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Public Roads
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WASHINGTON : GOVERNMENT PRINTING OFFICE ¢ 1921
Owing to the necessarily limited edition of this publication it will be impossible to distribute it free to any persons or in-
stitutions other than State and county officials actually engaged in planning or constructing public highways, instructors
in highway engineering, periodicals upon an exchange basis, and Members of both Houses “of Congress. Others desiring
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ments, Government Printing Office, Washington, Tose
U. 8S. DEPARTMENT OF AGRICULTURE
BUREAU OF PUBLIC ROADS
PUBLIC ROADS
VOL. 4, NO. 8 H. S. FAIRBANK, Editor
TABLE OF CONTENTS
Page
Motor Truck Impact Tests of the Bureau of Public Roads, Earl B. Smith . 2 ate
The Federal Highway Act : : : : . . . : 17
Control-Plant-Mixed Concrete Tested ta NEnstanns ore Haul : : ; : : ; 22
Status of Federal Aid, October 31, 1921. : : ; . : : : ; ‘ ; 24
Federal-Aid Allowances. ; ; ; : ; : ; , : /2.8
THE U. S. BUREAU OF PUBLIC ROADS
THOMAS H. MACDONALD . } : : : : ; : ; : Chief of Bureau.
Pasi cle WIL Ne ee tee ee ; > hy eae 2 eee .* 2 3Chief Engmeer
EaSHEWES : ; : ; : : ; : Deputy Chief Engineer.
EW. JAMES” ; : : , Chief of Design.
Hehe BISHORs = ‘ ; 3 . : , : ; : 2 : Chief of Construction.
Avra OL DBE CK x: ; ; : i : ; ; , ; 4 : ; Chief, Division of Tests.
T. WARREN ALLEN ; : : : : ' : : . ; é : Chief, Division of Control.
Gesu iS o : , ; ‘ : : ‘ é : ; ; : : Asst to Chief of Bureau.
DISTRICT ENGINEERS
DISTRICT No. |, Oregon, Washington, and Alaska. DISTRICT No. 8, Alabama, Georgia, Florida, Mississippi, South
C. H. PURCELL, Box 4167, Portland, Oreg. Carolina, and Tennessee.
DISTRICT: No. oy California: A. E. LODER, Box 750, Montgomery, Ala.
C. H. SWEETSER, 886 Mills Building, San Francisco, Calif. DISTRICT No. 9, Connecticut, Maine, Massachusetts, New Hampshire,
DISTRICT No. 3, Colorado and Wyoming. New Jersey, New York, Rhode Island, and Vermont.
J. W. JOHNSON, 301 Customhouse Building, Denver, Colo. G. H. MILLER, Federal Building, Troy, N. Y.
DISTRICT No. 4, Minnesota, North Dakota, South Dakota, and Wisconsin. DISTRICT No. 10, Delaware, Maryland, North Carolina, Ohio,
E. O. HATHAWAY, 410 Hamm Building, St. Paul, Minn. Pennsylvania, Virginia, and West Virginia.
DISTRICT No. 5, lowa, Kansas, Missouri, and Nebraska. V. M. PEIRCE, Willard Building, Washington, D. C.
J. C. WONDERS, Douglas County Courthouse, Omaha, Nebr. DISTRICT No. 11, Idaho and Montana.
DISTRICT No. 6, Arkansas, Louisiana, Oklahoma, and Texas. T. M. KEENE, Smead-Simons Building, Missoula, Mont.
J. D. FAUNTLEROY, 501 Wheat Building, Forth Worth, Tex. DISTRICT No. 12, Nevada and Utah.
DISTRICT No. 7, Illinois, Indiana, Kentucky, and Michigan. B. J. FINCH, 403 Fred. J. Kiesel Building, Ogden, Utah.
J. T. VOSHELL, South Chicago Station, Chicago, Il. DISTRICT No. 13, Arizona and New Mexico.
E. S. WHEELER, Luna-Strickler Building, Albuquerque, N. Mex.
et
=
7) ee
Se
elie WOTOR TRUCK IMPACT TESTS
OF THE BUREAU OF PUBLIC ROADS
By EARL B. SMITH, Senior Assistant Testing Engineer, Bureau of Public Roads
TYPES OF TIRES AND WHEELS USED IN THE EXPERIMENTS.
N the former report’ concerning the investigation
of this subject the data and information aimed to
show the magnitude of the impact forces developed
by motor trucks passing over roads at different speeds
and under different loading conditions. It was shown
that the type of the truck, that is, whether it had a heavy
or light unsprung weight, had considerable influence on
the resulting impact. It was also shown that the type
and condition of the tire had an even larger influence
on the results. Most of the tires used in the former
investigation were of solid rubber; these were com-
pared with cushion tires and pneumatic tires, showing
the cushioning effect of each and the relative impact
forces resulting from the use of either type. Since the
publication of the former report the investigation has
been continued to include more cushion tires in com-
parison with solid rubber tires, and also a series of tests
to determine the relative cushioning effect of different
kinds of cushion wheels. The present report concerns
1The Motor Truck Impact Tests of the Bureau of Public Roads, Public Roads,
March, 1921.
76799—1
only the results of comparisons between solid rubber
tires, cushion tires, and cushion wheels.
The copper cylinder method was used to measure the
force of impact and the results are given in terms of the
static load which will produce an equal deformation of
a standard copper cylinder The details of this method
of measuring impact are given in the former report.
Other details and methods of procedure were identical
with those used in the former series of tests.
The curves and data shown in figure 1 give the static
deformation values under different loadings for the
different tires mounted on solid wheels and on cushion
wheels. The photographs perhaps give a better idea
as to the types of tires and wheels used.
The experimental data as obtained during the test
for each different condition are shown in charts Nos.
134 to 207, inclusive. The sizes, weights, and loadings
of various trucks used are shown in Table I. The
tables under the graphical charts Nos. 134 to 207,
inclusive, show the data and constants with reference
to the charts above.
No. 42- Dual, 36°%4°x 3" Cushion, New-Tire Defl.~ 44°
No. 33—A-One, 36"*7 *x2y Solid, New, with Cushion Wheel-Total Defi.= 50°
No. 29-Dual, 36°%4°x 24 Solid, New-Tire Defl.*.42°
No. 30- One, 36 *x Bx 34" Solid, New- Tire Defi. 48°
No. 47-One, 37°x5 *x 44" Cushion, New- Tire Defi. 64°
in Thousand Pounds
an
2" Drop Test (A puts’ pstruction Test pe |
| aan Es
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: ted
2 i
2]
: ia
4
o2
2
=]
Fo 2 4 6 8 10 2 4 16 18 0 2 4 6 8 10 Be Hr
Miles per Hour
FIG, 2-TON
2—COMPARISON OF TIRES AND CUSHION WHEEL,
TRUCK A WITH 2-TON LOAD.
No. 28- Dual, 36x 5"x2 ” Cushion, New- Tire Defl.=
No. 36- One, 36° X10" 2 “Cushion, New- Tire Defl. 239"
No. I] - One, 36°x 10"X2$" Solid, New-~Tire Defl.=.26"
No. }i- A -36" “x 10" Cushion Wheel, with No.1] Tire-Total Defl.-.32"
No. 11— 8 -36'x10"Cushion Wheel, with No.|| Tire-Total Defl.=.30"
2"Drop Test (A) 2" Obstruction Test (B) 48
n
nN
Pounds
§
a
e
a
@
o
>
n
Equivalent Static Load in Thousand
S
No. 42- Dual, 36° x4 x3, Cushion, New -Tire Defi. =A6
No, 33— A-One, 36°x7 "x2¢ Solid, New, with Cushion Wheel-Total Defi. 57
No. 29-Dual, 36°x%4°x 24 Solid, New- Tire beh= 5"
No, 30- One, Pore 1.52"
Solid, New - Tire
No. 47- One, 37°x 5°x Cushion, New-Tire Defl.> 70"
|| 2" Drop Test (A Defoe toe | | || 2” Obstruction Test (B EA
Saas enen
CCE
TY zea
yaa
lent Static Load in Thousand Pounds
Equival
n
ee | ee eS ea
Miles per Hour
3.—COMPARISON OF TIRES AND CUSHION WHEEL,
TRUCK A WITH 3-TON LOAD.
2-TON
FIG,
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z OS SO Sta vic ce Ot
SPUNCY PUDSNOY! Us PDO 214D4S
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.2€'1f20 P41L - MON ‘PHOS Be "O1x,9€ @UO-11 ‘ON
t) ccs fed P41, -MeN ‘UOIYSND $2x, 01x, "Of 2UQ-9E'ON
Opheures 7G 10 312 4 nI@gIO MnO | ie at eemGr es 6 ail0L 204 eiGenlome 20 (LE=1F2Q B411-MAN "UOIYSND ¥2 x5 x,9€ 10Ng -9zZ ON
Miles per Hour
FIG. 4.—COMPARISON OF TIRES AND CUSHION WHEEL, 3-TON FIG. 5—COMPARISON OF TIRES AND” CUSHION WHEEL, 3-TON
TRUCK P WITH 23-TON LOAD. TRUCK P WITH 434-TON LOAD,
TABLE 1. See size, megs and ails of trucks.
Empty weight. Unsprung weight. Distribution of load (cargo only). Total |
= sprung | Spring Total
| | | | weighs a load a
m | Rated | ) on lrear| tion for roa
ruck. Bee ae ee | | | Per cent |
| capacity. Total Front Rear 'On2rear| Onirear| Total | Tofront| Torear | ofload ras sha ates
ts al allie * | wheels. | wheel. | weight. | axle. axle. | onrear cad weight. | wheel.
| | anle.s/ track)
3 Los 2m | r » £5 3
|
| Tons. Lbs. Lbs. Lbs. Lbs. | Lbs. Tons Lbs. Lbs. Lbs. Ins. Lbs.
Pele ce eo eas eee 3-3} 9, 500 3,800} 5,700 3,400 ie Pd, 7000] ete tee | cake Be Sacre aes sae eae ee 1, 150 0.48 2, 850
Peete: 2: . Evade 3-34 9, 500 3,800} 5,700| 3,400| 41,700 Qh 400 4, 600 92 3, 450 1.44 5, 150
DiS caacee Sy eens creel a rere | 3-34 9,500} | 3,800) 5, 700 3,400 | 1,700 4h 700 8,3 92 5,300 2.25 7, 000
9 ES pp ea ee gh 8 iar Se | 2 7, 800 3,300 | 4,500 | 2,000 | 1000) 55 ere cee Sse tee ce ee eelen aes 1, 250 1.02 2, 250
Ac tO. ee aa eae eee 2: 7, 800 3,300, 4,500 2, 000 1, 000 2 —100 4,100 — 102 3, 300 2.70 4,300
A Wi me Le Sareea SO 2 7, 800 3, 300 4,500 —-2, 000 1, 000 3 400 5,600 93 3, 900 3.19 4, 900
Asst +, 2 ee en 5 9,850! 3,900| 5,950 3. 9000: fovie 1: 950; ected Sere. 5 ASC eee |. ae ee 1, 050 .38 | 3, 000
BNE ea whe da 204 oe eee 5 9, 850 | 3,900 | 5, 950 3, 900 1, 950 5 50 9,950 | 100 5, 950 2.12 | 7, 900
VE See ee in oe oe 5 9,850; 3,900; 5,950 3, 900 1, 950 esl hope See 15, 150 100 8, 650 3.09 10, 600
Rea eo. ce ee ee 74 | 15,000 5,180 | 9, 820 3, 000 1; 500} [eee secede alee see eee 3,410 1.06 4, 910
Ki Ba Sawa teak. Zan coh ae nee eee 7 15, 000 5, 180 9, 820 3, 000 1, 500 74 80 15, 090 | 100 10, 950 3.25 12, 455
Wea eat ae eset Seene eos ene 74 15, 000 5,180 | 9, 820 3, 000 1, 500 10 150 20, 650 103 13, 235 3.86 14, 735
STATIC DEFORMATION OF TIRES A POSSIBLE MEASURE
OF CUSHIONING VALUE.
In figures 2 to 7, inclusive, are shown the impact
forces delivered by the trucks under the different con-
ditions and using the different tire and wheel equip-
ment. The best cushioning effect and the least impact
force developed in this series of tests was observed when
using tire No. 47, figures 2 and 3. This was a new
cushion tire, 36 by 5 inches, with a total depth of 44
inches, and having a complete annular opening in the
center of the tire. This tire, when tested under dif-
ferent static loads, showed almost uniform deflection
in proportion to the loading, and a somewhat greater
deflection than a pneumatic tire under the same
static loading. Compared for cushioning effect under
impact forces, other conditions being constant, the
pneumatic tire was found to be much the better
of the two.
IT TO a EES PE YS LTE TET
Thousand Pounds
eo
_formly increasing resistance.
5)
It was observed in these tests that the deflection of
different tires under different static loads was a fairly
reliable indication of their cushioning effect under im-
pact forces only when the tires compared were of the
same type; that is, when comparing solid rubber tires
with each other, or pneumatic tires with pneumatics. It
is not a proper basis of comparison between solid rubber
tires and pneumatic tires, probably for the reason that
the deflection of the solid rubber tires is dependent
largely upon the shape of the tire and the quality of
the rubber, and that the resistance to deformation is
not proportional to the loads applied, but increases at
a greater rate than the increment of loading, thus caus-
ing an increase in the unit load on the rubber. The
deflection of pneumatic tires is practically directly pro-
No. 46- One, 40'x 14'x 3" Solid, New-Tire Defl. = Al"
No.45-One, 40" x14"x 3" Solid, New-Tire 50" 41"
No. 41= Dual, 40°x7"x 3" Solid- Tire Defl. =
No.40-One, 40°x 143" Solid-Tire Defl.=
No. 39-Dual, 40" %7'x 2" Solid- Tire i
No. 39-A- 40° Cushion Whee!- Total aa Wheel and Tire =.41"
No. 39-8 - 40" Cushion Wheel~Total Defl. Wheel and Tire = .30"
No. 39-C~- 40"Cushion Wheel - Total Defl. Wheel and Tire= 40°
“eee
eee
yf
iA Ah RE ooo
eae ha
Miles per Hour
FIG. 6—COMPARISON OF TIRES AND CUSHION WHEELS. 74-TON
TRUCK K WITH 24-TON LOAD
portional to the load applied, or according to a straight-
line law, and the resistance to deflection is not depend-
ent upon the material of the tire but mainly upon the
air within. The unit load remains practically con-
stant, but, by virtue of the increase in the area of
contact as deflection proceeds, the tire offers a uni-
The cushioning proper-
ties of the pneumatic tire remain in proportion to the
load’ and still function at the end of the blow. This is
in contradistinction to the cushioning effect produced
by solid rubber tires, in which the rubber increases in
density under increasing loads and deforms in such a
No. 27-Dual, 40'x 6x lig Solid, Worn-Tire Defl. au
No. 26-One, 40x 10°] Solid, Worn-Tire Defi. =
No. 43- One, 40°x 12 x3 Solid, New- Tire Defl.= re
No. 44-Dual, 40x63" Solid, New-Tire Defl.=.51"
ae 2 Drop Test (A)
——2"Obstruction Test (B)|927
CEPOL
siete eae
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/ O2
Ty 7
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nN
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ee ENoe
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Saleem 17a
ee AA
024 pee /| / \7
oa eee ae) A
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£2 7
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=
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CER
Paes
ia
eee SE
105 eat | i616 20
Miles Ben Hour
FIG. 7.—COMPARISON OF TIRES. 5-TON TRUCK A WITH 73-TON
LOAD.
manner that the unit intensity of loading at the point of
contact is very greatly increased, thus offering less
cushioning to the load as it is brought to rest, with
the result that the deceleration at the end of the im-
pact may be very greatly increased. This difference
explains the more complete and effective cushioning of
the pneumatic tire.
TESTS OF CUSHION WHEELS.
The development of cushion wheels has come about
as a result of the attempt to combine the rugged de-
pendability of the solid rubber tire with the cushioning
and shock-absorbing qualities of the pneumatic tire.
Three different makes of cushion wheels were used in
these tests, two of them being very similar in construc-
tion. Their main feature was a corrugated rubber
cushion interposed between the base rim on the outside
of the wheel and an inner rim or felloe. On this wheel
was mounted an ordinary solid rubber tire, the idea
: 3
TABLE 2,—Data referring to graphical charts.
Tires. Springs.
Sprung Unsprane
| weight | weight :
: non Weight of) Defor- Deflec- Y
Beh, Truck. Capacity.| Load. | Prien c Care i macro MiAHED: tion Type of test.
“4 | wheel wheel Now| Kind. ieee i | No. | due to
| (Mg.). mg.). | wit whee sprung
| | Soy ee tires. load. weight.
Tons. Tons. | Pounds. | Pounds. Pounds. | Inches. Inches.
134 | xan |. 2h] 8.40062 1,785.0 98) Cushion. memes ee 610| 0.31| D 1.44 | Drop.
135 3-34 4h 5, 300 1,785 28a y NL es: 62255 eae we ~s O10 ASTD 2.20 Gh
136 3-34 2h | 3, 450 1, 785 28 gee glhOne te wa tech ceee cere aictnerete 610 el We LD) 1.44 | Obstruction.
137 3-33 44 | 5,300 1,785 Otte 8 Mats GO fas : ae Seas ees ee 610 37 he D 2, 20 Do.
138 3-34 24; 3,450 1,770 BO alee dO. S852 Sere eee ane eee ae 591 ~29 |) oD 1.44 ae
139 | 3-34 44 5, 300 1,770 Be bl eee 0:33 co Pe see os 591 ay |AD) 2. 20 Onn
140 3-33 2 \ 3,450 1,770 36 bait) 3d. Se eee eee ee 591 .29| D 1.44 | Obstruction.
141 3-3} 44} 5,300 1,770 36) cae ligtyce Saal dey See ES 591 AEST) ea: 2. 20 Do.
142 3-34 Opal goo 1, 840 {icAul Solidce Meow see cee sanee 664 20 ee .48 | Drop.
143 | 3-34 441 5,300 1, 840 LISA Sone rerio Ane Nea: Sige 664 ALD 2. 20 Do.
144 | 3-3} 2h 3,450| 1,840 L1—A: iG Oe semen eee aee eee 664 | sae =D 1. 44 Doers
145 | 3-34 0 1, 150 178404) 2 ALLAN se dort se ere ee 664 20}; D .48 | Obstruction.
146 | 3-3} 42} 5,300 15840 He icles 0. By vo ene ee Ree 664 .41| D 2. 20 Do.
147 | 3-34 21 | 3,450 1, $40 AG don. Wc ee ees 664 | .32| D 1. 44 Do.
148 | 2 2 3,300 970) 42 Cushions, (eS Fee 395 .44| E 2.70 oH
149 2 3 3,900 970 AD Clio ste Cae ME Mies tie eats EAS 395 .46| E 3.19 ee ‘
150 2 2 3,300 O70 oc rd al noe ed Obes Sete ieee eee 395 .44| E 2.70 | Obstruction.
151 2 3 3, 900 9707), —4deedale sce. Valle ated = Maes ger neec et 395 .46| E 3.19 Do.
152 2 2 3, 300 1, 000 29 Solid Seeteeeant aaeen eae 420 .42| E 2.70 | Drop.
153 | 2 3 3,900 1, 00041") 220 tiem aoe: 2 dO: eS Ss ee 420 .46| E 3.19 Do. .
154 2 3 3,300 1, 000 Dig Bates Oss. foes eee eee 420 .42| E 2.70 | Obstruction.
155 | 2 3 3, 900 1, 000 Fie one GO... Si Reese we aemen ee 420 .46| E 3.19 Do.
156 | 2 2 3,300 1,025 30 Raktoe ee dos: Cae 457 .48| E 2.70 Do.
157 2 3 3, 900 1, 025 SO reece: do... eee 457 +52: 3.19| Do.
158 2 2 3,300 1, 025 BOS pileetes doe get RS eee 457 .48| E 2.70 Drops
159 2 Sy [8 35900 1,025 30.5 @alnc. One. pope ee eee 457 152s |ep Et 319 hel 0.
160 | 2 0 1, 250 1, 100 83S Ral Oe ee eaten eee mere 516 | Bez AD 1.02 | ¥ } Do.
161 | 2 2a 3,300 1, 100)}_ 1433-Asi d0.c ee Sree 516 50 |. E 2.70 | i Do.
162 | 2 3 3,900 1, 100 33-44]. 0 dO Fecal i. a em 516 yelp a> 3.19 Doms
163 | 2 | 0 1, 250 1, 100 33-A_ |... ies cr yer yee ae ae Rane 516 MOTH Es 1,02 | Obstruction.
164 | 2 2 3, 300 151005 g 158-AG la dos aretha eee eee et cate 516 OO ne es 2.70 Do.
165 2 3 3, 900 11000 ¥33—An ree AG 4 ha ee 516 57| E 3.19 Do.
166 | 5 7% | 8,650 1, 920 430% 812 48| F 3.19 | Drop. _
167 5 7% | 8,650 1,920 43 | 812 48| F 3.19 | Obstruction.
168 5 7k 8, 650 1,920 44 800 51| F 3.19 | Drop. __
169 | 5 7 8, 650 1, 920 44 | 800 A at 3.19 | Obstruction.
170 5 7 8, 650 1,790 27 680 DN 3.19 Do.
171 5 5 5, 950 1,790 27 680 218) 2.12 Do.
172 bl 5 7h 8, 650 1; 700s eno oem O0:ci 8 ee Be a ee 680 ise: 3.19 | Drop.
DTS NMAC ooo. cose eee ois 5 5 5, 950 1,790 27 dO Ree ry Sa: 680 448) on 2.412 Do.
L7G AGS uc Coo eeee nea 5 7 8, 650 1,740 Pe Cy leeee 0.2332 coe epee cae ee 635 23 | F 3.19 Do.
1755 GA . ee ee 5 5 5, 950 1,740 | D6 = Mie COE re ae ace 635 “20a ee 2.12 Do. —
V 7G uh PAs ok. oo ees wow oe 5 7 8, 650 1,740 Pe © Ucn eee (6 (0 RB SARE Ree se ha 635 .23| F 3.19 | Obstruction.
mB NV Neale Fa ie eNE a det 5 5 5,950 1,740 2G Tilseece CON Pe es eee eee 635 -20| F 2.12 Do.
Ty gg (a ak A a ae Se 7k 7k | 10,950 1,525 SO=Ael Ss Osteo eee ee 1,045 .41| V 3720) Drops
R70 e Maer sence esse ce 73 7% | 10,950 1520; BaO-Ar jhoees dO ee ee 1,045 -41| V 3.20 | Obstruction.
TRO Mecsas 7% 73 | .10, 950 1,710 30-Bilo.ces oreren thet revs ot eens 028 .30| V 3.20| Drop. .
GA Mine aoe ce seen.» sae re’ 7% | 710,950 1710p eB 0-1 leee oe Pi (oe nee Nien Bes ey 1, 225 .30| V 3.20 | Obstruction.
ASQVIN oe see. oe 7 7k | 10,950 16721) “245° |) Cushions. s2bhsoe) coe see 1,190 ar aly) ai 3.20| Drop.
183) |s Me oe eee. 7k 7i | 10,950 1 6725\) EAS eee One nea ene see Ome 1,190 CoE AY 3.20 | Obstruction.
184 Mer See won oat ve’ 7% | 10,959 1,606 | 46 SOMA ete eee ee 17193 .41| V 3.20 | Drop.)
£85: |! Magticcsteees ices e 7 7k | 10,950 1; G06 ty d6) tse cak i Re ees pai Salle AMR 1,123 41 |W 3.20 | Obstruction.
186 | M.....-.......-.--- 7 | 7% | 10,950 12203 AD a soe O2s.c tess tens se eee 1, 235 SE ONG 3.20| Drop. _ -
Te PE Be eae Ceo (63 7 10, 950 1,720 | AQ eae co Meee Seam nee oe MEET me ree 2 1, 235 R33 ee 3.20 | Obstruction.
188 | M......--..-.-.-.- 73 10 13, 250 1720) beau 40 ae HES ate he ee pe ets Roe Pi ead Le 1, 235 .38| V 3.64| Drop.
HSER ed hg es SAE eae 7 | 10 13, 250°] *1,.720" AD eee oe G0 ht ees Cees 1, 235 Sag" Gay 3.64 | Obstruction.
LOG Sic Sota =» atietereecacaiete 74 | 7 10,950} 1,590 Ae ee ow GO. ssc c eter cee eee 1, 109 .50| V 3.20 | Drop. _
191 | M.........--.---.--| 7 | 7% | 10,950 1,590 CL sce Oc cos sete eee sane 1, 109 .50| V 3.20 | Obstruction.
19D Meets, Becceemeee 73 | 10 13, 250 155005 4 Tien ee OOsceea nine snes 1,109 .56| V 3.64| Drop. _
TOO HOM Siento caetemerertere 7% | 10 13, 250 1, 590 | va Sy eae 5 Osco coh cet et eee 1, 109 .56| V 3.64 | Obstruction.
194 | M.....---------++-- 73 74 | 10,950 1,5 89 SOs. de OR at crane hee a 1,017 .29| V 3.20| Drop. _
LOD AieM Shee eee ners aoees 74 7 10, 950 1, 500 3925. [Sear dOstck. eter ae ane. 1,017 .29| V 3.20 | Obstruction.
LOGSIAM: 2.05 Se =. Oe ae | 7% | 10 13, 250 1, 5003) 39 wate Orie acne eee eee 1,017 EPI | 3.64 | Drop. |.
197 | M.........--...---- 7% | 10 13, 250 1, 500 30 see wae dole See 1,017 rr eg 3.64 | Obstruction.
198) WA Sette eee nee ee 2 | 2 3,300 910| 47 Cushions tae sere eee | 340 | 64] E 2.70 | Drop.
190 WA ties sen oar meas 2 2 3,300 | 910 27 oe 1G een eee eee eee 340 64} E 2.70 | Obstruction.
DOOIIA SEES Sr Seabee Sa 2 | 3 3,900 | 910 ATA Wehodke Olimar PA cigs fae Sirs ee 340 .70| E 3.19 | Drop.
201 | An. sion ot. we eene se 2 3 3,900 | 10! laame Av, eee: CO Fee es ie Se oe 340 .70| EB 3.19 | Obstruction.
202 | Me. .2c-.-.s.e-s-e. 7} | 7} |\ $10; 950. |" 617508 [Wat e008 T Bold te. <r cers 2st teres 1, 045 eR Aa 3.20| Drop.
208 | gcse ee eae 7% | 74 | 10,950) 1,528 39-C |..... Gc sb Cee ee eek ee oe 1,045 S37 al, Mi 3.20 | Obstruction.
DEEP 3 eae oe ae eee 3-33 | 24 3, 450)) nema, S22 11-B |..... dol = OMe eae: 646 401) 1.44| Drop. _
205 | P............2------ | 3-33 | 23 3,450) 1, 822,|- 0 11=B. ie. 0.1) eee een eee 646 Ata) TD 1.44 | Obstruction.
206 | Po. --- esse eee ee eee 3-3} | 43 | 5,300} 1,822 11-B |..... 0.1. £5. Spits cackbass steed 646 .50| D 2.20| Drop.
207 | P.....-..----------- 3-34 | 44 5, 300 1, 822 fi-B alee AGRA Oe, ans em 646 .50| D 2.20 | Obstruction.
| ' i
1 With cushion wheel.
being to furnish an additional cushion between the so constructed that there were six solid soft-rubber
felloe at the end of the spokes and the rim of the solid cushions carried in the supporting rims in place of the
rubber tire. All of this necessitated a very heavily ordinary spokes. This wheel seemed to be very much
constructed wheel, making the weight much greater more flexible than the other two.
than that of the ordinary rigid wooden wheel. The Referring to figure 6, showing the comparison of
tests of these wheels just described are shown in figures tires and cushion wheels on a large 74-ton truck carry-
4 to 6, inclusive. They are designated by the numbers ing full load, it should be noticed that the tests
39-A, 39-B, 39-C, 11—A, and 11—B, and the wheels are designated by the curves 39—A, 39—B, and 39-C, show
distinguished in the photographs by the same numbers. in their average results very little or no practical advan-
The other wheel used in the test is shown in the photo- tage over the ordinary solid wheel carrying the same
graphs and is designated as No. 33. This wheel was _ (Continued on page 23.)
ek,
Ce R0ener.e-=e0eReeer eee
=i yt O |
CEE EEC ERE Ha
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ae ser eae eer
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ss nuova wa BEBUBERES-EREESE
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O een eis B [Ome cae i] 18 Oi lie t, en me, ait at 8
oe pir i. ed ‘i: 8 etnies.
Sprung Gases f - = Tires ——_______—__—|— aa X
h weight | weight ‘Weight of Defor- | Deflec- re iia
Chart tk Japacity Pee a Oe One | one rear | mation tion ‘ype of test.
No. ue pepe | emg! fea oar rear | No Kind. | wheel | dueto No. | due to
wheel wheel | — " | with | wheel sprung
) (Mg.). (mg.). | tires. load. weight.
ar et | | | ¥ oe oe I 2 ounds hes ; Tackes,
| Tons. | Tons. | Pounds. | Pounds. ; | Pounds. | Inches.
11324) |r ee ees os 3-3} 24 8,450 1,785} 28 CniSHlOn sem aver oe a meeee ot oa 610 0.31; D al adie,
aN ae ae | 3-38 44| 5,300| 1,785) 28 |..... 0... 22-220. e ee ee esses ee 610 on + ay | Ghesraetion
136, P 3-33 23 3,450 1,785 25 ee OE Lae 32.8 Se ees 610 -31| D str ;
| bee e eee eee ee ee eee et | , at age yee dpe ae ee te 610 32 | D 2. 20 | 0.
coe Lo ae ae 3-3} 4h 5, 300 L 785 28 do 3h ae eras
ET Se ae 3-3 eats 450.1) 0. 7700) we 00) Nee. LET Eg ACA ere 501 29 44
GH) Als ee a ee a | 33h 4} | 5,300 1.70 | 360 ----- O..--..---- +++. Fr ee at a > Ou | Ot caedatined
ON gare Ree em ewe s-as ai 3) 450 1,770 BB sees RRS AR sol aD AAs | ORs ere
| 1c Se a ie ie ee 3 43 5,300 er ag ew CR ote wee toe rete eee 56 +3! pr ee
0| 1,150 1, 840 | i1- RBH pate te ct aes oc nd cae 664 | 20. =D
8
a Te i DS eae Fe a ee
BRE Aa” eae eee eee
O
ARRAS
neve Rear Seeee
ms ite ye cect 28
(Oa RS 2 foe fear 0 8) Oa ial ola
ESI o/b Te ag ot _|
[eS AS ai be! i/o Se
16 t
a
HAA eee | oa ees
= (E72 ESSE ae ee Pe ee ee
eee a ae eZ Pewee ePee ee |
10 Of re, Z er -
aka S ese: Fedo el ea
8 5 — Oba | > = 6 a ® Onc) = 0 <<. ae ESET
eae ied ee ae ee ESSE |
6 CG +> Z| = e= e
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2 4 (5)
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& 16 /
7b ee US SE Se ots P| oh 1 See
aid WA a Fd is a RERSe
< l2 i G14 4 ¥ Or Z = ent os. es sits
RR SAS 2G ee 4 yee SASS oem
B | ole et ote | ay ore es Ree en ee
CS | oer oe Va: oe oa /| Z OS
oo 7 CoD Sen ins
Oak aa Yes sell
Poa a | BRBMesesSria
y | a S| A Nol Zl
Fee Ea la BRR eeaSserin
Vem Bee me) oi LTP i a
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20
mz: Sele SIR a
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CABS ate ee le olSral | | ie] LL ee
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é je Ae eo O 6 te, O—-D-O
[ A | ea] a
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4 | ean Gyo) fees As O OO
— wer ar
ee UL epee rerhen | 21d
- ZEee2 aches AL el alae
e ¢ 4 O 8 lOmals 4 lo Is Oo 2 4 rts Es ae ace 4 16 3 (0) 4 @ S 10 4 D in ‘
epcang beeertras Tires. Springs.
/ wolghh 1-Weleht | Weight of, Defor- Deflec-
on Truck. Capacity.| Load. | C2008 | omone | poe Hae mation tion Type of test.
evr | ROOT ai = TORE | wheel due to No. | due to
/ wheel | wheel No. | Kind. with wheel z sprung
(Mg.). | (mg.). tires. load. weight.
Tons. | Pounds. | Pounds. Ce Pounds. “Inches. . | Inches.
4} 5,300} 1,840 664 0.41) D 2. 20 Drop.
23 3,450} 1,840 664 sae 1.44 o.
0 1,150 1,840 664 20 D>} -48 | Obstruction.
4h 5,300) 1, 840 664 41| D 2. 20 Do.
24 3, 450 | 1, 840 664 32 NDI 1.44 Do.
2 3,300 | 970 395 E | 2.70 | Drop.
3 3, 900 970 395 46\| E | 3.19 0.
2 3,300 | 970 395 | E 2.70 | Obstruction.
3 3,900 | 970 395 46 K 3.19 Do.
to)
Ss
es
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ean
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ee SS 62 PS Pare Pa ee
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po SaaS Sean aes eee
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ee eV ee es Es
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om
°% Pee Ol O10 41 nO ae Oe et OME DONNA 4 IG NS Ome 64. 6. B10 12 i 16 16 20
MILES PER HOUR
aaa pyre] Sie ipeearow) ye <1 eee
| Sprung |Unsprung) : Tires. as ese prings.
| | Sa el ha one | Weight of| Defor- | Defle- |
ale Truck. Capacity. Load. ee en | os | cha § | ue cares Ty pe of test.
, | wheel | wheel | No. | Kind, with | wheel | *] sprung |
(Mg.). | (meg.). tires, | load. | weight.
: — = Sees | __|-_ | :
Tons. | Tons. | Pounds. | Pounds. Pounds. | Inches. Inches.
152 | A 9 | 2.) 3,300 1,000 |) 20°" | Boll 7 sea. eeReeee aoe = 420 | 42) E 2.70 | Drop.
aii Abemeds..)sa: 7 -..-| 2 | SPE to ee | dees te edo., 2a oe eae cena ay 420 | 46| E B:19'} =<" Dior
Hay oat. lk. 2 | 2| 37300| 1,000| 20 |.....do... 420 | 42) E 2.70 | Obstruction.
1575 Soe ee ea 2 3} 3,900 7000, «29 420 | 46| E 3. 19 | 0
TW WO, eee 2, | 2| 3,300 1,025; 30 457 | 43 | E 2.70| Do
ORT haeebeseh eS | 2 | 3| — 3,900 1025; 30 457 | 52} EB | 3.19 Do
it. | cat fare 2 2| 3,300] 1,025| 30 457 | 48| E | 2.70| Drop.
MR ee 2 8 | 3,900) oa | 30 fe.o 457 | 52 | z | a4 He
OT Ne el a 2 0 | 1, 250 1, 100 33-A 516 | ae: 02 0.
76799—21——2
THOUSANP POUNDS
2
1G
4
Pa ey
aE
ee
4
O
bert ae
Lh
B
i
Pera ets
heh
>be ded a
Pa ie i:
Fs a ed
Bip anee BL
pee
pee 015 | aloe eis a ae a
Eg
S
=
Sg i ed PG eh a has
te
EEE
bal laa)
ema] | | | | |
| ee ee
ise
Ib & |
TUE
2 ee
Ged i a == Sea des |
LES
ae [eT oi oe a
O
O==
| Sprung |Unsprung :
Bhard | weight | weight =
) eee eae onone | onone
No: 44 Truck. Capacity. | Load. | rear rear No. |
wheel wheel a,
| (Mg.). | (mg.). |
bd Tons. Tons. | Pounds. | Pounds.
161 | 2 2 hens 300 1, 100 33-A | Solid.
162 2 3} 3, 900 1, 100 33-A |..... do
163 2 O57 1, 250 1, 100 33-A | .-do
164 2 2 | 3, 300 | 1,100 33-A |..... do
165 2 3 3, 900 1, 100 33-A |..... do
166 5 74 8, 650 1, 920 ae eo do
167 5 7h 8, 650 | , 920 434 4S do
168 5 7 8,650} 1,920 Sh Ree: do
Tires. Springs.
Weight of| Defor- Deflec-
onerear | mation tion Type of test.
Kind. wheel dueto | No due to
with wheel sprung
tires. load. weight.
Pounds. | Inches. Inches. |
ee an 516 . 50 E 2.70 | Drop.
alee sal sige mia a eee ee 516 57 E 3.19 0.
EO RER CP ata, oo 2 Se gh 516 .27|) E 1.02 | Obstruction.
exe atten du Reeeee oe 516 «50 E 2.70 Do.
Asp ecg tee as coos See 516 57 E | 3.19 Do.
rh ee ee eS 812 -48 F 3.19 | Drop.
Coe eee) ae en be 812 -48| F 3.19 | Obstruction.
ars genteel Oh RR ed 800 51 F | 3.19 | Drop.
:
HEHEHE AAG
CECE CE Es
EE BS a A
Fe Wl
Sata Bes
cee er seme
fe RS es ee
Potato tt tt tT VN
CSCC Pe
SSS
ier ESS
Pee ae SES
hE aR eee a SoS aa
ABER SSE EE
Ho nd
Re See
Bee le
us
Fy Ft FAS a7
PSs FS A
BEES EEE
io") eS OS Se
2 | et 2
ee ea eo
SANN0d JNVSNOH.L
ERE
= aa
mal
a selbst 7 tall ala
im ofl rl
CPR
PN ae: E
Ema aa
ce SS SNS a se
SCC Ree OT
eo
cc ec el I el
‘enamel dain
ala Ts
Oh RING ks
BS CNN a
INSNG r
SANING SGI
CASAS LOTT
Pass RUE a ie Seal
haue Ran maa
BEGEBobek seal a
css cla Ie Is SPS
sg) Tn oe es a
Smn;% Sasi lec ese lick
ass Seley icchelaal
BACReSSc ON tee S355
CICS ietsi slab tole
ee ee See ee eee eT ee ee
Tires.
Type of test.
| ay
PRK ae
due to | No.
wheel |
load.
|
Weight of} Defor-
| one rear | mation |
| wheel
| with
| tires.
Kind.
Unsprung
weight
on one
rear
Sprung
weight
on one
rear
Capacity.| Load.
Truck.
Chart
No.
12
Y
BERS Sees ae wes 2 |
$ 04 my Sia
TA |] peel Be TE el FS aa sea 7 ee ee
Sh Baan Pa Ge Al sl Ize
J POCR Pee Bamana:
)
z | SPRSRESE SSR Ow ees Oy isi
1 / |
s a a
/ \
(|
c ane Als BSS Awe a). |
Teh CAD sll setae AEN Se AS!
AG 2ERRERe SARA s:
4) Z|
1G =
An Fee Reese eRe VAS ee
FE |
ae a ES Si eRe Zen.)
AN Ae TR) ee Vee
LIA Ze JR RRR eee eee 2a
A Aaa ata b, MD Eas,
10 S : 4 ——
et Pees Sing ES ae eee ate PO Oot ee a er
aia PSDs <P I ea a
“ps + Foal eae Pal al Se
: ma P| 2] ae ae
ee pf 9] ea
a 2O O) O)
: PST ES ST S153 aT a a
30 boc ar aS
SO RRRRRERERESERRRERESSe
Oo
gt ee sce see
© | O
Q 36
S)
SRS SRM eS ie Fea
SE PSR ce a a | a aS a
J fe 2
PS JER RRERSERRASANe
Pe | ba Ts PST Sor PS) SST Sa eb ee te
()
ed ee jee of KP |
o. :
Pah he Pal Lal SDE oc ls ea
4
26 O 7 iA /
z YT lp : [A |Y
e
fe EL ST PT eS ies 1088 aa
22 Y
BRS? Vaasa a
| A (y| Z| Aye. :
hte ALY Te bel Sa SIT
18 Z| | cH Ms V a a Z| ae Z| 4
Beastie “eee SAR eevee
r 1 eC A)
16 : [ULE w=) O V V ee is
mm Rs ae eR eves BPG oar
14 & eold a OF | ws, Wy
afoot [ssl | Lot ot oS TS Te eee
O
* CS ee AS O oc ee WE Wo A
DE Sas | Geo Tee
(ERPS PSP SREP
(SPREE SSRs
(Seesaw
a Ss PE less VS a
(ERE SEP es eee SReP eae
Oo
10-12 -4 16°16 -C .2 '4 (6:98 “0 (124 4 lee ea
re) 2 <4 2) 8 io 12 A 6 18 re) 2 4 Sane. ihe Ee
| Tires. Springs.
| Sprung Unsprung = ee ee = 2) St
| | weight eight | | .
Chart ieee \p vee pees ane | - | Weight of, Defor- Defiec- Type.of test
No. | Truck. \Capacity. | Load. rear rear | | one rear | mation tion yP Me
| wheel wheel No. Kind. | Wheel dueto | No. due to
| | (Mg.). | (mg.). | | ice wheal sprung |
ires. oad. | weight. |
ear | = cae ame ines
| Tons. | Tons. | Pounds. | Pounds. | | Pounds. | Inches. | | Inches.
ie oe ee res 5 | 5 | 5,950 1,740 96> 7 | Rietid 2. <a ee See ee ee | 635 | ga ee 2.12| Drop.
(ie) EY Cah IRA NS at 5 / 5 7h | 8,650 1,740 rt es, PR d0..ight Poe poe 635 BOs ak 3.19 | Obstruction.
DTT NA seers Ries oe Oe 5 5 | -5,950 1,740 OB eee 00... ee Relate 635 Sotithe ss 212 Do.
178.| "Mi abn aes ee 74 74 | 10,950 1, 525 ROSA ee dO:ste ee, ee ee 1,045 AT | ce Ma 3.20 Drop.
179." Mires See eye 74 74 10,950 1, 525 S0-A' [2% do... sah ee ee 1, 045 el) awd 3.20 Obstruction.
1S). KM see Sets oe oA 74 | 74 | 10,950 1,710 | 30-B ls... GO. . .25- teas accents 1, 225 -301 V 3.20 | Drop.
ee ee ee ae Fre >
—_—s
SS - —.
=
SEES SSSA SR Fa
(00S) TAS eee ee
Je SY eee ene
Sao) 20000 CRe0 Joo
e yp | f iY
SECA gS ST 7S
(Sere Seema Nee ele RET YS [oi
pee aaa eee ee) LAE Le
(egeceeenh GA ie ee
le RA SS Se eA ee eee
SAS ns Ae nS
Perm mn eee eens WE ors poten Ts [ps - 3
ppp a i}
J SS oe ee eae
BEE
ISS TS SP | a
Peeewimmemmmn he ry ey Ty
ee mem Mee Soe ete ae es
De EOS eee eee
Pemmee meme eee lo lek
ESS
eee ee Tet I
ieee aie eam eh leer TT
J. DO VES Ss in eee Ree a2
Re ee meme lo el Ye Pe
1 S747 FP 2 VA
fee CME em weal Ast earh Aa
OS 4D 2S aa ee 2 eee
ie eric el eto ay el | 7) | dol I
Seo es oh eee ee Beet TL
es SSSI SP Ft a 0 Pe
: tt
eee mrmme eee) ie Ee Pai
we SSO FF eu :
__ EDS SES SES eee e eee —
Te
Tires. Springs.
|
| Sprung |Unsprung| ae aS peat "a
et Mg Ww ight of| Def Defl
Chart 7 ee mone | on one |Weight of} Defor- | pflec- Ny ee
No. Truck. Capacity: | Load. orear. rear one rear | mation | i tion Type of test.
wheel wheel No. Kind. rie | sare oe | No. | due to
Mg.). mg.). with wheel | sprung
ea ae tires. load. | weight.
an “4 ee eer ee Inche
Tons. Tons. | Pounds. | Pounds. | Pounds. mches. | __ | Inches. ;
UML eee | g 7 74 10, 950 1,710 SUBD SOMO ]. cams seoe eine cess s-se05s 1, 225 . 30 an 3.20 Obstruction.
Lo 2) LS ee ae 7% 7 10, 950 1,672 45 CUSMI OMG a2 ay eens bs ote elie > 1,190 | fh 3.20 | Drop. |
SES Lt Bee ee ae 7 7% | 10,950 1,672 Pe Views 2c Gass. ee CN oo tae 1,190 41 Vi 3. 20 | Obstruction.
FETE Vs Ses Se ee 7h 74 | 10,950 1, 606 46 ET iat ORS <a ee eae 1 2”) 41] V 3.20) Drop.
LS ee ee er ee 7k 7 10, 950 1,606 AGT alls ant GG eta eet oa ones 1,123 -41 View 3. 20 Obstruction.
DOGGIE Soy Fergie salaceeis Se 74 Th 10, 950 1,720 80.6 ize aals oka Se ee ae ee ee 1,235 - 33 vo 3.20 | Drop.
ys ase ee OS eS
16 20
16
4
O
12
SH
8
ncaa cal
/
6
a
so
NEE
“ARE See ae aoe:
feels ae ibabibfolioieh
Perea Eee pa SR to EI [acl |
a aS Sek eeesee
2
CEPCRRREEE EEE
Giese a2 2 Sufetareosenenens tHonazt
JES ee ee ee eee Saee)
ol ee ee eerie)
SA
JSS eee oe
ee ee SNe
See ee
Bees eae eae eee
a °
" "
8 & § & 8 t
canned aNYEnoL:
Chart
No
ves
Soe ie
pa os (6g
Po -
Site
v
s Bit seen es
BB Sesas a
is) 2 OS Oe oO
Releoae
OACROA
& xo
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8 aoop S° SC
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=i Sst or = >t}
wa S aera
» Perere
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righ eran RREBBR
S50 Sea Bae
235093 | -<
Pests | &
Ascen ber
}
| — !
29 | $288888
2 3'S.4 & / SSRRaaz
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ga = ca <j
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a eee 2 2 3, 300 910 | 47 | Cushion........... Se ere ane 340° 0.64; E | 2.70 | Obstruction.
200 DAS.5% 55-2, Soe 2 3 3, 900 910 47 haoe oe Ga eS oe ee St es 340 -70 E 3.19 | Drop.
201 el WC Sea 2 3 3, 900 910 AP ace ily BS ee S itaphars an Soe See 340 -70| E 3.19 | Obstruction.
DOR TM wig Ge Lx ta 7 74 | 10,950 1,528 30, OF Solit 2: o-eaae eke See eds 1,045 | Eo Mead 3.20 | Drop.
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2 Na) Mla Se ce se cee 3-34 24 3, 450 1,822 iS a aes te Co ele See a 4 <p BOY ab 646 -41} D 1.44 | Obstruction.
206 Po. eee Se fee oe 3-33 4h 5, 300 1, 822 1B eee GG3 5. Se ee ee 646 | - 50 D 2.20 | Drop.
At Pane vn Ree ee ere 3-34 4h 5, 300 1, 822 | 11-B |..... alee oS ea i 646 - 50 D 2.20 | Obstruction.
1 With cushion wheel.
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iW
THE FEDERAL
HE Federal Highway Act, approved by Presi-
dent Harding November 9, appropriates $75,-
000,000 as Federal aid for road construction in
the various States, and $15,000,000 for the construc-
tion of roads and trails in and adjacent to the national
forests. The sum of $25,000,000 is made available
immediately for Federal-aid roads and the balance of
$50,000,000 becomes available on January 1, 1922. Of
the forest road appropriation $5,000,000 becomes avail-
able immediately and $10,000,000 on July 1, 1922, the
beginning of the next fiscal year.
Under the terms of the act the Federal-aid money
will be available to the States for two years after the
close of the fiscal year for which the money is appro-
priated. This provision is made to apply to the money
appropriated under the previous act and its amend-
ment as well as to the new appropriation. According
to this provision the new appropriation must be ex-
Apportionment of Federal
HIGHWAY ACT.
pended by June 30, 1924, and the time allowed for the
expenditure of the balance of the previous appropri-
ation which remains in some States is extended to
June 30, 1923. The forest road appropriation is avail-
able until expended.
METHOD OF DISTRIBUTION SLIGHTLY CHANGED.
Not more than 24 per cent of the appropriation for
Federal aid may be deducted by the Secretary of Agri-
culture for the purpose of administering the provisions
of the act and for highway research.
The balance of the appropriation is to be apportioned
among the States in a manner similar to that which
was prescribed by the Federal aid act of 1916. The
three factors governing the distribution remain as
before—area, population, and mileage of rural delivery
and star routes. Dividing the net appropriation into
three parts one-third is to be apportioned in the ratio
aid under new and old acts.
New apportion- | Apportionment | Total apportion- | Total apportion- | Total apportion-
State. ment immedi- available ment under ment under ment under
ately available. Jan. 1, 1922. new act. old acts. new and old acts.
OANA 5 ENE eg ee, ha Se <n oe, care $517,806.89 | $1, 035,613.78 | $1, 553,420.67 | $5, 776, 552.58 $7, 329, 973. 25
ot Cay eqn 28 ae ca Bae atl eipente lac nein ites a da italia a ace 351, 093. 81 702, 187. 63 1) 053,281.44 | 3,771,351. 69 4) 824) 633. 13
Rate a Rese SNS a EO NS ot acl Th isgcab deokacsnal 418, 047. 40 836, 094. 80 1, 254,142.20 4,619, 929. 47 5, 874, O71. 67
Tv peice! pv pilgemet marsh nae etd, Seal etal he ain aaNet MN 820, 699. 51 1, 641, 399. 02 2) 462, 098. 53 8, 384, 354. 57 10, 846, 453. 10
OS TEE. EGE * SRE Ee cere ee cs eae Peeps eae 447, 058. 56 894,117. 13 1,341,175.69 4,780, 064. 14 6, 121, 239. 83
Herren otanct So,” NE Sg pe ee a ee oe ee ee eee 160, 299. 26 320, 598. 52 480, 897. 78 1, 689, 324. 70 2,170, 222. 48
CURT eae ei easy Je ese 2 ements tee ele in 121) 875. 00 243,750. 00 365, 625. 00 447, 654. 83 813, 279. 83
Bri eictr Ree RS a Sha reds ean Rekmnswee oe. 295, 608. 56 591, 217. 13 886, 825. 69 3, 150, 112. 48 4, 036, 938. 17
Pay hen gcsc nos ge ey mae ak ne ll Sia ae ie arene ae aE 665, 985. 86 1, 331, 971. 72 1, 997, 957. 58 7, 407, 578. 62 9, 405, 536. 20
RONMENT eB ake ak boda sida! ievenchepeas (6 556h-bece 312, 845. 56 625, 691. 12 938, 536. 68 3, 360, 388. 86 4) 298, 925. 54
es Le) NS SEE A a e. - SC, A Re Seo ae 1, 082, 093. 69 2, 164, 187. 38 3, 246, 281. 07 12, 024, 266. 97 15, 270, 548. 04
Ur LE Ly. a seeds te fe Oe al pai a aa deena 652, 951. 80 1, 305, 903. 61 1, 958, 855. 41 7, 415, 292. 61 9, 374, 148. 02
ieee Te ESS Sard apuchaxpuxienn spoons 700, 957. 58 1) 401, 915. 16 2) 102) 872. 74 7,939, 343,14 | 10, 042, 215. 88
rE. Taye ee pce ae el a ah ka ene 700, 760. 50 1) 401) 521. 01 2) 102} 281. 51 7, 895, 309. 07 9,997, 590. 58
eI to Rak Oud fa, kaa bee ovens ins 472, 392. 89 944,785. 79 1 417, 178. 68 5, 370, 064. 79 | 6, 787, 243. 47
|
ener I tas es od abe Rlactebieed Brac seh hoes 332, 329. 88 664, 659. 76 996,989.64} 3, 742, 524.57 | 4,739, 514. 21
VET 7 olla as 1 2 alg a i RR hl Al elle ei aa ea 231, 720. 08 463, 440. 17 695,160.25 | 2,645, 963. 57 | 3, 341, 123, 82
OS AT NE ETSI IEE PRE SS TP OR oe TORRY eR CE ed 213, 543. 00 427, 086. OL 640, 629. 01 2) 390, 749, 07 3, 031, 378. 08
DL ae se <span ie haa ape Seale alee eae sea 365, 392. 01 730, 784. 03 1, 096, 176. 04 4 052, 565. 09 | 5, 148, 741. 13
Bee IE or a rao ction nbd dun ct Sm anal des feo er oeseny bes 749, 844. 14 1, 499, 688. 29 2) 249, 532. 43 7,961, 295.55 | 10, 210, $27.98
i
Ce AGT Sok RY ENE ERE se oe a ey ee 707, 865. 69 1, 415, 731. 38 2, 123, 597. 07 7, 815, 383. 02 | 9, 938, 980. 09
PT eee ie ee ae aR i a ell elec ya 431, 635. 41 863, 270. 81 1, 294’ 906. 22 4) 951, 542. 29 6, 246, 448. 51
ite aee ON nk ee oe cere cee pste sb Rae biylns bs 816, 042. 87 1, 632, 085. 75 2) 448,128.62 | 9, 322,075.71 | ‘11,770, 204. 33
Ce ete ae eS eeaiieee ala ples > gl tel laden lila erent espana 515, 628. 61 1) 031; 257. 21 1) 546, 885. 82 5, 498, 827. 31 | 7, 045, 713. 13
Med EME Nhs ccd, ova ca dig «andy Revie cas «<5 20 dedckies: 527, 063. 17 1, 054, 126. 33 1, 581, 189. 50 5, 866, 761. 66 7, 447, 951. 16
CAA og os ee ee ee 317, 812. 26 635, 624. 52 953,436.78 | 3, 527, 276.18 4, 480, 712. 96
New Hampshire : 121, 875. 00 243, 750. 00 365,625.00 | 1,143,088. 99 1 508, 713. 99
a rit AR oe 6 fe al, 0 a5 5 fe 25 ov du east cassis sets 314, 290. 32 628, 580. 63 942, 870. 95 3, 265, 299. 02 4) 208, 169. 97
INS a a Ta a cn oi ae A ip il en 396, 607. 78 793, 215. 56 1, 189) 823. 34 4, 389, 794. 61 5, 579, 617. 95
~ New York 1, 232, 149. 32 2, 464, 298. 65 3, 696, 447. 97 13, 688, 801. 67 17) 385, 249. 64
North Carolina 569, 777. 97 1, 139, 555. 93 1, 709,333.90 | 6, 270, 690. 68 7, 980, 024. 58
North Dakota 388, 238. 14 776, 476. 28 1, 164, 714. 42 4, 222) 487. 70 5, 387, 202. 12
Weaec: 941, O01. 35 1, 882, 002. 70 2) 823,004.05 | 10, 202, 947. 71 13, 025, 951. 76
Oklahoma 584, 113.15 1, 168, 226. 29 1, 752, 339. 44 6, 338, 245. 60 8; 090, 585. 04
CONST Se Lo ie a Ae a alee é 394, 221.30 788, 442. 60 1) 182) 663. 90 4, 332, 178. 26 5, 514, 842. 16
od = Woe SE liad Ea ta aa all i arabe oa ea 1, 132, 984. 66 2, 265, 969. 31 3, 398, 953. 97 12, 632, 644. 29 16, 031, 598. 26
7 Se, Cl eaeeaing ai a ” 121) 875. 00 "243, 750. 00 | ” 365, 625. 00 ” 641; 166. 13 1 006, 791. 13
South Carolina 353, 745.78 707,491.56 | 1, 061, 237.34 3, 946, 617. 50 | 5, 007, 854. 84
South Dakota... 401, 353. 44 802; 706. 87 1, 204, 060. 31 4) 452) 883. 04 | 5, 656, 943. 35
ES Cte oS Be 8S fe noes Notes een aee eee 549, 230. 75 1, 098, 461. 49 1) 647, 692. 24 6, 228, 137. 98 | 7, 875, 830. 22
co, a =e eehepapamgls AE nee cl cape pe ete a 1,475, 057. 47 2,950, 114. 94 4,425,172.21 | 16, 100, 404. 77 20, 525, 577.18
Bea os aight set (sce osha sss eh, | 7283) 139. 07 ” 566, 278. 14 ” 849, 417. 21 3, 117, 206.38 3, 966, 623. 59
EAS USE ee aii 8 SR ot al i ial SE eee nee a 121, 875. 00 243,750. 00 365, 625. 00 1) 242’ 103. 73 1, 607, 728. 73
STEERS Pe foe SCS Sige, Ne nig posal eecen tpt mst - tenet | 485, 609. 49 971, 218. 98 1, 456, 828. 47 5, 451, 730. 28 6, 908, 558. 75
CE A ented I oe IS ih oil eae 367, 903. 26 735,806.51 | 1,103, 709.77 | 3, 971, 675.83 5, 075, 385. 60
“SCRE Sh NA" ie 5 ea i, all aa a oa SS 267, 453, 26 534, 906. 51 802,359.77 | 2,922, 504. 45 3, 724, 864, 22
ied Sy pa REE | NS tide EASY oy 8 631, 605. 29 1, 263,210.57 —:1, 894, 815. 86 7, 004, 280. 67 8, 899, 096. 53
Ph ae i ae el i SS Soa enn a 311, 539. 21 623, 078. 42 934, 617. 63 3, 378, 558. 17 4,313, 175. 80
ee a re so re Rg ca pace ne kor anagee te | 24,375,000.00| 48, 750,000.00 | 73, 125,000.00 | 266, 750,000.00 | 339, 875, 000. 00
18
which each of these factors in each State bears to their
total for the United States.
A new provision is that no State shall receive less
than one-half of one per cent of the year’s appropria-
tion. This stipulation will increase the amount which
would otherwise be received by 4 of the smaller States—
Delaware, New Hampshire, Rhode Island, and Ver-
mont.
THE APPORTIONMENT TO THE STATES.
After deducting the administrative allowance the
amount available for immediate apportionment is $24,-
375,000; that which becomes available on January 1
is $48,750,000 making a total of $73,125,000. The
apportionment of these sums to the several States and
the amounts apportioned under the previous acts are
given in the table.
UNITED STATES’ SHARE LIMITED TO 50 PER CENT EXCEPT
IN PUBLIC LAND STATES.
The participation of the United States in any one
road project is limited to 50 per cent of the total esti-
mated cost except in those States containing unap-
propriated public lands in excess of 5 per cent of all
lands in the State. For these States the special provi-
sion is made that the Government may participate to
the extent of 50 per cent plus a percentage of the total
estimated cost equal to one-half of the percentage
which the area of the public lands bears to the total
of the State. As a general rule the Governments par-
ticipation is limited to $20,000 per mile, but for the
public-land States this amount may be increased in
proportion to the increased percentage of Federal aid
authorized. The provisions with respect to these
States are made to apply to all unobligated funds ap-
propriated by the previous acts and also to payments
for approved projects upon which actual construction
had not begun June 30, last. The States which
benefit from these provisions are given in the table
below, together with the maximum limit of Govern-
ment participation allowed by the act.
Proportion of cost of projects to be paid by Government.
Paid by || Paid by
State Govern. |) State. | Govern-
ment. | ment.
|
ON Viste eee en oe Be Ae 61.11 | Nevada ...ce: eee is ke 87. 23
California ......... Titde RIG aera 57, of koNew Mexico 2et-9.5. <<. 61.51
olgnadG 4 aceer ks” >. ena 56. 13 *1) OPegon. = Ses aes foes ee ee 61. 14
Tdahosteey a eet suk re 5S O24 tals say hee ee eee a 74. 85
MOnUERG =...) See Ze ee cs De Wyoming. 08 Pees 752 ee 64, 65
FEDERAL FUNDS MUST BE MATCHED BY FUNDS UNDER
STATE CONTROL.
The funds to match the Government’s contribution
may be raised by the States or by any political or other
subdivision of the States, but if the funds of a country
or other local subdivision are to be used the new act
requires that they shall be paced under the direct con-
trol of the State highway department. No project is
to be approved in any State until the State has made
provision for the money required to match the State’s
share of the Federal appropriation and to maintain the
roads built with the joint fund, except that where the
laws of the State will not permit it to make such provi-
sion, the Secretary of Agriculture may continue to
approve projects for three years.
MONEY TO BE SPENT ON A CONNECTED SYSTEM.
The new appropriation is to be expended upon a
definite connected system of highways in each State
limited in extent to 7.per cent of the total mileage of
highways in the State. This system is to be divided
into two parts; the first, to include the more important
roads which are to be known as the primary or inter-
state highways, is to contain not more than three-sey-
enths of the mileage in the system. The second part
will include the secondary or intercounty highways
which will make up the balance of the system.
These systems are to be designated by the State
highway departments, but the Secretary of Agriculture
is given authority to require modifications or revisions
of the systems as selected. Until the States have had
an opportunity to select their systems the Secretary
will continue to approve new projects submitted if there
is ground for reaonable anticipation that the projects
submitted will be come a part of the system when it is
selected.
When a State has made provision for the completion
and maintenance of a system equal to 7 per cent of its
total highway mileage the act provides that an addition —
may be made to the mileage of the primary and sec-
ondary systems which will give such States finally a
system which will include more than 7 per cent of their
total road mileage.
The act contemplates that the primary or interstate
system and the secondary or intercounty system will |
be built up concurrently. One of its sections pro-
vides that not more than 60 per cent of the Federal aid
allotted to a State may be expended upon the inter-
state system except with the joint approval of the State |
highway department and the Secretary of Agriculture.
TYPE AND WIDTH REQUIREMENTS.
New phraseology is introduced into the bill in the
section which defines the requisite character of the
Federal aid roads. Instead of the term “substantial”
used in the first act the new act requires explicitly that
only durable types of surface and kinds of material
shall be adopted as will meet the existing and probable
future traffic needs and conditions, consideration being
given to peculiar local conditions.
This provision will not alter the policy heretofore —
followed by the Department of Agriculture. Its effect
is to strengthen the position wisely taken by the Secre-
FR
2
TT SES
lal a a te A i i el ele ener ee ein intial Ree al
iM,
tary several years ago in the construction which he
placed upon.the word “substantial” in the previous act.
An entirely new provision, however, is contained in
the requirement as to width. After stating in general
terms that the highways to be constructed hereafter
must have right of way and surface of adequate width,
the act lays down the definition of adequacy for the
surface by requiring that it shall not be less than 18
feet wide. Exceptions to this rule may be made if, in
the opinion of the Secretary of Agriculture, it is im-
practicable to construct an 18-foot pavement by reason
of physical conditions, excessive costs, probable traffic
requirements, or legal obstacles.
HEAVY PENALTY FOR FAILURE TO MAINTAIN.
In harmony with the spirit of President Harding’s
first message to Congress, in which he deprecated the
failure to give proper attention to the roads after the
construction is completed so as to keep them con-
stantly in condition to render service, the new act lays
a heavy penalty upon failure to maintain the roads
which are to be constructed under it. It defines
“maintenance”’ in its broadest sense as “the constant
making of needed repairs to preserve a smooth-surfaced
highway.” To insure that each highway aided by the
Government will receive that kind of maintenance it
provides that the Secretary of Agriculture shall serve
notice upon any State which allows a road to suffer for
lack of maintenance. If within 90 days after the notice
is served the proper attention has not been given to the
road, the Secretary is authorized to proceed to maintain
it himself and to charge the cost against the Federal
funds allotted to the State. What is more, he is
ordered to refuse to approve any other project in the
State until the amount spent for maintenance of the
project in question has been reimbursed by the State.
When the money is paid back it is not to be returned to
the State’s allotment of the appropriation, but is to be
reapportioned among all the States, so that the de-
linquent State will lose all but a small portion.
THE TERMS OF THE ACT.
The terms of the act are as follows:
AN ACT Toamend the Act entitled * An Act to provide that the United States shall
aid the States in the construction of rural post roads, and for other purposes,’
approved July 11, 1916, as amended and supplemented, and for other purposes.
Be it enacted by the Senate and House of Representatives of the.
United States of America in Congress assembi ed, That this Act may be
cited as the Federal Highway Act.
Sec. 2. That, when used in this Act, unless the context indicates
otherwise—
The term ‘‘Federal Aid Act” means the Act entitled ‘‘An Act to
provide that the United States shall aid the States in the construc-
tion of rural post roads, and for other purposes,’’ approved July 11,
1916, as amended by sections 5 and 6 of an Act entitled ‘‘An Act
making appropriations for the service of the Post Office Department
for the fiscal year ending June 30, 1920, and for other purposes,”
approved February 28, 1919, and all other Acts amendatory thereof
or supplementary thereto. ; ‘
The term ‘“‘highway” includes rights of way, bridges, drainage
structures, signs, guard rails, and protective structures in connec-
tion with highways, but shall not include any highway or street in
a municipality having a population of two thousand five hundred
or more as shown by the last available census, except that portion
of any such highway or street along which within a distance of one
mile the houses average more than two hundred feet apart.
The term ‘‘State highway department” includes any State depart-
ment, commission, board, or official having adequate powers and
suitably equipped and organized to discharge to the satisfaction of
the Secretary of Agriculture the duties herein required.
The term ‘‘maintenance” means the constant making of needed
repairs to preserve a smooth-surfaced highway.
The term ‘‘construction” means the supervising, inspecting, actual
building, and all expenses incidental to the construction of a highway
except locating, surveying, mapping, and costs of rights of way.
The term “‘reconstruction” means a widening or a rebuilding of
the highway or any portion thereof to make it a continuous road, and
of sufficient width and strength to care adequately for traffic needs.
The term “‘forest roads’’ means roads wholly or partly within or
adjacent to and serving the national forests.
The term ‘‘State funds” includes for the purposes of this Act,
funds raised under the authority of the State, or any political or
other subdivision thereof, and made available for expenditure under
the direct control of the State highway department.
Src. 3. All powers and duties of the Council of National Defense
under the Act entitled ‘‘An Act making appropriations for the
support of the Army for the fiscal year ending June 30, 1917, and for
other purposes,’”’ approved August 29, 1916, in relation to highway
or highway transport, are hereby transferred to the Secretary of
Agriculture, and the Council of National Defense is directed to turn
over to the Secretary of Agriculture the equipment, material, supplies,
papers, maps, and documents utilized in the exercise of such powers.
The powers and duties of agencies dealing with highways in the
national parks or in military or naval reservations under the control
of the United States Army or Navy, or with highways used prin-
cipally for military or naval purposes, shall not be taken over by the
Secretary of Agriculture, but such highways shall remain under the
control and jurisdiction of such agencies.
The Secretary of Agriculture is authorized to cooperate with the
State highway departments, and with the Department of the Interior
in the construction of public highways within Indian reservations,
and to pay the amount assumed therefor from the funds allotted or
apportioned under this Act to the State wherein the reservation is
located.
Src. 4. That the Secretary of Agriculture shall establish an
accounting division, which shall devise and install a proper method
of keeping the accounts.
Src. 5. That the Secretary of War be, and he is hereby, authorized
and directed to transfer to the Secretary of Agriculture, upon his
request, all war material, equipment, and supplies now or herein-
after declared surplus from stock now on hand and not needed for
the purposes of the War Department but suitable for use in the
improvement of highways, and that the same shall be distributed
among the highway departments of the several States to be used in
the construction, reconstruction, and maintenance of highways,
such distribution to be upon the same basis as that hereinafter
provided for in this Act in the distribution of Federal-aid fund:
Provided, That the Secretary of Agriculture, in his discretion, may
reserve from such distribution not to exceed 10 per centum of such
material, equipment, and supplies for use in the construction,
reconstruction, and maintenance of national forest roads or other
roads constructed, reconstructed, or maintained under his direct
supervision.
Sxc. 6, That in approving projects to receive Federal aid under
the provisions of this Act the Secretary of Agriculture shall give
preference to such projects as will expedite the completion of an
adequate and connected system of highways, interstate in character.
Before any projects are approved in any State, such State, through
its State highway department, shall select or designate a system of
highways not to exceed 7 per centum of the total highway mileage
of such State as shown by the records of the State highway depart-
ment at the time of the passage of this Act. i
Upon this system all Federal-aid apportionments shall be
expended. : a ;
HERS which may receive Federal aid shall be divided into
two classes, one of which shall be known as primary or interstate
highways, and shall not exceed three-sevenths of the total mileage
which may receive Federal aid, and the other which shall connect
or correlate therewith and be known as secondary or intercounty
highways, and shall consist of the remainder of the mileage which
may recelve Federal aid. ‘ ;
The Secretary of Agriculture shall have authority to approve in
whole or in part the systems as designated or to require modifica-
tions or revisions thereof: Provided, That the States shall submit
to the Secretary of Agriculture for his approval any proposed revi-
sions of the designated systems of highways above provided for.
20) | ; ;
Not more than 60 per centum of all Federal aid allotted to any
State shall be expended upon the primary or interstate highways
until provision has been made for the improvement of the entire
system of such highways: Provided, That with the approval of any
State highway department the Secretary of Agriculture may ap-
prove the expenditure of more than 60 per centum of the Federal
aid apportioned to such State upon the primary or interstate high-
ways in such State. ‘ ,
The Secretary of Agriculture may approve projects submitted by
the State highway departments prior to the selection, designation,
and approval of the system of Federal-aid highways herein provided
for if he may reasonably anticipate that such projects will become a
part of such system.
Whenever provision has been made by any State for the comple-
tion and maintenance of a system of primary or interstate and
secondary or inter-county highways equal to 7 per centum of the
total mileage of such State, as required by this act, said State,
through its State highway department, by and with the approval
of the Secretary of Agriculture, is hereby authorized to add to the
mileage of primary or interstate and secondary or intercounty
svstems as funds become available for the construction and main-
tenance of such additional mileage.
Src. 7. That before any project shall be approved by the Secre-
tary of Agriculture for any State such State shall make provisions
for State funds required each year of such States by this act for
construction, reconstruction, and maintenance of all Federal-aid
highways within the State, which funds shall be under the direct
control of the State highway department. ;
Src. 8. That only such durable types of surface and kinds of ma-
terials shall be adopted for the construction and reconstruction of
any highway which is a part of the primary or interstate and second-
ary or intercounty systems as will adequately meet the existing and
probable future traffic needs and conditions thereon. The Secre-
tary of Agriculture shall approve the types and width of construc-
tion and reconstruction .and the character of improvement, repair,
and maintenance in each case, consideration heing given to the
type and character which shall be best suited for each locality and
to the probable character and extent of the future traffic.
Sec. 9. That all highways constructed or reconstructed under the
provisions of this act shall be free from tolls of all kinds.
That all highways in the primary or interstate system constructed
after the passage of this act shall have a right of way of ample width
and a wearing surface of an adequate width which shall not be less
than 18 feet, unless, in the opinion of the Secretary of Agriculture,
it is rendered impracticable by physical conditions, excessive costs,
probable traffic requirements, or legal obstacles. ’
Src. 10. That when any State shall have met the requirements of
this act, the Secretary of the Treasury, upon receipt of certification
from the governor of such State to such effect, approved hy the
Secretary of Agriculture, shall immediately make available to such
State, for the purpose set forth in this act, the sum apportioned to
such State as herein provided.
Src. 1]. That any State having complied with the provisions of
this act, and desiring to avail itself of the benefits thereof, shall by
its State highway department submit to the Secretary of Agricul-
ture project statements setting forth proposed construction or recon-
struction of any primary or interstate, or secondary or intercounty
highway therein. If the Secretary of Agriculture approve the
project, the State highway department shall furnish to him such
surveys, plans, specifications, and estimates therefor as he may re-
quire; items included for engineering, inspection, and unforseen
contingencies shall not exceed 10 per centum of the total estimated
cost of its construction. That when the Secretary of Agriculture
approves such surveys, plans, specifications, and estimates, he shall
notify the State highway department and immediately certify the
fact to the Secretary of the Treasury. The Secretary of the Treasury
shall thereupon set aside the share of the United States payable
under this act on account of such projects, which shall not exceed
50 per centum of the total estimated cost thereof, except that in the
case of any State containing unappropriated public lands exceed-
ing 5 per centum of the total area of all lands in the State, the share
of the United States payable under this act on account of such
projects shall not exceed 50 per centum of the total estimated cost
thereof plus a percentage of such estimated cost equal to one-half
of the percentage. which the area of the unappropriated public
lands in such State bears to the total area of such State: Provided,
That the limitation of payments not to exceed $20,000 per mile,
under existing law, which the Secretary of Agriculture may make
be, and the same is hereby, increased in proportion to the increased
percentage of Federal aid authorized by this section: Provided
further, That these provisions relative to the public-land States
shall apply to all unobligated or unmatched funds appropriated by
the Federal aid act and payment for approved projects upon which
actual building construction work had not begun on the 30th day
of June, 1921. ¢
Sec. 12. That the construction and reconstruction of the highways
or parts of highways under the provisions of this act, and all con-
tracts, plans, specifications, and estimates relating thereto, shall be
undertaken by the State highway departments subject to the ap-
proval of the Secretary of Agriculture. The construction and re-
construction work and labor in each State shall be done in accord-
ance with its laws and under the direct supervision of the State
highway department, subject to the inspection and approval of the
Secretary of Agriculture and in accordance with the rules and
regulations pursuant to this act.
Src. 13. That when the Secretary of Agriculture shall find that
any project approved by him has been constructed or reconstructed
in compliance with said plans and specifications, he shall cause to
be paid to the proper authorities of said State the amount set aside
for said project.
That the Secretary of Agriculture may, in his discretion, from time
to time, make payments on such construction or reconstruction as
the work progresses, but these payments, including previous pay-
ments, if any, shall not be more than the United States pro rata
part of the value of the labor and materials which have been actually
put into such construction or reconstruction in conformity to said
plans and specifications. The Secretary of Agriculture and the
State highway department of each State may jointly determine at
what time and in what amounts payments as work progresses shall
be made under this Act.
Such payments shall be made by the Secretary of the Treasury,
on warrants drawn by the Secretary of Agriculture, to such official
or officials or depository as may be designated by the State highway
department and authorized under the laws of the State to receive
public funds of the State.
Src. 14. That should any State fail to maintain any highway
within its boundaries after construction or reconstruction under
the provisions of this Act, the Secretary of Agriculture shall then
serve notice upon the State highway department of that fact, and
if within ninety days after receipt of such notice said highway has
not been placed in proper condition of maintenance, the Secretary
of Agriculture shall proceed immediately to have such highway
placed in.a proper condition of'maintenance and charge the cost
thereof against the Federal funds allotted to such State, and shall
refuse to approve any other project in such State, except as herein-
after provided.
Upon the reimbursement by the State of the amount expended
by the Federal Government for such maintenance, said amount
shall be paid into the Federal highway fund for reapportionment
among all the States for the constructon of roads under this Act,
and the Secretary of Agriculture shall then approve further projects
submitted by the State as in this Act provided.
Whenever it shall become necessary for the Secretary of Agricul-
ture under the provisions of this Act to place any highway in a proper
condition of maintenance the Secretary of Agriculture shall contract
with some responsible party or parties for doing such work: Provided,
however, That in case he is not able to secure a satisfactory contract
he may purchase, lease, hire, or otherwise obtain all necessary
supplies, equipment, and labor, and may operate and maintain
such motor and other equipment and facilities as in his judgment
are necessary for the proper and efficient performance of his functions.
Sec. 15. That within two years after this Act takes effect the
Secretary shall prerery, publish, and distribute a map showing
the highways and forest roads that have been selected and approved
as a part of the primary or interstate, and the secondary or inter-
county systems, and at least annually thereafter shall publish sup-
plementary maps showing his program and the progress made in
selection, construction, and reconstruction.
Sec. 16. That for the purpose of this Act the consent of the United
States is hereby given to any railroad or canal company to convey
to the highway department of any State any part of its right of way
a other property in that State acquired by grant from the United
tates.
Src. 17. That if the Secretary of Agriculture determines that any
part of the public lands or reservations of the United States is reason-
ably necessary for the right of way of any highway or forest road or
as a source of materials for the construction or maintenance of any
such highway or forest road adjacent to such lands or reservations,
the Secretary of Agriculture shall file with the Secretary of the
department supervising the administration of such land or reserva-
tion, a map showing the portion of such lands or reservations which
it is desired to appropriate.
If within a period of four months after such filing the said Secre-
tary shall not have certified to the Secretary of Agriculture that the
proposed appropriation of such land or material is contrary to the
public interest or inconsistent with the purposes for. which such
land or materials have been reserved, or shall have agreed to the
appropriation and transfer under conditions which he deems neces-
sary for the adequate protection and utilization of the reserve,
then such land and materials may be appropriated and transferred
21
to the State highway department for such purposes and subject to
the conditions so specified.
If at any time the need for any such lands or materials for such
‘purposes shall no longer exist, notice of the fact shall be given by
the State highway department to the Secretary of Agriculture,
and such lands or materials shall immediately revert to the control
of the Secretary of the department from which they had been ap-
propriated.
Src. 18. That the Secretary of Agriculture shall prescribe and
promulgate all needful rules and regulations for the carrying out of
the provisions of this Act, including such recommendations to- the
Congress and the State highway departments as he may deem neces-
sary for preserving and protecting the highways and insuring the
safety of traffic thereon.
Src. 19. That on or before the first Monday in December of each
year the Secretary of Agriculture shall make a report to Congress,
which shall include a detailed statement of the work done, the
status of each project undertaken, the allocation of appropriations,
an itemized statement of the expenditures and receipts during the
preceding fiscal year under this Act, an itemized statement of the
traveling and other expenses, including a list of employees, their
duties, salaries, and traveling expenses, if any, and his recommenda-
tions, if any, for new legislation amending or supplementing this
Act. The Secretary of Agriculture shall also make such special
reports as Congress may request.
Sec. 20. That for the purpose of carrying ‘out the provisions of
this Act there is hereby appropriated, out of the moneys in the
Treasury not otherwise appropriated, $75,000,000 for the fiscal year
ending June 30, 1922, $25,000,000 of which shall become imme-
diately available and $50,000,000 of which shall become available
January 1, 1922.
Src. 21. That so much, not to exceed 24 per centum, of all
moneys hereby or hereafter appropriated for expenditure under the
provisions of this Act, as the Secretary of Agriculture may deem
necessary for administering the provisions of this Act and for carry-
ing on necessary highway research and investigational studies inde-
pendently or in cooperation with the State highway departments
and other research agencies, and for publishing the results thereof,
shall be deducted for such purposes, available until expended.
Within sixty days after the close of each fiscal year the Secretary
of Agriculture shall determine what part, if any, of the sums thereto-
fore deducted for such purposes will not be needed and apportion
such part, if any, for the fiscal year then current in the same manner
and on the same basis as are other amounts authorized by this Act
apportioned among all the States, and shall certify such apportion-
ment to the Secretary of the Treasury and to the State highway
departments.
The Secretary of Agriculture, after making the deduction author-
ized by this section, shall apportion the remainder of the appropria-
tion made for expenditure under the provision of the Act for the
fiscal year among the several States in the following manner: One-
third in the ratio which the area of each State bears to the total
area of all the States; one-third in the ratio which the population
of each State bears to the total population of all the States, as shown
by the latest available Federal census; one-third in the ratio which
the mileage of rural delivery routes and star routes in each State
bears to the total mileage of rural delivery and star routes in all
the States at the close of the next preceding fiscal year, as shown by
certificate of the Postmaster General, which he is directed to make
and furnish annually to the Secretary of Agriculture: Provided,
That no State shall receive less than one-half of 1 per centum otf
each year’s allotment. All moneys herein or hereafter appropriated
for expenditure under the provisions of this Act shall be available
until the close of the second succeeding fiscal year for which appor-
tionment was made: Provided further, That any sums apportioned to
any State under the provisions of the Act entitled ‘“‘An Act to pro-
vide that the United States shall aid the States in the construction
of rural post roads, and for other purposes,’”’ approved July 11, 1916,
and all Acts amendatory thereof and supplemental thereto, shall be
available for expenditure in that State for the purpose set forth in
such Acts until two years after the close of the respective fiscal years
for which any such sums become available, and any amount so
apportioned remaining unexpended at the end of the period during
which it is available for expenditure under the terms of such Acts
shall be reapportioned according to the provisions of the Act entitled
‘‘An Act to provide that the United States shall aid the States in the
construction of rural post roads, and for other purposes,’’ approved
July 11, 1916: And provided further, That any amount apportioned
under the provisions of this Act unexpended at the end of the period
during which it is available for expenditure under the terms of this
section shall be reapportioned within sixty days thereafter to all
the States in the same manner and on the same basis, and certified
to the Secretary of the Treasury and the State highway departments
in the same way as if it were being apportioned under this Act for
the first time.
Sec. 22. That within sixty days after the approval of this Act the
Secretary of Agriculture shall certify to the Secretary of the Treasury
and to each of the State highway departments the sum he has esti-
mated to be deducted for administering the provisions of this Act
and the sums which he has apportioned to each State for the fiscal
year ending June 30, 1922, and on or before January 20 next pre-
ceding the commencement of each succeeding fiscal year, and shall
make like certificates for each fiscal year.
Sec. 23. That out of the moneys in the Treasury not otherwise
appropriated, there is hereby appropriated for the survey, con-
struction, reconstruction, and maintenance of forest roads and trails
the sum of $5,000,000 for the fiscal year ending June 30, 1922, avail-
able immediately and until expended, and $10,000,000 for the fiscal
year ending June 30, 1923, available until expended.
(a) Fifty per centum, but not to exceed $3,000,000 for any one
fiscal year, of the appropriation made or that may hereafter be made
for expenditure under the provisions of this section shall be expended
under the direct supervision of the Secretary of Agriculture in the
survey, construction, reconstruction, and maintenance of roads
and trails of primary importance for the protection, administration,
and utilization of the national forests, or, when necessary, for the
use and development of resources upon which communities within
or adjacent to the national forests are dependent, and shall be appor-
tioned among the several States, Alaska, and Porto Rico by the
Secretary of Agriculture, according to the relative needs of the
various national forests, taking into consideration the existing
transportation facilities, value of timber, or other resources served,
relative fire danger, and comparative difficulties of road and trail
construction.
The balance of such appropriations shall be expended by the
Secretary of Agriculture in the survey, construction, reconstruction,
and maintenance of forest roads of primary importance to the State,
counties, or communities within, adjoining, or adjacent to the
national forests, and shall be prorated and apportioned by the
Secretary of Agriculture for expenditures in the several States,
Alaska, and Porto Rico, according to the area and value of the land
owned by the Government within the national forests therein as
determined by the Secretary of Agriculture from such information,
investigation, sources, and departments as the Secretary of Agri-
culture may deem most accurate.
(6b) Cooperation of Territories, States, and civil subdivisions
thereof may be accepted but shall not be required by the Secretary
of Agriculture.
(c) The Secretary of Agriculture may enter into contracts with
any Territory, State, or civil subdivision thereof for the construction,
reconstruction, or maintenance of any forest road or trail or part
thereof.
(d) Construction work on forest roads or trails estimated to cost
$5,000 or more per mile, exclusive of bridges, shall be advertised
and let to contract.
If such estimated cost is less than $5,000 per mile, or if after
proper advertising no acceptable bid is received, or the bids are
deemed excessive, the work may be done by the Secretary of Agri-
culture on his own account; and for such purpose the Secretary of
Agriculture may purchase, lease, hire, rent, or otherwise obtain
all necessary supplies, materials, tools, equipment, and facilities
required to perform the work.
The appropriation made in this section or that may hereafter be
made for expenditure under the provisions of this section may be
expended for the purpose herein authorized and for the payment
of wages, salaries, and other expenses for help employed in con-
nection with such work. i
Src. 24. That in any State where the existing constitution or
laws will not permit the State to provide revenues for the con-
struction, reconstruction, or maintenance of highways, the Secretary
of Agriculture shall continue to approve projects for said State
until three years after the passage of this Act, if he shall find that
said State has complied with the provisions of this Act in so far as
its existing constitution and laws will permit. erry
Sec. 25. That if any provision of this Act, or the application
thereof to any person or circumstances, shall be held invalid, the
validity of the remainder of the Act and of the application of such
provision to other persons or circumstances shall not be affected
thereby. : : :
Src. 26. That all Acts or parts of Acts in any way inconsistent
with the provisions of this Act are hereby repealed, and this Act
shall take effect on its passage.
F. H. Guetr,
Speaker of the House of Representatives.
CALVIN COOLIDGE,
Vice President of the United States and
President of the Senate.
Approved November 9, 1921.
Warren G. HArpIna.
22
CENTRAL-PLANT-MIXED CONCRETE
TESTED FOR MAXIMUM SAFE HAUL
HE tests were made primarily for
the purpose of determining the 2
- probable safe maximum length
of haul for central-plant-mixed con-
crete to be used in the construction of
a proposed experimental concrete road
near Washington, D. C. The results
are interesting, however, in a general
way in that they show the relative
strength and consistency of gravel con-
crete when hauled in a wet batch and 0
tested at various periods of time up
to three hours after initial mixing. The
experiment was made in the following
manner: Two batches of concrete in the
proportion of 1:14:3 were mixed in a
stationary concrete mixing plant of 1
cubic yard capacity. Potomac River
sand and gravel were used as aggre-
gates, the latter graded from 14 inches
to + inch in size. An effort was made
to mix each batch to a consistency
having a slump of about 2 inches as
measured by the truncated cone.
After mixing, the concrete was
dumped directly into a 3-ton truck,
the wooden body of which had pre-
viously been divided into six compartments by means of
tranverse boards equally spaced and each about 1 foot
high. The concrete in the two batches was dumped so
that each of these six compartments contained approxi-
mately one-third of a cubic yard. After making aslump
test and casting 6 inch by 12 inch cylindrical specimens
for compression test, the truck was run for 30 minutes,
when the contents of the first compartment were sampled
for consistency and strength. The concrete in compart-
ment No. 1 was not dumped at this time but was sampled
in the truck, every effort being made to secure average
samples. The truck was then run to the Arlington Ex-
perimental Station, a distance of 3 miles, where the con-
tents of compartment No. 1 were dumped. Inasmuch
as a dump body was not available for this experiment it
was necessary to shovel out the concrete by hand. Its
consistency at this point, however, was such that it ceme
out readily and would probably have dumped easily from
a regulation dump body. After removing the concrete
from compartment No. 1, the truck was run about the
station roads for 15 minutes, returned to the starting
point and the contents of the second compartment de-
posited. Samples for both consistency and strength were
likewise taken of this material, after which the opera-
tion of driving 15 minutes, dumping and sampling was
repeated until all of the concrete had been deposited.
SLUMP INCHES
2000
CRUSHING STRENGTH
LBS. PER SQ. IN.
fo] fief sol ins | de fale |S [a
FEREEEEEEE EEE EEE
SoS aoe res sees
jeep Rese ~—
Sal a
SPouRgaSeReP Ne ase
ob be] lis |e] af ak | aa a ae
| 3
INTERVAL IN HOURS BETWEEN TIME OF INITIAL MIXING
pol elo EAN Ep a
RAE
AND TIME OF CASTING SPECIMENS
RESULT OF TESTS FOR CONSISTENCY AND CRUSHING STRENGTH OF CENTRAL-
PLANT-MIXED CONCRETE.
The concrete had been mixed 3 hours and 10 minutes
when the last section was removed. By this time it had
become so hard that it was necessary to break it up
with a pick. Up to section 6, however, it was possible
to remove the concrete with shovels, and, although
very dry, segregation had not become especially marked.
This may probably be accounted for by the fact that
the concrete was mixed fairly dry in the first place, the
initial slump being only about 2 inches. It has been
noted frequently that wet concrete will segregate more
quickly and pack more readily during hauling than dry
concrete.
STRENGTH NOT AFFECTED SO LONG AS CONCRETE IS
WORKABLE.
The results of the tests for consistency as well as the
28-day crushing strength tests are given in Table 1.
They are also shown in figure 1, in which the slump in
inches and the crushing strength in pounds per square
inch at 28 days are plotted against the length of haul
in hours. It will be noted that, whereas the concrete
became very dry after about one hour’s haul, the
strength of the cylinders prepared from the various
batches was about the same. In only one case was the
strength much below the general average of 3,500
pounds per square inch. This was noted in the case of
23
TABLE 1.—Results of tests central plant mixed concrete.
Crushing strength, |
Com- Total _| pounds per squareinch. |
part- |
rient elapsed | Slump.’ as? eae a=
number. | “me? |
; (1) (2) | Average. |
Hrs. min.| Inches.
() 15 2 3, 620 3,510 | 3, 565
1 45 1 3) 460 | 3,550 | 3,505
1 1 30 3 2, 670 2, 200m eee) 430% |
2 1 50 3 3, 510 2,960 3,235 |
3 | 2 10 i 3,820 | 3,580 3,700
4 2 25 4 3,110 | 3,550 | 3,330 |
5 2 45 ds 3,840 4,230 | 4,035
6 3 10 ts 3,300 | 3,870 ee $5385) |
i 1
' Test made at plant.
2 Time between initial mixing and sampling.
3 Test made with truncated cone 12 inches high and with top and bottom diam-
eters of 4 and 8 inches, respectively.
4 Tests made on 6-inch by 12-inch cylinders of 1:13:3 conerete at age of 28 days.
the cylinders made from the concrete in compartment
No. 1. Nothing in the appearance of the concrete at
the time these cylinders were cast would account for
the difference in strength. All of the specimens were
made as nearly as possible in accordance with the recom-
mended practice of the American Society for Testing
Materials for taking field specimens of concrete, but
as the concrete in the last three compartments was so
dry as to show practically no slump it was necessary to
use considerably more pressure in preparing the cylin-
ders representing these sections.
The appearance of the concrete during the experi-
ment would indicate that it could have been handled
by a concrete pavement finishing machine at any period
up to two hours after mixing. It became too dry for
hand finishing, however, 45 minutes after mixing.
Assuming that a wetter mixture would have segregated
more quickly, especially with a gravel aggregate, the
experiment indicates that the most practical way to
utilize the central mixing plant in concrete road con-
struction is in connection with a machine finisher. It
also indicates that so long as the concrete is workable
after a period of hauling, the strength will not be
affected.
As previously noted, this experiment was made sim-
ply in order to obtain some idea of the behavior of
certain aggregates when handled as central-plant-mixed
concrete. It is the intention of the Bureau of Public
Roads to make a somewhat extended investigation of
this subject in the near future, using a variety of aggre-
gates and consistencies.
(Continued from page 6.)
tire shown on the curve marked 39. In fact, the
cushioning they show against impact is not as good
as that shown by the dual solid tire equipment on
the regular solid wheel, in curve No. 41. Referring,
also, to the test results shown in figures 4 and 5, by
curves marked 11—A and 11-B, it will be seen that
there is no particular advantage in the cushion wheel.
The wheels tested do not seem to offer cushioning that
is of any practical advantage over the single solid-
tire equipment on the ordinary rigid wheel, a test
of which is shown in curve No. 11. These results are
not very surprising when considered in the light of
the factors which enter into impact forces. To secure
the proper strength and lateral rigidity, all parts of the
cushion wheels must be made rather heavy. This, of
course, adds to the value for mass in the impact
formulae and the addition is so great that it nearly or
completely overcomes the effect of the added rubber
cushion in the wheel. Under heavy loads, however,
they do tend to show a slight advantage over the regular
rigid-wheel equipment.
SOME SOLID AND CUSHION TIRES BETTER THAN CUSHION
WHEELS.
The cushion wheel constructed with the six rubber
cushions, tests of which are shown by the curves
marked 33—A in figures 2 and 3, shows considerably
more advantage than the other type of cushion wheel.
These wheels with the tires mounted on them showed
considerably more total static deflection than any other
type of equipment except the pneumatic tire, and their
construction was such that the weight of the wheel was
not unduly increased. Though these wheels were
rather flexible laterally no trouble was experienced in
the operation of the truck.
In the light of the tests on these particular cushion
wheels, it is seen that certain solid and cushion
tires offer considerably more cushioning than _ the
cushion wheel equipment. It should be remembered,
however, that these tests refer to the impact delivered
to the road surface and have no reference to the effect
of the impact or vibration on the truck itself. No
attempt was made to determine this; but several per-
sons riding on the truck seemed to observe less severe
shocks and vibration in the truck body.
The results presented in this and the former report
are given solely for the purpose of making a comparison
between the impact of trucks under different loads and
with different tire and wheel equipment, taking into
account the type of construction of the truck and its
speed. The values shown give an idea of the maximum
impact forces which may be expected under given
conditions of truck traffic. No attempt is made to
show the effect of these forces on different road surfaces.
This effect has been studied in another investigation,
a preliminary report of which has been made.’
INTERESTING FACTS ABOUT FOREST ROADS.
On the Klamath River road in California the average
curvature amounts to six complete circles to the mile.
Few tangents are as long as 200 feet. The contractor
found the cheapest method of delivering culvert pipe a
distance of 100 miles from the railroad to be by parcel post.
The Berthoud Pass road in Colorado crosses the Front
Range at an elevation of 11,300 feet. A steam shovel
was moved 15 miles under its own power up 15 per cent
grades to start work at the highest point.
1 Tests of Impacts on Pav ements by the Bureau of Public Roads, Public Roads,
October and November, 1921.
24
STATUS OF FEDERAL AID OGTOBER >l7172i
HAT the new Federal highway appropriation
will mean to the country can be judged by
the use to which the $275,000,000 previously
appropriated has been put. The report of the status of
this fund on October 31 shows that practically $200,-
000,000 had been put to work in projects which were
either entirely completed or under construction. The
exact amount was $199,823,427. -To match that
amount the States have appropriated $265,567,696,
making a total of $465,391,123.
The roads to be paid for by this money, if placed end
to end, would encircle the earth at the Equator and ex-
tend as far as from New York to San Francisco on the
second lap. The total mileage of roads under construc-
tion and completed was reported as 27,000 miles. Of
this mileage 9,555 miles was in projects which were en-
tirely completed and the contractors discharged. The
balance of 17,445 miles was in projects which were still
under construction, but which were 69 per cent com-
plete on October 31. In these projects there is the
equivalent of 12,000 miles of completed road, so that
the completed road to date totals over 21,000 miles, or
nearly enough to encircle the globe.
Prior to five years ago the Federal Government took
no active part in the road construction of the country.
To-day about one-half of all roads that are being built
are being aided by the Government financially, and the
construction is subject to the inspection and approval
of Federal engineers.
TABLE 1.—F nancial statement as of October 31, 1921.
| Federal aid Federal aid
Total in work Federal aid | Federalaid | in uncom- Amounts Balance
State | ad alah under con- available incom- | pleted work | Federal aid | Federal aid
ae | ment of struction and| for new pleted on projects paid earned
Federal aid. com- contracts, work.? under con- States, by States.
| pleted.1 struction.
Alabamatsse Aye See we thst) Ea ee Te $5,776, 552.58 | $2,740,986 | $3,035,567 | $1,916, 875 $824,111 | $1, 539, 411 $377, 464
ATZOnA ES Se eee SS 2 Jie BAe ACE Bey saegae 3, 771, 351. 69 2, 984, 862 786, 490 2, 629, 885 354, 977 1) 387, 725 1, 242° 160 ~
Ree OE ce =) RE 8 ae ne Opn, ne Cae ee. 4,619, 929. 47 3 3, 755, 468 864, 461 2,707, 875 i; 047, 593 i 673, 078 rls 034; 797
California: 15.4 ~ Tames... A Tey 8k pre es eae geet | 8, 384,354.57 | 46, 055, 398 2, 328, 956 3, 567, 240 2) 488) 158 2) 351, 478 1) 215, 762
GGlOTACO eee. Jee a | Soi ie Raa Ole ee ....| 4,780, 064.14 3,351, 641 1, 428, 423 2,424, 576 ” 927? 065 1) 921, 340 ” 503; 236
Connecticnte ..- eee 2 er ea) ere ae eee ee | 1,689, 324.70 1, 059, 823 629, 502 697, 366 362, 457 479, 267 218, 099
Delawarewes.. Seed Lee ge 8 ee RE OS FIP 447, 654. 83 447; 654 2 Siete 439, 554 8, 100 414, 022 25, 532
cities Re 9 ee Saimiri WS al chair ae Spey <> 3, 150, 112. 48 2, 715, 064 435, 048 1, 362; 508 1, 352, 556 600, 055 762, 453
She iit thes = 5 Sen gt oe | | ee ee hh ge Oe A gee 3 128 oe ED 7,407, 578.62 37,189, 839 217, 740 6 177, 719 ris 012; 120 5,317, 098 860, 621
LGN reer: Sone oc nim, © ec eee Oe War scene eS 3, 360, 388. 86 8 3,272, 145 88, 244 3, 030; 488 "O41? 657 2,332,307 698) 181
RN OISee ea. he eee tc Rj ohn eee tome ae ere eo Ee 12, 024, 266.97 | % 11,707,018 317, 249 11, 299, 195 407, 823 9, 182, 059 2, 117, 136
WnCiaN ak se os ho Sees Soin <2 eee es ae a 7,415, 292. 61 3 2,914, 125 4, 501, 168 2 291, 935 622, 190 2, 254, 141 37, 794
LOW ic ee se be eo ics, ERT ER oi eae oe I 7, 939, 343.14 7, 313, 329 626, 014 6 321; 129 992? 200 3, 935, 792 2, 385, 337
Warisass. ioe |. dau ts Soo os oa” TEE eee es ge ee et 7, 895, 309. 07 55, 718, 479 2, 176, 830 3, 956, 453 1,762) 026 3, 038, 079 918) 374
PCONCUCK VR. cP ae 2h in ee, eee Pes Ena e 5, 370, 064. 79 S, 678, 927 iy 691, 138 2, 595, 789 re 083, 138 2, 122, 253 473, 536
Towisiana S3.5.. $4 ooeet eet. eee en eee ee eee ee 38, 742, 524. 57 3, 643, 982 98, 543 3, 121,154 522, 828 2,712, 205 408, 949
Maine 2) oF fea ia ee pee ies cc DEN. eee et See Aa em 2, 645, 963. 57 2, 579, 528 66, 436 1, ” 938° 527 641, 001 995° 779 1; 0127 748
Maryland ocer eres seta. . (ot neee Serie cn et wy be ene Mace ee er eee 2° 390, 749.07 $2, 249) 349 141, 400 2 145, 616 103, 733 1 717, 162 "423° 454
Massachusetts: Sere Sia. Shee SS Ue ER eee eet 4) 052) 565. 09 2) 407, 847 1, 644, 718 2’ 109, 088 298, 759 1) 082’ 214 1, 026) 874
Michipan’ i). ee 382). eae wr Se TSAR re ec ie eae Om 7, 961, 295.55 5,480,018 | 2, 481,277 3, 937, 826 1, 542, 192 3, 493, 632 "444 194
MINSIOSOCE 2. #:\2:.. S38: Ses ee eee eee ee 7, 815, 383.02 | 7, 356, 120 459, 263 5, 967, 058 1,389, 062 5, 291, 604 675, 454
Mississippi 4,951, 542. 29 3, 448, 515 1, 503, 027 2’ 387, 099 1; 061, 416 1, 725, 962 661, 137
IMISSOUP Joe ce ck ence een tae 9, 322, 075. 71 4,951, 728 4,370, 348 3, 0547 675 re 897° 053 2,031,031 itp 023; 644
Montana. 8-2) et Se eerie bw See a se eee ene, See 5,498, 827.31 3, 823, 269 1, 675, 558 3 277, 147 546, 122 2 594, 649 682? 498
INGDIASKA >< Sc 0et7. | aN eine tee Oe oe See ce See 5, 866, 761.66 6 3, 881, 287 1, 985, 475 . 641) 145 240; 142 2. 627, 594 1, 013, 551
Le E ep PON AOL eh PY Ratt Aes Yeo a Af 3, 527,276.18 | 1,449,213 2, 078, 063 1,351, 077 98, 136 1,019, 465 331, 612
New Hampshirestscc2 otros ee eee ee ne ae | 1,143, 088.99 | © 31, 102, 480 40, 609 1,001, 010 101, 470 ” $61) 007 140, 003
INewijersey' 65.0 At. < AES toes een. : ate i Meee | 3,265, 299.02 1, 746, 819 1, 518, 480 1, 448, 867 297, 952 1, 014; 133 434) 734
Now: Moxieoi:2 Sc rece ocr ca een es ee eee | 4,389, 794. 61 2,349, 347 2, 040, 448 1, 622, 365 726, 982 1) 493; 287 129) 078
IN GW FY OF. 321s Shek 0) ee ee Le SNR By cea ee Oh 13, 688, 801. 67 6, 525, 191 7 163, 611 3, 009, 856 3, 515, 335 A; 820, 333 1, 189) 523
North Uhrotina.c wv. feagceh eae. ee eels Be 6, 270, 690. 68 6, 157, 917 112,774 5, 308, 212 849, 705 4,218, 306 1, 089, 906
Morth Dakotac vec. sec see. tetas eee oe eae ey ete een ae a 4,222, 487.70 6 3,111, 932 1,110, 556 2, 408, 522 703, 410 L 675, 549 732) 973
PHIO 2.5 Sache Sore erence oO. | Sync ee ees ee Oe eS 10, 202, 947.71 rd 057, 920 3, 145, 028 6, 364, 354 693, 566 5, 015, 063 ie 349, 291
SDISIANOMIG . 0 oe ot ow cerrems cca esd ih see een een eee tine 6, 338, 245. 60 3 a 743. 464 2, 594, 782 2,210, 548 iis 532, 916 1, 854 622 "355, 926
Meson 5.2) it cca zs speed oP Ly, ang ee. ae eee eee | 4,332, 178. 26 4, 268, 076 64, 102 4, 054, 679 ” 213° 397 3; 440, 004 614, 675
PCAMAVIVANUS . 00RD. yh chk rota ed ee ee 12, 632,644.29 | 11, 463, 738 1,168,906 | 10, 553,739 909, 999 6, 978, 628 2 575, 111
Piltoge Teland oy 2. Wy, cake ania gts sa ee eee 641, 166.13 637, 411 3,755 556, 858 80, 553 | 428, 321 28) 537
South Carolina .!35..5 5.2 Lee ee ee a 3, 946, 617.50 3,181, 812 764, 805 2, 324, 629 | 857, 183 1, 658, 713 65. 916
mough Dakotass 6.5) foc <o52ho eo goa eee ane ee 4, 452,883.04} 3,831,633 621,250 | 2,297,440 1, 534, 193 1, 619, 304 678, 136
Tennessee eects SU en a oe ee ee 6, 228,137.98 | 45,491, 555 736, 583 2, 306, 453 3,185, 102 1, 148, 217 1, 158) 236
SROKES: «cheno ie cpl mitosis Cove encased Beene See ce ea tame | 16,100, 404.77 11, 479, 044 4, 621, 361 7, 878, 005 3, 601, 039 5, 953, 592 1, 924, 413
(of OE Ree EA i aA, 6 Wa Ae a 3, 117, 206.38 1) 924) 761 1, 192, 445 1, 510, 465 414, 296 835, 193 675, 272
VOTO Oh AE ths. cclhe Poh W- > s eee k.= aed ae toma, 242, 103.73 ” 674) 908 567, 196 599, 178 75, 730 432, 354 166, 824
Vivgiriin ot gee ee eeeces Seas se. cee ae cA Pe Se Bite REST! 5,451, 730.28 | 63,797,876 1, 653, 854 3, 303, 793 494, 083 2, 041, 449 1, 262, 344
Wabi Rtan. £2 oo. coe ida hE al, Hs ins ti ee ie, or 675. 83 3, 936, 886 34, 790 3, 826, 622 110, 264 3, 665, 381 161, 241
West Virginia 2 dipoe Ss gman ip Sie nlm ie Diath Sid OS ape cel wien kia ee een | 2,922, 504.45 42,776, 840 145, 664 2, 284, 864 491, 976 1, 765, 286 519, 578
WRISCONSHg «oh ec ON eee Nee (eee ce, ok eee ee! | 7,004, 280. 67 5, 532, 666 1,471, 615 4) 215, 648 1,317, 018 2, 961, 960 1, 253, 688
DV OMIT i cain rary Nar ee ei oh) Sk ee ee 3,378, 558.17 2, 855, 5387 523) 021 2, 188) 174 667, 363 1, 835, 003 353, 171
Total. a2... ha nonin hinty te. te a eee 266, 750,000.00 | 199,823,427 | 66,926,573 | 155,623,280 | 44,200,147 | 116,485, 107 39, 138, 173
1 Includes projects entirely completed and paid for.
2 Includes completed portions of projects under construction.
3 Reduction due to payment of final vouchers.
4 Correction.
§ Difference due to revision of pee statement or agreement estimates,
6 Reduction due to withdrawal or cancellation of projects.
C)
FEDERAL-AID ALLOWANCES.
PROJECT STATEMENTS APPROVED IN OCTOBER, 1921
; :
Neenth | |
’ ee sengt Proje =
State : aoe County. in Type of construction. Heer Estimated | | Federal
| miles. approved. cost. | aid.
2 = |
SVL OT: 00%: Bogs SO, SRA peta ee ee 73 | (CH OCTA ere es Ne eres ore Sale I OSU GEA O-Cla Veena ee ite nek el atune tes soe male Oct. 7 |1$63,798. 09 |! $31,899. 05
104. Etowali-2 tte ete 9.694 Bituminous macadam, bituminous concrete. ...- Oct. 14 | 269,174.23 | 134,587. 11
OTL Dekalb eee eeeine Sc ae frou Carte 5 soe wn eae Oct. 12 | 157/329.64 | 78,664.82
PIT ANSASl oso. se ase ee eee 104 kn erescsesee set eases ord seo bo! RONG MCAdanyee te mee see hos oy 25 Oct. 14 1 65, 410. 63 130/315. 80
; RYOUPMAsSissip pl meee ee eon BLGOOR CONCLOLOL A saan en SUR eral a Ge Oct. 24 | 184’989.56 | 40°000.00
7s Se ASE Philling; see eet a ee SPAADRE WN atceniGe: Scala Sen eal ne Oct. 7] 93,737.72 | 35,000.00
ORION TVG Sea ser ake ak oe ein wee SoeMoan DeLNArTGinG. teste see ene cea 15.740 | Bituminous macadam.....................-...-. Oct. 24 375, 980. 00 187,990; 00
86 |'San Luis Obispo..........-- Sie. SOTO Lav el aah Oe ate Mee ern se tes bo do.....| 333°850.00 | 1662925. 00
(SOIOTAGOR Seb sap eae ae d-eis ae =r SZ eMATADANOG meee eae Seen nee 2 IESUTAConGlae Seta ne Noa oe. be sdGta se: 68,048. 31 347004. 15
PRIGTIGH ES LAU a ea eee citc, acintat DBL) REL ant Comers cee tan enc ees alee see BU a Heo at ERE perk ae. | Oct. 3 [2 402,744. 33 |2 201. 372. 16
Sdlabosta Prete nee esd. oo ss. BOPP O Were pene oe ies Ba MOOR GTA Elo ewe ee ee Oct. 20 | 232'567.06 |2 16/283, 53
Ronde tes eeubarayin meme hae ee tees 8.800 | Barth... 22.222s.cssteses ce LeTITICIEEE!] Oct! 14 | 53°000°00 | 18,000.00
SOMEE TAN as ee eeeeh cok mecca Sues 1.278 | Bituminous filled brick or concrete.........-..-. Oct. -6-| 77,412.50 710. 00
DF VASO tewe tne thyaga eat PoS85, Mitral cree Ness Mcgee Oct, 14 | 3s°91s.7 | 16°957, 87
on "Outawac en eee ee POD ICONGEREG ema e ee ae oes ee e . e Oct. 13| 46,967.91 | 15,000.00
OSs aWyandottelsmerd ol ees. ak ee 15500 |2--<. doxrs sete Bh aaa lr te eer: Oct. 29 | 897672,00 | 227500,00
OOhusia wileomen wes. ae weet or PEG O00de Earth etek a teen pt fee ety ae Wand sod oe do ui 40° 700. 00 18,000. 00
100 Ahichisencseee se pes ee 6.000 |..... fires tas SUA hoe he bel dogs 79,200.00 | 18,000.00
102 | Wyandotte....-..- Se tee aes 4750 \o 22... GSE 5 th ee eines, Sas Dias ieee oe ie doe: 1387875.00 | 14,250.00
NE tars Paes Se ee eae di deCarrott ct keen. eee tek] 121.030 | Concrete and earth............-.----.ss2-+s020 “Oct. 26'|135/214,30 | 13,604.92
Wrst iMdrys ta Bas Moc an 0. Biss Da Nerdy alone Sk ght eh ties Ms eh oc ge er Oct. 24 160,449.10 | 147340.15
Clea 1 aetna ae Nall Se GRICDRICOTOIGEN SAREE ee ee See Oct. 29 | 1637339.00 | 16,333.90
eee aioe VOevee ses seseceecee ieee ieee: Oct. 28 | 327615.00 | 3,261.50
i OTN CO Teas stoke ale eis arate a Or tL eleam ee UB ek 5 OE eS eR eee raat oat ee tee | x 3e 3,36
SEASSACHUSOLCS ese se eas oes ae | ue | Soe Siete ers ta SAR mth Lo | i or eopeies or bituminous macadam..............- ae f ae 30 ae O40. aa
| Ho Canea s Cape cntiee lithe Meh ott Re Rae .078 Bituminous ‘ rc 312 g 5
MELA TIOS GEO < pemrastrme Mate are ec aro PASS DO] CRAM eet Series keene ee eee 23. 080 eMerg ks Seaman es aan SE Cade Be Se ee a ree 20 4a 30
154 Morrison ars 5 ae oll ee es bee ae Mare eet oe eee ne eerie) ae ke eA? Oot fina [1256870142155 000.00
a | t. ee BS ooo BORE quay Odes Honea Joadek we Be ee er Ae ease e Die cr Bee a gee oi2 241,875.86 | 212,000.00
foe = Oe ori nw i is ee twee fem n nen see elQaccn cn ence cscs sce ecw e tes eee ce sere ces eece- « 5 8 2 SC
Mao Hosea a Haws 1| Mere Reece eet eines, Gey teat ae na B Get. 13 ee 353, 38 3107000. 00
pe COs eB LeSIS 2 Sir Sere aa ce Sinoson. <= tea BURST (eeeec ORO Lari ie ai tk eae, ee owes 329,156.25 35,000.00
| 211 | Popeand Stevens..--.-.. =... $15,220 |..... ERR ae 20 et i a ete SOON BS -. ...d0...../8179, 578.24 | 310,000.00
Py h) dDagahel sees ian! oh et ae SS B17. 820 ose ee AR ay hy > NE a PS a don... 3.94'994.03 310,000.00
ewe ei Bhorbtitme.t soa oc et te ack us 89.960 |..-.. NS ett VAR ema are eee ba CEN Cs do... ./8133,462.61 310,000.00
218 | Wabasha............. en at ee S140 aes hea Cerin, eitic he SURES ICE. do.....|3161.640.41 310,000.00
OL OO ae. Se ae te toe gee $3,800 |.---- doa! ae eee ed eo ee TO 3 23°472.58 35,000.00
220 | Isanti....... Mets Sah Peds $4930 [en YES Caner s Te, Atea e AME ECR Sd 7 Rosa 3 437697.50 35,000.00
SIMO lmstend eames eee ee 310.680 |..--- GE tes ky 2 Lt FEC Ser. 2 eee See 356,390.40 35,000.00
DONO UOT EAL aes Veneto 314.500 |....- APS Mace! ot, SPR oe 5 gk Vine eel Rigs Me AIBC CP do... ./31627156.00 | 3 10,000.00
Aten goa" her MENS, Mudeada oe. ods cases. #2. 810 |..-.- CIR So NER Date ae Dunes Nee Nine 7 do.....| $20,550.68 | 3 5,000.00
SMISSOSINPL Sie, Sena begs Tle CO TORTOR ee eet aE he 899.000.) Harth.....-...-.:..--seenecccsce-:-:cccscccce-+.| Oct. 29 | 834°237.00. | 815, 064. 28
SHEP tindtese Se ee Cee we er hk See RT SOD eClaveeraval ace ia eae esos a. ate. ee do.....| 3 48/290.00 3 22/500. 00
BMY Senetaemtoees cetera DR Teoh Oorieratar tat ee sae, eee tas es IS do... .|3 296,972. 50 3 100,000. 00
TigAb POReR LY er kG A. dene oe. 12 SOM Gray ee Soy ssa heewe s o 2 a Oct. 11 | 1037157.94 | 51,578.97
125 Calhounseae few. ee ee SAO RES: Seach dihacthes es asics eee “22. Oct. 26 | 2487892.18 | 100,000.00
ae 120.) Clarker ste ses r See ae are DOH Mera raha e eee ox Oe aaa to ys 5. Pac eee Se Oct. 11 | 80,663.00 | 40,331. 50
Missouri... ...---.------+-+--++- | MCGENCH ARENT et Sms ec aia pos, ext rae loess 35,570 |. 2-0. chee Srey AME SRSA EY Bed io is SRD IeN 2 Oct. 12 |3312258.41 315,629. 20
Gott udinin ee e522 cee a ee 83.800 |....- PEED ie Slee Ee xe Meh ER AE EEA, SE Oct. 27 | 362,666.18 | 331,333.09
178 | Stoddard Bic eh ee ge ee 58.000 -.-.- do PL FAN Get tae ae Eh oe eR Na 2 Oct. 6 | 75,700.00 | 37,850.00
CU ee ee eee (er 1Oot Gallatinee eee ee © ee ete “UBIO PE Sedan ei’: Mtoe ee ine oe eas One iB 170937, 40 730 618-70
Datmickasemmaks totes Son vs es 49B Burt, Dakota and Thurston....... $a DaO Me Biarels tae tee ek ae ek Soe eee Oct. 3| 26,174.19 | 13,087.09
128 | Seward, Lancaster.............--- 221,920 ..... D6 GS eae ok Pee ween on ands A, Oct. 20 |228, 749.22 214) 374.61
Shes Se Boel Clovis seem A er eae tea” ak Ayaaee: ine a eee bet 8 Pee ANS Pee Oct. 12 |126, 483.82 113) 241.91
INCE Eee KEES, TORR So eee He | Spans: Ree te enna eater 13. 500 ante CEUSHEG StOMO ses mee tee teteer omer ie else ae Oct. 20 50, 215.00 25, 107.50
| LEAC OLIN ota ele ca eae Xm, waa, Ste Caran! ee 6. Ol PIAL ULY Sector acctols ala ote mote alah crete sie a eee arate sre, sa ee 84, 903. 5 2,421.75
North:Dakota:........--...<.-4. Wee 104"), Methinger.c0.0Sses<. 2 eceeee ete ne i) Bridge oe SES ih at eee ee at aoe oy 18 400,00 | #7 700. 00
Tapa Paag cok. Sah eet wees Sore & OICGrAvelcre hens ket cee en a meee cece cteat Ap do....| 98,560.00 49, 280. 00
Ot se ake ee ee ieee USS MW ayticestacscan sos ee ctes ONAN B. aheal. Concréte of brick... yste) ose ean. ac, es Oct. 7 | 253,000.00 106, 000. 00
POeotS \Starkse re. eos eee Fee. EOSOOAESB TICK natu eee a a ee ere PARES. Oct. 18 | 360,000.00 #15, 000. 00
Oriahorin case... 4. 2.4.-| TOW Dilger Sa i ees ce LP TVINCOncrbtee. be v2. dt eee ee a mae Oct. 17 1308, 799.45 180,000. 00
Penney iveaningutsss. 0:4... +2.2- (OaleCleartiold esse: cen saee Sas Se ae Wud. Ree |cReintoroed concrete <. vou -.s-2-ckeee Ak ete eop Oct. 29 | 333,927.22 | 96,560. 00
| 108: Lawrence, Mercers.< 7.2: -.5--=-.-s | 7.568 , Reinforced concrete or sheet asphalt............- Oct. 11 | 491,558.04 | 151, 360. 00
LODE NMCer Cer see secrets edna seems ore 42550 \eeree Oe ee cet an lai ctena sierevigte tutte aerate <r pe ee oa do... .| 295, 155. 52 91, 060. CO
110 | Northumberland.........-...-.... Hts 4559) CONCIOLO: ne etee seene arian aoe Sj Jageaeonae cas Oct. 29 | 283,684.61 | 24, 025.68
111 | Lycoming, Northumberland. ..... WR rity Si Ee oe GO Fee Eee eine aero aes cokes Sais se see Oct. 11 | 474,355.09 146, O£0. 00
Samal Carolina sur y ss y<.=---- pal ASD OD sateen oo rete Fa Le 766s i Gand-lage es. ates ete eho 2 oe Oct. 26 | 74,218.29 37, 109.29
93 (Ghesteriicldia <0 ts 1a teas) os 1,745 |. Gravel s eee. eee ess ee eo Oct. 29| 6,618.35 3,309.17
G5 A Bonatort eee we eee a Nee se On, STtut Sand-Clayrow 1, oc ah ness mess Bf wicse.-| Oct. 7 | 101,806.39 | 44, £01.77
| 112°| Marlboro.......-...-- SG, TE | Reta Clayspravel 5.08 sats nts, sea oo Oct. 14 28,085.86 12,000.00
| AS ie CEO CT ee ete oreo Seid s aS one ate rete tee sins (BTIGS Gee oe ehebce ieee 5 eine ciate tela see o's Oct. 22 | 55,149.60 | 27, 514.80
South Dakota. 2-.2.¢--.---.-+-| Sot eprookinsse aatrereky Se... aches oe Wie OROW I GrercLine ss oo rer tenes caren se Mae a Oct. 7 | 110,764.50 | 55, 382.25
ERAS aoe erat ates Sa ple fete ole Ae { DTA LUUIS Sa eiere te oat ass ia Oe wre oe 21.760 | Bituminous top gravel....... aetna an cttw ois mists Oct. 24 |1136, 832.99 | 1 68, 416. 49
REM TEP Ok oy s)he ray ee Me nea POSS TOM s BiGomiin OUSmne tue eee nce nee eee: ak eed Oct. 22 |1238, 541.33 | 1 47, 685. 75
/ ia ee AoReebs By ani nein. 2 eek era eal BDO“ O0OR nGravels sees = eRe ae fee tee anaes ots Oct. 19 3153, 395.00 | 3 38, 348. 75
Sth hie EGER Me EC eee ae ere? ae rae cee GURAZ. |i Marth camecto wk &. < sat ea aeicca esate Lae ede Oct. 9 122,846.46 61, 423,23
Wintgislnt 2 a Sa eae Sees AAS GT AVGON seer a me awe 02 On BRDU! as tee Oe era ee tks area la tie Saale aota aie a cae ioate Oct. 13 3115, 500.00 | 257, 750. 00
| 68°) Vork=Warwick=s. ssss-cusesso.-2-3 Hu BORE CONCLOLOS ane seperti oe aio ee meer k -cemeee Oct. 14 269,335.88 | 115, 600. 00
Ta @COUbe masmes tae wae se eas eeteo as 4,890 | W. B. macadam.....---...........------- 2 ee Oct. 27 | 119,909.02 | 59, 954. 51
76) || Prince bdiwards sec oz <a ees ee iO. HANNE OONCEETO; TOP-SOlL Oe tee= ise ne oan eon «ini anes onie (al ane do... .| 189, 810.55 | 94, $05. 27
785 Goochland s2.4-% oc ae <= ners BIS DDO NAL Op-SOEN af arian epee on doe tte ae ane = wiarepehe eS er lal='= 5 Oct. 13 379,090.00 | #39, 545. 00
GAT WASOeaae see ue een a= teams '3 7.050 | Bituminous macadam............-.------------- Oct. 14 3300, 897.68 3141, 000. 00
99 | Halifax and Pittsylvania.......... BLOOM ML OD)-SOLl see samen as eatin ee ene seer Oct. 18 | 340,418.40 320, 409. 20
111 | Wythe and Carroll...-.-...-.---.- 12.910 | W. B. macadam..-...........-.-.--------------- Oct. 29 | 314, 248. 22 157, 124,11
120)) Shenandoah, Page: .2--..2--- ses =. 3. 520) [acme CLO eer ee nee sneer men a ee ein tewreles sia bare do....| 48,120.00 21, 560. 00
L2sane Carrol Uy ee ces hee Ceara itera tenia? 48) 00] Dae CO Sh ete ta ties eee tt ise ae ee rae ee ae Oct. 27 | 171, 845.30 85, $22. 65
25 pp OULG OU aimee ute see ar ae ae miei 2.730 | Bituminous surface......-.-.-.----+-+---+-+---- Oct. 20 | 80, &82.53 | 40, 291. 26
133s |PHLONTY ta teem os sta scene Se 200s OP-SOL ss oe a ece peter sine ai Aaete niele imine Ge = Oct. 27 | 85,250.00 | 42,625, 00
NWASHIRRCOM sce een: Suc ae vs ec | OOMEO ATK OLA stalect’s nce: se ale eiamiaieere= A810: CONCTOtE ra en aa aisletne ee cae sas ee bole arts es <4, iele == Oct. 14 284,940. 83 1, 000. 00
YNGTEUTO Tce 2 ie ae O10 VEGTant , oosce nose eee ames ae Spell ECO GOR AN Smee oe Sie Soe ee AROS SEE e acer San oe] par do....| 33,605.00 15, 000.0
Fas ankee wees s os ee ee eee 8, 210 Sees Pi Fee hy a ee Re Mee ng! Sa Pet eee ea Oct. 6 50, 245. 00 31, 870. 35
MVE MORI P Ere Sera a )-1- sens citeieia sis LO2ehaainta meee coe. einen aaa | Tt 47 3 ese lectad Material t= sees sates th oe eee es eee sie Oct. 11 | 80,300.00 40, 150. 00
1 Revised statement. Amounts given are increases over those in the original statement.
2 Revised statement. Amounts given are decreases over those in the original statement.
3 Withdrawn statement.
ROAD PUBLICATIONS OF BUREAU OF PUBLIC ROADS.
Applicants are urgently requested la ask only for those publications in which they are
particularly interested. The Depariment can not undertake to supply complete sets,
nor to send free more than one copy of any publication to any one person. The editions
af some of the publications are necessarily limited, and when the Department's free supply
is erhausted and no funds are available for procuring additional copies, applicants are
referred to the Superintendent of Documents, Government Printing Office, this city, who
has them for sale at a nominal price, under the law of January 12, 1895. _ Those publica-
tions in this list, the Department supply of which is exhausted, can only be secured by
purchase from the Superintendent of Documents, who is not authorized to furnish pub-
lications free.
REPORTS
Xeport of the Director of the Bureau of Public Roads for 1918.
Report of the Chief of the Bureau of Public Roads for 1919.
Report of the Chief of the Bureau of Public Roads for 1920.
Report of the Chief of the Bureau of Public Roads for 1921.
DEPARTMENT BULLETINS.
Dept. Bul. *105. Progress Report of Experiments in Dust Preven-
tion and Road Preservation, 1915. 5c.
“136. Highway Bonds. 25c.
220. Road Models.
*949, Portland Cement Concrete Pavements for Country
Roads. 15c.
257. Progress Report of Experiments in Dust Preven-
tion and Road Preservation, 1914.
314. Methods for the Examination of Bituminous Road
Materials.
347. Methods for the Determination of the Physical
Properties of Road-Building Rock.
*370. The Results of Physical Tests of Road-Building
Rock. 1éc.
*373. Brick Roads. 15c."
386. Public Road Mileage and Revenues in the Middle
Atlantic States, 1914.
387. Public Road Mileage and Revenues in the South-
ern States, 1914.
388. Public Road Mileage and Revenues in the New
England States, 1914.
*389. Public Road Mileage and Revenues in the Central,
Mountain, and Pacific States, i914. 1dc.
390. Public Road Mileage in the United States, 1914.
A summary. ;
393. Economic Surveys of County Highway Improve-
ment.
407. Progress Reports of Experiments in Dust Preven-
tion and Road Preservation, 1915.
414. Convict Labor for Road Werk.
*463. Earth, Sand-Clay, and Gravel Roads. 1c.
*532. The Expansion and Contraction of Concrete and
Concrete Roads. 10c.
37. The Results of Physical Tests of Road-Building
Rock in 1916, Including all Compression Tests.
5e.
555. Standard Forms for Specifications, Tests, Reports,
and Methods of Sampling for Road Materials.
10c.
583. Reports on Experimental Convict Road Camp,
Fulton County, Ga.
586. Progress Reports of Experiments in Dust Preven-
tion and Road Preservation, 1916.
*660. Highway Cost Keeping. 10c.
670. The Results of Physical Tests of Road-Building
Rock in 1916 and 1917.
*691. Typical Specifications for Bituminous Road Ma-
terials. 15c.
704. Typical Specifications for Nonbituminous Road
Materials.
*724, Drainage Methods and Foundations for County
Roads. 20c.
949. Standard and Tentative Methods of Sampling and
Testing Highway Materials.
*Publie Roads. Vol. II, No. 23. Tests of Road-Building Rock in
1919.7 Loe.
Public Roads, Vol. 1V, No. 11. Tests of Road-Building Rock in 1920,
DEPARTMENT CIRCULAR,
No. 94. TNT as a Blasting Explosive.
*Department supply exhausted.
EE. Beoss:
505.
097.
Eyer te
Bul. *45
Girs 789s br
*90.
Sg.
*94,
*99,
See. Cir. 49.
59.
63.
*65
FARMERS’ BULLETINS.
Macadam Roads.
Benefits of Improved Roads.
The Road Draz.
SEPARATE REPRINTS FROM THE YEARBOOK.
. Sep.*727 Design of Public Roads. 5c.
739, Federal Aid to Highways.
849. Roads.
OFFICE OF PUBLIC ROADS BULLETINS.
. Data for Use in Designing Culverts and Short-span Bridges
C1913)" sloc:
OFFICE OF PUBLIC ROADS CIRCULARS.
ogress Report of Experiments with Dust Preventatives,
0 7emmoGe
Progress Report of Experiments in Dust Prevention, Road
Preservation, and Road Construction, 1908. 5c.
Progress Report of Experiments in Dust Prevention and
Road Preservation, 1909. 5c.
Progress Reports of Experiments in Dust Prevention and
Road Preservation, 1910. 5c.
Progress Reports of Experiments in Dust Prevention and
Road Preservation, 1912. 5c.
OFFICE OF THE SECRETARY CIRCULARS.
Motor Vehicle Registrations and Revenues, 1914.
Automobile Registrations, Licenses, and Revenues in
the United States, 1915.
State Highway Mileage and Expenditures to January 1,
1916.
. Rules and Regulations of the Secretary of Agriculture
for Carrying Out the Federal Aid Road Act. 5c.
72. Width of Wagon Tires Recommended for Loads of
Varying Magnitude on Earth and Gravel Roads. 5c.
. Automobile Registrations, Licenses, and Revenues in
the United States, 1916.
. State Highway Mileage and Expenditures for the Cal-
endar Year 1916.
. Experimental Roads in the Vicinity of Washington,
DeOe soc.
Public Roads, Vol. I, No. 1. Automobile Registrations, Licenses,
and Revenues in the United
States, 1917.
Vol. I, No. 3. State Highway Mileage and Ex-
penditures in the United States,
AM ie
Vol. III, No. 25. Automobile Registrations, Licenses,
and Revenues in the United
States, 1919.
Vol. III, No. 29. State Highway Mileage, 1919.
Vol. III, No. 36. Automobile Registrations, Licenses,
and Revenues in the United
States, 1920.
Vol. IV, No. 5. Automobile Registrations, January
L to July 1; 1921;
REPRINTS FROM THE JOURNAL OF AGRICULTURAL
Vol.
Vol.
Vol.
Vol.
or
10,
No.
Vol. 17, No.
RESEARCH.
. 19, D- 3. Relation Between Properties of Hardness and
Toughness of Road-Building Rock.
. 20, D- 4. Apparatus for Measuring the Wear of Con-
crete Roads.
. 24, D- 6. A New Penetration Needie for Use in Testing
Bituminous Materials.
7, D-13. Toughness of Bituminous Aggregates.
4, D-16,. Ultra-Microscopic Examination of Disperse
Colloids Present in Bituminous Road Ma-
terials.
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