Foothill ditch, wooden flume east of McKay Point 5077 November 19, 1925

Fish gate 5078 November 19, 1925

Foothill ditch steel flume 5079_5080 November 19, 1925

5081_5096 December 1925

Laguna Dam 5081

Laguna Dam wasteway 5082

Sand Hills 5083

Sand Hills Road 5084_5085

Paul Bailey, Colorado River 5086

State Board of Engineers - head of Boulder Canyon 5087

State Board of Engineers - intake of Colorado River Aqueduct 5088

George and Walter - Colorado River 5089

Imperial Canal below Sharps Head in Mexico 5090

Talus slopes near Black Canyon 5091

Gravel bars at mouth of Vegas Wash 5092

Talus slopes at head of Black Canyon 5093_5094

Gravel bars near Boulder Canyon 5095

Gravel bars, Colorado River at Boulder Canyon 5096

Intake of Barton Cut, Lindsay-Strathmoore Irrigation District 5097_5098 January 16, 1926

Junction of Wutchumma Ditch and Barton Cut, Lindsay-Strathmoore Irrigation District 5099 January 16, 1926

MISSING 5100_5999

Wutchumma Canal near County Park above junction with Barton Cut, Lindsay-Strathmoore Irrigation District 6000

Whitewater River sand box at head of Stevens Canal showing sluicing of sand 6001_6004

Gage canal showing stop plank above outlet for cleaning screen above Arlington Ave 6005

Gate canal - view upstream from weir #2, Sta. 49 and 25 6006

Gage canal - looking upstream from Jane Street screen, Sta. 140 and 19 6007

Gage canal, #12 flume 6008

Nye bulkhead for outlet Sta. 56 and 93 6009

Gage canal, looking downstream from weir #2, Sta. 49 and 25 6010

MISSING 6011_6013

Whitewater River showing character of cemented sand coating on bed of stream 6014

Whitewater River check dam of Coachella V. Co. W. District 6015_6018

Lindsay Strathmore Irrigation District, Merryman Canal - March 1926 6018A_6018D

Clearing flume 6018A

Putting in new sides of flume 6018B

Raising sides of old flume 6018C

Showing trimming for new flume, old floor in place 6018D

Flume on Merryman Canal through Baier vineyard 6018E_6018F

Kaiweah River - view downstream of Three Rivers gaging station 6018G

Timber flume on Merryman Canal 6018H

Same as no. 6018H - dismantled steel flume in background 6018I

Timber flume on Merryman Canal 6018J_6018K

Merryman Canal 6018L

Same as no. 6018L - improved to 50' capacity 6018M

Merryman Canal 6018N

Improved to 50' capacity 6018O

Mohawk Valley Irrigation District - 6019_6026 April 1926

Alfalfa field, Blalack Ranch - lower Gila Valley, Ariz. 6019

Blalack Ranch - lower Gila Valley, Ariz. 6020

Well #1 6021

Bradley Ranch - lower Gila Valley, Ariz., showing pecan trees interplanted with cotton 6022

Blalack Ranch 6023

Blalack Ranch, showing luxuriant growth of staple grains in this Gila River bottom 6024

Hovatter Ranch near Wellton, Ariz. An alfalfa field in the Gila River bottom which has been irrigated for the past six years with well water containing B432 grains of mineral salts per million. The crop is in most excellent condition and the ranch books show a net profit from alfalfa and seed of $125 per acre during the past year 6025

Wrigh Ranch - lower Gila Valley Ariz. This is the first crop grown on this ranch 6026

NO TITLE 6027_6029

Lindsay-Strathmoore Irrigation District 6029A_6029P

Whitewater - view of lands formerly irrigated under old ditch just below Tunnel Point 6030

Same as no. 6030 - showing ditch leading to field shown above 6031

Old ranch house - Whitewater 6032

Stockton - gaging station on Calaveras River near Jenny Lind 6033

Mohawk Valley Irrigation District 6033A_6033E

Southern Pacific RR bridge over the Gila 6033F

Fullbrook Irrigation Co. - 6034_6051 August 30, 1926

Intake dirt ditch - Lake Reservoir, Santa Margarita Ranch 6034

Ysidora Valley 6035

Well #10 6036

House south of Well #7 6037

Well #8 6038

Well #9 6039

Looking northeast at Well #16 6040

Outlet lake reservoir 6041

Orange grove on Sierra sandy loam near Elsinore 6042_6043

Low flow Santa Margarita River near intake Lake Reservoir 6044

Grain field - Vail Ranch 6045

Orchard on Sierra sandy loam, Riverside Co. 6046

Drain ditch, Santa Margarita Ranch 6047

Reservoir, Vail Ranch 6048

Nigger Canyon gaging station 6049

Nigger Canyon Dam site 6050

View of river east from highway bridge, Vail Ranch 6051

Gunite on steel pipe, Sweetwater System 6051A_6051F

Spreading works on San Antonio Wash 6052

Concrete flume in Sutter County 6053

Kennett Dam site on the Sacramento 6054

Philbrook Dam - caterpillar and cars and Fordson tractor 6055

Philbrook Dam - earth mover 6056_6057

Lindsay-Strathmoore Irrigation District, Mackay Point weir 6057A_6057C

Experimental sections of gunite pipe - Laguna Beach, Calif. 6057D_6057I

Testing gunite pipe sections at Laguna Beach, Calif. 6057J

Shooting experimental sections of gunite on pipes - Laguna Beach, Calif. 6057K

Shooting gunite on 30" steel pipe - Laguna Beach 6057L July 1926

Shooting 30" steel pipe - Laguna Beach 6057M July 1926

Pump house installation of the Natomas Reclamation District on the Sacramento River 6058_6059

Arrangement of intake of Natomas Reclamation District 6060

Fulsom Dam on American River 6061

Abutments of Montague Irrigation District Dam showing morainal material 6062_6063

Montague Dam site - view north 6064

Montague Reservoir site - view upstream 6065

Outlet to pump line, 36" - Lindsay-Strathmoore Irrigation District. (Scobey - 6065A March 1, 1927

Mohawk Valley Water Cons. District 6066_6076A

Mohawk Valley 6066

Moahwk Valley Levee 6067

Mohawk Valley Levee construction 6068

Mohawk Valley Levee construction - preparation of base 6069

Mohawk Valley lands 6070

Mohawk Valley Levee construction 6071

Mohawk Valley Levee construction - preparing base 6072

Yuma Mesa Distribution System 6073

Yuma Mesa Distribution Canal 6074_6076

Mohawk District headquarters 6076A

River protection 6077_6078

Lakeside Golfclub, Los Angeles River 6079_6080

San Gabriel River 6081_6083

Beaver Bend diversion, Palo Verde Valley 6084_6087

San Gabriel River bank protection work at mouth of San Gabriel Canyon 6088

Los Angeles River - view taken from Lankershim Bridge showing positions of set of Universal City on right bank 6089

Imperial Valley distribution canals showing manner in which excavation of silt has caused building up of banks of canals 6090_6092

Imperial Valley drain in soft land and irrigation flume crossing same 6093

Mohawk Irrigation - new well 6094

Henshaw spillway crest 6095_6096

Henshaw Dam wave action of gate 6097

Reservoir site south of Escondido 6098

Dam site south of Escondido 6099

Hodges Dam - jet from spillway 6100_6102

NO TITLE 6102A

Santa Anita Dam jet through construction - joint at base of dam 6103

Santa Anita Dam 6104_6105

Santa Anita Dam outlet gate 6106

Santa Anita Dam leakage through rock 6107_6108

Big Dalton 6109_6117

Right abutment and muck pile from shot lower left 6109

Muck pile from shot 6110

View of left abutment 6111_6112

Upper toe wall 6113

Leak at right abutment 6114

Fill for main dam 6115

Upper toe wall 6116

Fill and spoil bank 6117

Imperial Irrigation District 6118_6120

Skip at intake 6118_6119

Levee at head of Bee River 6120

Fallbrook Irrigation District. Effect of Flood of 6121_6133B February 1927

Santa Marguerita flood channel - view southwest from hill about three miles below ranch house 6121

Same as no. 6121 - view north 6122

Same as no. 6121 - view northeast 6123

Same as no. 6121 - view east 6124

View west to ranch house 6125

View northwest to ranch house 6126

View from road across Former Meadows about 1 1/2 miles east of ranch house 6127

NST 6128

View west of valley - taken from point near reservoir dam 6129

Former Meadows, east of ranch house - canal in foreground 6130

View of flood channel northwest of reservoir - view northwest 6131

View upstream from point northwest of dam 6132

Vail Ranch, upper end of Temecula Valley - view south along road showing new flood channel. Old bridge at far side of wash 6133

Hodges Dam, at 1:30 p.m. - gage height reading, 126.50; depth to spillway, 115.00; depth of spill, 11.50 ft 6133A February 16, 1927

Fairbanks Development Co., Fairbanks, Alaska 6133C_6133Y

Chatinaka River camp 6133C December 30, 1926

Thawing Chatinaka siphon 6133D November 12, 1926

Thawing power plant 6133E October 6, 1926

Belle Creek camp 6133F February 22, 1927

Moving camp 6133G February 13, 1927

Pipe in glacier at Belle Creek 6133H February 18, 1927

Bent heaving in pond, Cleary siphon - max. heaving, 3'7" 6133I April 14, 1927

Anchor 15 A2 showing glacier around anchor 6133J April 14, 1927

Crooked Creek, left limit 6133K_6133L April 16, 1927

Right limit, Crooked Creek 6133M April 16, 1927

Chatinaka Siphon Bridge 6133N April 16, 1927

Anchor left limit - Cleary 6133O April 19, 1927

Showing expansion joint, Crooked Creek siphon 6133P April 16, 1927

Right and left limit - Chatinaka 6133Q May 21, 1927

Looking from left limit to outlet of Belle Siphon 6133R May 24, 1927

Crooked Creek 6133S May 21, 1927

Ice lens in muck - McKay Creek 6133T June 8, 1927

McKay anchor 6133U June 8, 1927

Power plant 6133V June 14, 1927

Chatinaka siphon showing bridge pier 6133W December 30, 1926

Chatinaka siphon - hauling visitors uphill 6133X December 30, 1926

NST Plaque to honor Wilbur Fisk McClure 6133Y

Kellner Jetty - Santa Ana River 6133Z

16' Kellner Jetty - Santa Ana 6133AA

Kellner Jetty on Alamo Canal 6133AB_6133AC

Views of excavation for left abutment of Sutherland Dam 6134_6137 1927

Pacoima Dam 6138 August 2, 1927

Views of earth work at Henshaw Dam 6139_6145 August 8, 12, 1927

River control - Mohawk Municipal Water Conservation District 6145A_6145C

Henshaw Dam 6146_6152 September 1927

Mr. John Treanor's house - San Diego County 6153_6158

Los Angeles County flood control 6159

Los Angeles County flood control works 6160_6167 1927

Sutherland Dam 6168_6174 1928

San Gabriel gravel beds 6175_6177 January 1928

Henshaw Dam 6178_6184D January 1928

Wutchumma Canal gaging station at intake 6185

Los Angeles County flood control - Big Dalton Dam, east abutment 6186 March 1928

Los Angeles County flood control - Big Dalton Dam, foundation for buttress #2 6187 March 1928

Los Angeles County flood control - Big Dalton, left abutment 6188 March 1928

Mohawk District - 6189_6193 March 1928

Showing improper position of anchor 6189

River bank protection, showing way in which 20' tripod has sunk 6190_6191

Successful bank protection 6192

Successful bank protection - the lower cut 6193

Coolidge Dam 6194_6196 March 1928

Beardsley Project - 6197_6211 March 1928

Diversion dam - Marinette Canal 6197

Headworks tunnel - Marinette Canal showing filling with sand 6198

Cleaning Marinette Canal below intake 6199

Right abutment, Swenson Dam site 6200_6202

Left abutment, Swenson Dam site 6203

Spillway site 6204

Swenson Dam site showing gap requiring supplemental dam 6205

View looking north, Swenson Reservoir site 6206

Probably view looking downstream from left abutment, Swenson Dam 6207

Main canal 6208

Road crossing main canal 6209

Flume on fill about mile 10 6210

Project lands prepared for cultivation 6211

Roosevelt District showing flume crossing Agua Fria River 6212_6214

Same as no. 6214 - showing expansion joints in girders and flume 6215

St. Francis Dam disaster 6215A_6215I March 12, 1928

Coolidge Dam 6215J_6220

Horse Mesa 6221

Morman Flats Dam 6222

NO TITLE 6223

St. Francis Dam disaster 6224_6237

View upstream showing the contact between the schist and sandstone about halfway across opening to right of wing wall 6224

NST 6225_6227

Same as no. 6224 6228

View of drainage basin and long wing wall showing narrow sandstone ridge 6229

View up reservoir site morning after failure showing drainage water from hills 6230

Slip along margin of reservoir following drop in water levels 6231

View downstream showing right abutment 6232_6233

Same as no. 6231 6234_6235

View below dam site showing high water mask on canyon side 6236_6237

Coolidge Dam 6238_6242 March 1928

Pacoima Dam 6243_6248

Pacoima Dam 6249_6250 April 13, 1929

Showing broken condition of rock along arch ring east side Big Dalton Dam 6251

Abutment excavation east side Big Dalton Dam 6252

Fractured rock in abutment - east side Big Dalton Dam 6253

Cucamonga Creek spreading works 6254_6256 May 1928

Big Dalton 6257_6258

Pacoima Dam - upper left abutment 6259_6266 May 1928

Rancho Santa Fe 6266A

Caribous on ridge - Chatinaka River, Alaska 6266B

Black bear waiting for lunch time 6266C

U.S. Creek siphon 6266D

Placing expansion joint 6266E

Chatinaka River siphon 6266F

Boston Creek siphon 6266G

Fairbanks, Alaska 6266H_6266L

Sourdough siphon 6266H

Load testing, power plant 6266I

Dam 6266J May 16, 1928

NST 6266K

Goldstream Dredge 6266L

NO TITLE 6267_6268

Concrete flexible mat, San Antonio Wash 6269

Pumice deposit near Fresno, Calif. 6270_6273

Lafayette Dam 6273A_6273C

Lake Pleasant Dam - Phoenix, Ariz 6274_6279A 1928

Beardsley Project 6279B_6279Q

Coolidge Dam at Gila River, Arizona - showing tile of strata, details and upper face of dam 6279R

Coolidge Dam, lower side of dam showing power house 6279S

Coolidge Dam, front face downstream showing power house and beginning of one spillway 6279T

Roosevelt Dam - Salt River, Ariz., general view 6279U

Coolidge Dam, Gila River, Ariz. - showing tilt of rock strata, bridge to outlet works, etc. 6279V

Mormon Flat Dam - Salt River, Ariz., general view of dam, power house and spillway. In the distance may be seen the slide also shown in no. 4714. This gives a side view of it and a notion of the original and final slopes can be formed 6279W

Lake Pleasant Dam, Ariz. - general view 6279X

Lake Pleasant Dam - view from the right bank showing finish at the top 6279Y

View from the right-hand bank showing upstream side of dam with about 50' of water back of it 6279Z

Lake Pleasant Dam - downstream close-up view of pier and arches showing forms used in construction which have been left in place. These buttresses are hollow and many of them are cracked 6279AA

Another view of the front from the right bank 6279AB

Lower Otay Dam - San Diego, Calif. 6279AC

Bank protection on the Hassayampa 6280

Water measuring device - Salt River, Ariz. 6281_6284

Fairbanks, Alaska 6284A_6284AA

Ice blister - the ice here shown is probably 12 to 14 ft. thick 6284A

Broken blister 6284B

Steam thawing for piling Chatinaka siphon 6284C_6284D

Ice blister 6284E

Siphon anchor 6284F

Collapsed pipe on Bell Creek 6284G

Typical penstock 6284H

Dam during construction 6284I

Steam thawing for power plant 6284J

Excavation for siphon anchor 6284K_6284L

Surveying party 6284M

Steam thawing for power plant 6284N

Surveying party in the field 6284O

Pile bents - Cleary siphon before provision was made to prevent heaving. Maximum heaving during first winter was 3'2" 6284P

Chatinaka siphon - 8300' long, 585' head 6284Q

Davidson Canal intake and dam on Chatinaka River 6284R

Collapsed pipe, Bell Creek siphon 6284S

Three hinged arch across Chatinaka River 6284T

Upper Cleary. It is reported that $23,000,000 has already been taken out of this area 6284U

Dome from ridge top 6284V

Thawing of Cleary area preparatory to dredging 6284W

Davidson Canal near Bell Creek 6284X

Cleary Dredge 6284Y

Gilmore Dredge. Note ice and pond 6284Z

Davidson Canal and Chatinaka River near Caribou 6284AA

Hamburg's new water tower 6284AB

Hodges Reservoir, multiple arch dam 6284AC November 10, 1928

Hodges Reservoir spillway, 1:30 p.m., February 16, 1927. Depth over spillway, 11'8". Drainage area 303 sq. mi. Discharge estimated about 45,000 sec. ft 6284AD_6284AE

Dallas water works, spillway in earthen dam 6285

Devil Canyon - City of San Bernardino spreading works 6286 April 1929

Devil Canyon - City of San Bernardino water supply 6287 April 1929

Cave Creek Dam, Ariz. 6288

Dallas water works, storage dam and rip rap face on gravel 6289

Dallas water works, storage dam. Note 12 to 1 fill on toe 6290

Lindsay-Strathmoore Irrigation District 6290A_6290E

Flooded country road just below Martin Ranch. (Pictures taken by A.E. Trenkin - 6290A July 9, 1927

Another stretch of country road flooded west of J.D. Martin Ranch 6290B

NST 6290C

Picture #4 showing water being held up in Cottonwood Creek at west side of Martin Ranch 6290D

Picture #5 taken above bridge showing stretch of Cottonwood Creek upstream from where #4 was taken 6290E

Mohawk Municipal Water Conservation District 6291_6296

400 ft. west well 6291

40 ft. east and 100 ft. south 6292

4 ft. east of 1/4 cor. 9-10 6293

40 ft. east and 100 ft. north, Sec. cor 6294

NST 6295

Puddingstone Reservoir 6296