Teton Dam Construction photographs, 1971-1976

Page 1a: Two Color Photos [10/5/71] View of middle portion of right abutment and canyon bottom. [7/19/72] View of sluicing operation on zone 2 blanket area. Page 1b: Two Color Photos [7/19/72] View of zone 2 material being washed into cracks in rock to insure all voids are filled. [8/8/72] Looking into cavern at station 31+70 elevation 5267 in Foundation Keyway trench.

Page 2a: Three Color Photos [7/19/73] View of right abutment showing keyway and grout cap trench, also Zone 5 stockpile. [8/17/73] View of water seeping through pervious material above clay bed at Station 19+00, 50 feet upstream from centerline of dam. [10/16/73] General view of the bottom of the cutoff trench. Page 2b: Three Color Photos [10/16/73] Bottom of cutoff trench, Station 18+75 to 18+25. [2/15/74] View of open fissure at station 4+20, downstream side of foundation cutoff trench. [2/15/74] View looking into fissure at station 4+38, upstream of foundation key trench.

Page 3a: Three Color Photos [2/15/74] View of foundation key trench, station 6+10, looking toward station 1+95. Note rough and irregular rock. [undated] View of foundation key trench from about station 1+85, looking towards 8+00. [4/29/74] An aerial view of the zone 1 embankment placement operations taken from above the left abutment looking northward toward the right abutment. Page 3b: Three Color Photos, with handwritten correction of 6a. [2/26/74] View of fault that crosses the grout cap at station 3+55 taken from station 3+65 looking downstream along fault. Handwritten note corrects the use of "fault" to "fissure." [2/22/74] View of excavated grout cap taken from stations 3+15 looking towards 2+00. [3/1/74] View of opening in the side of the grout cap at station 5+25.

Page 4a: Three Color Photos [7/22/74] Right abutment of Teton Dam. Grout leaks are visible to the left of the grout cap from elevation 5030 to 5090. [9/24/74] View of right abutment, 75 feet downstream of grout cap, elevation 5095, showing cleanup of rock face and shot holes. [11/6/74] Right abutment key tunnel showing rock condition at station 14+65 to station 14+85 elevation 5129 upstream side. Page 4b: Three Color Photos [11/6/74] Grout cap and key trench bottom with fill at station 14+65 elevation 5129. [11/6/24] Right abutment key trench showing rock conditions at station 14+65 elevation 5129 downstream side. [11/6/74] Right abutment key trench downstream side with rock condition between station 14+95 to station 15+10 at elevation 5129.

Page 5a: Three Color Photos [11/14/74] Rock face upstream side key trench showing station 14+30 to station 14+70 at elevation 5138+. [11/14/74] Grout hole at station 14+65 92' upstream at elevation 5143.0. This is typical of the voids found in both abutments of the zone one area of the dam. [11/14/74] Grout cap in the right abutment key trench. Page 5b: Three Color Photos [11/14/74] Downstream side of the right abutment key trench zone 1 embankment is at elevation 5138, Station 14+45 to Station 14+65, right to left. [10/16/74] View of right abutment key trench upstream rock face showing rock between station 13+00 and station 13+50. [2/14/75] Excavated grout cap trench in the right abutment key trench station 9+25 to 9+90 showing jointing and flow planes which cause the blocky excavation.

Page 6a: Three Color Photos [7/22/74] Grout leaks on the right abutment of Teton Dame and pools of grout on the zone 1 embankment, elevation 5030.0 to 100 feet downstream of the grout cap. [7/22/74] Grout leaks on right abutment 200 feet downstream of grout cap. [5/11/75] Right abutment key trench showing rock cleanup and condition at station 3+65 centerline looking upstream, wall showing crack in rock. Page 6b: Three Color Photos [5/11/75] Right abutment key trench showing rock cleanup and condition at station 3+80 5' downstream looking toward station 4+25. [6/3/75] Dam embankment right abutment keyway showing rock condition and cleanup. [9/2/75] Right abutment from 60' downstream to centerline showing rock face cleanup and condition.

Page 7a: Three Color Photos [9/2/75] Right abutment from 25' upstream to 40' upstream showing rock face cleanup and condition. [9/2/75] Right abutment from 40' upstream to 60' upstream showing rock face cleanup and condition. [9/2/75] Right abutment from 125' upstream to 155' upstream showing rock face cleanup and condition. Page 7b: Three Color Photos [undated] Right abutment rock face from 15' downstream to 70' downstream showing rock condition and cleanup. [9/10/75] Right abutment rock face from 60' downstream to 100' downstream showing rock condition and cleanup. [9/10/75] Right abutment rock face from 140' upstream to 115' upstream showing rock condition and cleanup.

Page 8a: Three Color Photos [9/10/75] Right abutment rock face from 80' upstream to 75' upstream showing rock condition and cleanup. [9/23/75] Right abutment from 10' downstream to 50' downstream showing rock face cleanup and condition. [6/5/76] View of right abutment and leak in dam as seen from the north-west corner of the powerhouse. Page 8b: Three Color Photos [6/5/76] View of the leak at the right abutment showing the water coming out of the rock into the riprap stockpile. [6/5/76] A close-up view of the water running out of the right abutment. [6/5/76] View of the downstream face of the dam after the second leak started.

Page 9a: Two Greyscale Photos [10/5/71] View of downstream portal of River Outlet Works. [10/5/71] View of bottom of canyon at dam axis. Page 9b: Two Greyscale Photos [10/5/71] View of Test Pit C-202. [10/5/71] View of Test Pit C-201.

Page 10a: Two Greyscale Photos [10/25/72] View of grout cap excavation station 11+60 to 11+85 in Foundation Key trench. [10/25/72] Workers are scaling Foundation Key trench walls between station 11+95 to 12+50. Page 10b: Two Greyscale Photos [1/18/73] View of Foundation Key trench in right abutment. [2/1/73] View of unstable rock conditions caused by undercutting by contractor above right abutment access road approximately 300 ft. upstream from station 15+00 on right abutment Keyway.

Page 11a: Two Greyscale Photos [2/22/73] View looking down Foundation Key trench on right abutment from approximate station 12+00 to 14+00. [2/8/73] View of two laborers scaling loose rock approximately 100 ft. upstream of station 13+00 on Foundation Keyway. Page 11b: Two Greyscale Photos [3/20/73] View of rock conditions on the right abutment taken from about Station 14+75, 75 feet upstream of the foundation key trench. [3/20/73] View of rock conditions on the right abutment at about Station 15+00, center line of the foundation key trench looking up station.

Page 12a: Two Greyscale Photos [3/20/73] View of Contractor's employees using an air hose to remove loose rock from the grout cap excavation at about Station 13+50 of the grout cap in the foundation keyway trench on the right abutment. [6/28/73] View of Grout Cap Tench in right keyway trench area Station 11+50 to 12+60. Page 12b: Two Greyscale Photos [6/25/73] View of right keyway trench and cutoff trench, Station 11+50 to 22+50, centerline of dam. [6/25/73] View of downstream wall of right keyway trench.

Page 13a: Two Greyscale Photos [6/25/73] View of upstream wall of right keyway trench. [6/26/73] View showing placement of Zone 2 material, Station 17+50 to 18+50 100 feet to 600 feet downstream from centerline of dam. Page 13b: Two Greyscale Photos [7/2/73] View of keyway trench on right abutment, and Zone 5 and Zone 2 excavation in cutoff trench. [7/11/73] View of right abutment after Zone 5 material has been removed and scalers are cleaning up.

Page 14a: Two Greyscale Photos [7/12/73] View of grout cap trench, Station 11+31.8 to 11+42.5 showing "J" bars after being grouted in place. [7/16/73] View of grout cap trench after concrete has been placed, Station 10+31.8 to 11+42.5. Page 14b: Two Greyscale Photos [7/19/73] View of right foundation keyway trench and Zone 5 stockpile, also showing portion of spillway area. [7/19/73] View of where Zone 4 material has been excavated down to bedrock overhand, Station 17+50 to 17+75 from 100 feet upstream to 300 feet upstream from centerline of dam.

Page 15a: Two Greyscale Photos [8/8/73] View of right abutment showing overhanging rock ledge at Elevation 5006.0 before being shot. [8/9/73] View of right abutment and cleaning up work still being done. Page 15b: Two Greyscale Photos [8/13/73] View of right abutment and two air drills line drilling overhanging rock ledge. [8/21/73] View of clay layers approximately 20 feet upstream from centerline of dam, Station 19+50 to 18+75.

Page 16a: Two Greyscale Photos [8/21/73] View of water seeping out of pervious material (sand and gravel) above clay bed, 210 feet upstream from centerline of dam, Station 22+30 to 22+50. [9/27/73] View of the cutoff trench showing grout cap complete across bottom. Page 16b: Two Greyscale Photos [9/17/73] Grout cap trench, Station 17+80 to 19+20. [8/22/73] View of grout cap trench after drilling, Station 17+50 to 17+75.

Page 17a: Two Greyscale Photos [9/26/73] View of Contractor getting ready to place concrete in grout cap trench Station 16+49 to 16+28. [10/24/73] View of laborers hand compacting backfill around toe drain pump sump at Station 19+70, 175 feet upstream from center line of dam. Page 17b: Two Greyscale Photos [10/9/73] View of grout cap looking toward right abutment in Cutoff Trench. [10/18/73] View of second load of Zone 1 material placed in Cutoff Trench with conveyor contractor has set up.

Page 18a: Two Greyscale Photos [10/15/73] View of workmen cleaning rhyolite in bottom of Cutoff Trench. [10/15/73] Bottom of cutoff trench and right abutment, wall at approximately Station 17+75, 150 feet upstream to 100 feet upstream from centerline of dam. Page 18b: Two Greyscale Photos [10/31/73] View of laborer cleaning up in rock along grout cap at Station 17+55, 100 feet upstream from centerline of dam. [11/1/73] View of laborer compacting Zone 1 material along right abutment with plate tamper.

Page 19a: Two Greyscale Photos [10/16/73] View of bottom of cutoff trench station 18+00 to 17+75. [2/14/74] View of keyway trench open rock joint at station 4+16, downstream side of keyway, elevation 5256.0. Page 19b: Two Greyscale Photos [2/14/74] View of keyway trench open rock joint, looking inside hole at station 4+45, upstream setting, 2 feet inside looking into hole. [2/14/74] View of keyway trench open rock joint at station 3+45, showing downstream side of keyway.

Page 20a: Two Greyscale Photos [2/27/74] View of centerline of grout cap and rock cavity on upstream side of keyway trench at station 3+55. [4/3/74] View of cleanup on bench below conveyor-tower, station 16+50 to 17+50. Page 20b: Two Greyscale Photos [4/4/74] View of contractor placing zone 1 material on bench at bottom of conveyor tower, station 16+50 to 17+50, centerline of dam to 200 feet upstream from centerline of dam. [4/5/74] View of zone 1 material compacted on bench below conveyor tower.

Page 21a: Two Greyscale Photos [4/8/74] View of compacting of zone 1 material on bench below conveyor tower with sheepfoot roller. [3/27/74] From 22+00, centerline grout cap looking at right abutment being cleaned off by labor crew. Page 21b: Two Greyscale Photos [4/25/74] View of final cleanup in keyway trench, station 3+00 to 4+50. [7/2/74] Hydraulic hammer used for special compactor along abutment and around tower supports.

Page 22a: Two Greyscale Photos [7/9/74] Crew cleaning up on walls of cutoff trench right abutment about station 4+75, downstream side. [7/24/74] View of right abutment facing station 15+00, 100 to 250 feet upstream showing loose rock on face. Page 22b: Two Greyscale Photos [7/25/74] View of tower at 9 a.m. on 7/25/74 showing damage to leg caused by Scraper #641 hitting it at approximately 2:30 a.m. on 7/25/74 graveyard shift. [7/11/74] Right abutment, elevation 5045 to elevation 5090, showing broken rock and traces of grout leaks from grout hole located 15+94 downstream curtain.

Page 23a: Two Greyscale Photos [8/13/74] View of right key trench showing cleanup completed by contractor. [8/16/74] View of rock face 200 feet upstream to 300 feet upstream showing abutment cleanup, right abutment. Page 23b: Two Greyscale Photos [8/16/74] View of rock face 300 feet to 400 feet upstream showing right abutment cleanup. [8/26/74] Right abutment keyway showing drill track on the grout cap and access starway on the upstream side.

Page 24a: Two Greyscale Photos [9/12/74] Void located at elevation 5085 on the left abutment 250 feet upstream of centerline. [10/11/74] Dam embankment from left abutment opposite of power-pumping plant. Page 24b: Two Greyscale Photos [10/11/74] Right abutment showing rock 260 to 300 feet upstream of centerline. [10/6/74] View of crack that required backfilling with grout, 250 feet upstream of centerline on left abutment, elevation 5106.

Page 25a: Two Greyscale Photos [11/14/74] View of open joints on the right abutment at elevation 5133, station 15+30, 250 feet upstream. [11/15/74] A void in the right abutment to be grouted at elevation 5140, 250 feet upstream, station 15+30. Page 25b: Two Greyscale Photos [11/14/74] View of open joint on the right abutment at elevation 5142, station 14+52, 90 feet upstream ready to be grouted. [4/10/75] Grout Cap - Station 10+25 showing close up of open joint in rock.

Page 26a: Two Greyscale Photos [5/27/75] View of D-8 cat tractor with scarifier. [5/27/75] Left abutment zone 1 - Labor using a hand-held air driver compactor to compact zone 1 material up to rock face of downstream left abutment. Page 26b: Two Greyscale Photos [5/29/75] Euclid end dump loaded with rock and earth being used for special compaction on zone 1 material next to rock face of the right abutment. [6/13/75] Right abutment key trench showing D-9 Cat dozer with sheep foot roller and Cat 966 front end loader placing zone 1 mat in trench.

Page 27a: Two Greyscale Photos [5/8/75] Downstream right abutment and zone 1 showing workmen cleaning up the abutment for 1 material. [6/16/75] Right keyway station 4+20 showing caves in downstream wall bring back filled with concrete using crane and 2 cu. yd. bucket. Page 27b: Two Greyscale Photos [7/17/75] View of the right abutment key trench, station 8+50, looking towards auxiliary outlet works tunnel access shaft and spillway inlet. [7/9/75] Right abutment keyway trench being backfilled with compacted Zone 1 material.

Page 28a: One Greyscale Photo [undated] Right key trench showing workmen cleaning up rock face station 9+25 prior to the placement of zone 1 in the key trench.