Historic, archived document Do not assume content reflects current scientific knowledge, policies, or practices. 1 . 9622 C2av3 rfvenaqe 0?cne ^Hcnenoed 1Ruh-0^ and Snaoi&K oh t6e SotitAenn ^hU^ihCh TtattoKHl 0?oneAtA CHARLES C. BUCK, WALLACE L. FONS AND CLIVE M. COUNTRYMAN t94X California Forest and Range Experiment Station Berkeley, California Stephen N. Wyckoff, Director UNITED STATES DEPARTMENT OF AGRICULTURE LIBRARY AVERAGE FIRE DAMAGE FROM INCREASED RUN-OFF AND EROSION ON THE SOUTHERN CALIFORNIA NATIONAL FORESTS By q/ Gliarles Co Buck, Wallace Lc Fons and Clive M Countryman— Effective management and planning of fire control activities on southern California watershed areas require both systematic appraisal of damages from current fires and comparable estimates of damage that can be expected from future fires e Watershed damages— those resulting from increased run-off and erosion fol- lowing fire — constitute an important part of the total damage from fire on most southern California watersheds They must therefore be determined and added to the other direct and in- direct damages from fire to secure an adequate appraisal of total fire damage 0 Estimates of run-off and erosion damage following fire have been derived from a special watershed damage study. These estimates have been published in a form suitable for current fire damage appraisals on individual watershed units of the four southern California national forests!. . The purpose of this second paper is to present the same data in a form more convenient for use in predicting probable run-off and erosion damages expected from fires in the future or from those burning currently for which the locations of ultimate control lines are unknown c The average damage rates in the tables that follow were calculated directly from the detailed figures given in the earlier publica- tion., They are based on the assumption that, on the average, fires in each appraisal unit will be distributed among the up- stream zones described in the earlier publication in proportion to their respective burnable areas.. The average run off and erosion damage rates given here are thus the weighted average upstream- rates to which have been added the sum of the downstream rates for each appraisal unit „ The area indicated for each appraisal unit is the net area that will suffer run-off and erosion damage from fire Maps showing the locations of the individual appraisal units to which the fire damage estimates apply precede the tables. 1/ California Forest and Range Experiment Station, maintained by the Forest Service, U-® So Department of Agriculture at Berkeley, California in cooperation with the University of California a 2 / Fire damage from Increased run-off and erosion Angeles, San Bernardino, Cleveland, and Los Padres national forests, Charles C. Buck, Wallace L, Fons and Clive Mo Countryman 0 4 volumes, tables and mans, 1948 . FIRE DAMAGE APPRAISAL UNIT MAPS AND TABLES Cleveland National Forest FIRE DAMAGE APPRAISAL UNIT MAPS Deseanso Ranger District No, Name C-l 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 La Posta Greek Kitchen Creek Cottonwood Creek Bear Valley Barrett Lake Skye Valley Pine Valley Creek Wilson Creek Sweetwater River Conejos Creek El Cap i tan Reservoir Boulder Creek Cedar Creek San Diego River Featherstone Canyon Wright Canyon Mt , Gower L II 6’45 1 16 oO^ FIRE DAMAGE APPRAISAL UNIT MAPS Paloraar Ranger District NOo Name C-18 Roden Canyon 19 Black Canyon 20 Temescal Creek 21 Agua Caliente Creek 22 Puerta La Cruz Creek 23 West Fork San Luis Rey River 24 San Luis Rey River 25 Temecula Creek 26 Pechanga Creek 1 16° 45' I M7 PQ' LEGEND C-20 UNIT NUMBER UNIT BOUNDARY — —NATIONAL FOREST BOUNDARY STREAM RAMONA CLEVELAND NATIONAL FOREST PALOMAR RANGER DISTRICT FIRE DAMAGE APPRAISAL UNITS 1948 SCALE IN MILES 2 0 2 4 6 33° 00 _J uroo' CALIFORNIA FOREST 6 RANGE EXPERIMENT STATION 116*45 FIRE DAMAGE APPRAISAL UNIT MAPS Trabuco Ranger District No . Name C-27 San Mateo Creek 28 San Tuan Creek 29 Trabuco Canyon 30 Santiago Creek 31 Sierra Canyon 32 Elsinore 33 Lee Lake 34 Corona PAC/F/a OCEAN C-28 UNIT NUMBER — UNIT BOUNDARY NATIONAL FOREST BOUNDARY COUNTY BOUNDARY STREAM CLEVELAND NATIONAL FOREST TRABUCO RANGER DISTRICT FIRE DAMAGE APPRAISAL UNITS 1948 SCALE IN MILES 0 2 4 CALIFORNIA FOREST 8» RANGE EXPERIMENT STATION 117*45' 117*30 117 15 AVERAGE RUN-OFF AND EROSION DAMAGE EXPECTED FROM FUTURE FIRES ON WATERSHEDS OF CLEVELAND NATIONAL FOREST FIRE DAMAGE APPRAISAL UNIT MAPS AND TABLES San Bernardino National Forest CO u Ph © C < © > - O s P •r-4 M >> -■ s P © Ph © C © Eh 3 © >> .Sd >d © © PD H PP ph © O © © c Ph O © © o i— i P © © o O © Cl, © Ph !—— 1 C Ph Ph >> r— 1 © Ph S th © © •rl o O c tJ l— 1 © P © O p t> o © P © Ph c X <, t> ro © c P o •rH 'O O o © CO Ph •T-l P «-D © © 3 CO NI c M © -P © f-H O, s CT* •'H © c © 3 C ^__*** w K • H OJ ro_3- ITn VC 7 8 O o r— < H O 1 r— 1 r—1 Ph }25 pp FIRE DAMAGE APPRAISAL UNIT .MAP 0 O 0 0 £>3 O 0 O 0 0 •H O 0 >5 0 o -P !>s O 0 0 0 0 o 0 0 £>5 o 0 0 0 0 o 0 0 0 0 0 £>5 o O O i — 1 0 !>i 0 o 0 CO 0 o 0 0 0 Oh 0 0 0 £>3 o 0 O o 0 s CO 0 0 0 0 °H 0 Td O £>> 0 0 0 0 cd o CD 0 0 0 0 O 0 0 0 0 £>5 r0 0 S ttf) 01 0 0 S o O °H 0 o £> o TO 0 0 0 0 o 0 0 0 o Oh o 0 0 0 0 0 0 O 0 O cH o Oh 0 0 0 e 0 0 CO 0 0 o o & & 1 — 1 r — 1 O 0 0 i — ! O 0 0 0 0 0 P0 -P °H 0 “I—3 0 O -p 0 0 0 °H £>5 £>3 £>5 0 -P O 0 0 0 0 0 0 O £>^ >> 3 0 o -P 0 0 0 0 0 0 0 0 0 PQ o o ►0 CO (0 Q CO w Q Q Q Q < O cA Q £>5 0) 0 i — I 0 > 0 co (Mr^sfiOivD^tOOOHCMC^^iAvD^dOOOH ° cococooococococo-'4-"Nt-} 0 0 0 0 0 0 01 0 0 S > 0 0 0 CQ 0 0 CH o 0 O 0 0 £> 0 0 0 s 04 O £>5 0 “S o cH 0 0 0 O 0 £>1 0 0 0 0 0 04 0 0 0 0 £>s O 0 0 0 o 0 0 0 01 0 1—1 0 0 0 0 CO 1 0 >5 0 0 o !>} O 0 0 0 0 0 0 0 0 0 0 0 0 0 -p O tu) O o 0 0 o 0 0 0 o 0 0 0 0 O 0 0 >> 0d 0 0 0. <££ 0 0 O 0 0 0 O 0 £ 0 £>} o o O 0 0 0 0 O o S 0 0 0 0 0 0 0 0 o 0 00 O tio 0 0 0 i — 1 -P 0 i — 1 04 0 0 0 I — 1 l 1 -p -P 0 0 nd 0 tlO =H 0 i — 1 -P 0 0 0 rH r — 1 0 0 0 p "0 "P 0 0 ■0 £> -P «H 0 0 r0 o Cfj °H *2 0 •H 0 1 — 1 i — 1 crH 0 0 0 0 CO w PQ o Oh 2 CO PQ o 0 <4 o CO PQ Q CM CO -Si- UO vO i> to o o i 1 CM CO -sj" ir\ \0 1> 00 On O 0 No. 1 — 1 1 PQ 1 1 1 i 0 ! i ! — 1 1 — ! i — 1 CM CM CM CM CM CM CM CM CM CM CO CO ,00„ill ■ 00.^11 AVERAGE RUN-OFF AND EROSION DAMAGE EXPECTED FROM FUTURE FIRES ON WATERSHEDS OF SAN BERNARDINO NATIONAL FOREST FIRE DAMAGE APPRAISAL UNIT MAPS AND TABLES Angeles National Forest No. A-l 2 3 4 5 6 7 8 9 10 11 18 13 14 15 16 17 18 19 20 21 22 23 24 25 86 27 28 29 30 31 32 33 34 35 FIRE DAMAGE APPRAISAL UNIT MAPS!', Name San Antonio Canyon Thompson Creek Lower Thompson Creek Liveoak Creek Bradford Avenue Marshall Creek San Dimas Reservoir San Dimas Canyon Johnstone Peak Dalton Reservoir Dalton Canyon Little Dalton Canyon Glendora East Fork San Gabriel River North Fork San Gabriel River Bear Creek West Fork San Gabriel River San Gabriel Reservoir No. 1 Morris Reservoir Lower San Gabriel Canyon Roberts Canyon Fish Canyon Duarte Sawpit Canyon Monrovia Canyon Ruby Canyon Santa Anita Canyon Clamshell Canyon Little Santa Anita Canyon Sierra Madre Eaton Canyon Pubio-Las Flores West Ravine Arroyo Seco Flint Canyon No . Name A- 36 Mt . Lukens 37 Blanchard Canyon 38 Haines Canyon 39 Zachu Canyon 40 Tujunga Reservoir 41 Tujunga Canyon 42 Little Tujunga Canyon 43 Pacoima Creek 44 Lopez Canyon 45 May Canyon 46 , Wilson Cany o n 47 Sombrero Canyon 48 Grapevine 49 Sheep Creek 50 Mescal Creek 51 Big Rock Creek 52 Pearblossom 53 Little Rock Creek 54 Little Rock Wash 55 Hunt Creek 56 Amargosa Creek 57 Fairmont 58 Soledad Canyon 59 Newhall Creek 60 Sierra Pelona 61 Mint Canyon 62 Boquet Reservoir 63 Boquet Canyon 64 Dry Canyon 65 San Francisauito Canyon 66 Elizabeth Lake Reservoir 67 Elizabeth Lake Canyon 68 Castaic Valley 69 Castaic Creek 70 Piru Creek AVERAGE RUN-OFF AND EROSION DAMAGE EXPECTED FROM FUTURE FIRES ON WATERSHEDS OF ANGELES NATIONAL FOREST 5 o cs in H is O -r— I O ft o o -P o O CJ o m -P Cvr- 1 -f -p o ! o!>i O "ZU U *H c