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1176 - 1200 of 2123 Items << < 43 44 45 46 47 48 49 50 51 52 > >>
1176 - 1200 of 2123 Items << < 43 44 45 46 47 48 49 50 51 52 > >>
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Pulling steel piling in the removal of the cross river cofferdams. The greater part of the steel piling was removed when the cofferdam earthwork was above the water surface.
1938-01-05
2024-11-23 |
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Looking south (upstream) after flooding west end of dam foundation - showing the four main diversion slots, the timber plug between blocks 49 and 50 to cells in section "G" of west cofferdam and to the right the east end of west powerhouse. Center...
1936-11-20
2024-11-23 |
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Three such draft tube outlet portals as seen here permit the spent water to pass from each turbine in the powerhouse into the tailrace. The floor upon which the workman is standing is at elevation 896. To permit dewatering of the turbine pits...
2024-11-23
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Here steelworkers are closing the MWAK high trestle above one of the deep crevasses in the east side bedrock. The zig-zag trough system, with the long rubber and canvas tube or "elephant trunk" on the end, seen inside the left tower prevents the...
1937-04-01
2024-11-23 |
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Disconnecting switches in the 115,000-volt circuit between the L-1, three-winding transformers and the switch yard.
1942-10-21
2024-11-23 |
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6900-volt switchgear XLS panels in the station service bay of the left powerhouse.
1941-01-22
2024-11-23 |
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The transformer deck (at left) for the right powerhouse, under construction.
1941-12-29
2024-11-23 |
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Rubble masonry retaining wall for the future parking area near the right abutment of the dam.
2024-12-23
2024-11-23 |
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The two ends of west cofferdam removed and area west of block 40 flooded.
1936-11-20
2024-11-23 |
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Government Camp across the river. Pier 3 for highway bridge under construction - top of pier 2 (east side) in foreground.
1935-04-25
2024-11-23 |
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Contractor's employees receiving their "brass" in going on shift at west guard office.
1936-07-17
2024-11-23 |
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Album leaf 125: Wooden fabrication on side of dam, 6/29/37<br><br>PH Coll 238.125
2024-11-23
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Excavation for copper cable grounding mat on west tailrace slope
1935-11-08
2024-11-23 |
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First 30 houses under construction in Government Camp.
1935-01-03
2024-11-23 |
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Government Camp looking up Douglas Avenue toward Administration Building.
1935-03-29
2024-11-23 |
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Storage of aggregate at mixer stock piles - capacity 90,000 tons, or a 3 1/2 day run at maximum concrete output.
1935-04-27
2024-11-23 |
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Camp Keller, a 375-man W.P.A. camp, located about 21 miles above the dam.
1939-07-25
2024-11-23 |
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An aerial view of the pumping plant foundation excavation early in 1939. The bench in front of the discharge tunnels has been partially excavated to the final grade, elevation 1163.
1939-04-01
2024-11-23 |
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Album leaf 302: Spanning tower, 4/8/38
PH Coll 238.302
2024-11-23
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Upstream cross-river cofferdam extending from east bank.
1936-09-27
2024-11-23 |
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Album leaf 408: Three men on top of beams, 7/28/1938
PH Coll 238.408
2024-11-23
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Government camp - basement of Administration Building in foreground. Mason City across river.
1935-02-26
2024-11-23 |
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Airplane tripper for unloading finished aggregate at mixing plant stock piles - laminated timber tunnel ready for one set of two parallel piles.
1935-09-03
2024-11-23 |
