Vallecito Dam Construction Project

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Upstream view in temporary diversion channel (1)
Looking upstream in temporary diversion channel from station 10+35. Cleaning of channel has been started. Bulldozer has made one pass through bottom of channel., Original photo number: Pine R - 354
Upstream view in temporary diversion channel (2)
Looking upstream in the temporary diversion channel soon after placing of compacted embankment had been started near the upstream toe of dam., Original photo number: Pine R - 355
Upstream view of bridge construction at downstream toe of dam
Looking upstream in the temporary diversion channel from a point on the right side of the log-crib drop. Bridge is being constructed by the contractor at the downstream toe of the dam., Original photo number: Pine R - 411
Upstream view of bridges in temporary diversion channel
Looking upstream in temporary diversion channel from a point about 100 feet upstream from a log-crib drop. Bridges are just outside of limits of embankment., Original photo number: Pine R - 440 a & b
Upstream view of cofferdam construction
Looking upstream at cofferdam construction in temporary diversion channel. Bridge is just upstream from toe of dam., Original photo number: Pine R - 416
Upstream view of embankment placing
Looking upstream across fill at sta. 15+20. The material shown being placed is clay coming from the downstream end of Borrow Pit No. 1. This material was left in the pit because of excess moisture content, but it has since dried out enough on the surface to permit taking a shallow cut with Le Tourneaus and using in No. 2 clay section of embankment., Original photo number: Pine R - 217
Upstream view of left spillway gate pier
Looking upstream in spillway gate structure at left pier, showing method of bracing forms., Original photo number: Pine R - 435 a & b
Upstream view of log-crib drop (1)
Looking upstream at log-crib drop carrying the full flow of the river which was estimated at 500 second feet., Original photo number: Pine R - 336
Upstream view of log-crib drop (2)
Looking upstream at log-crib drop carrying the full flow of the river which was estimated at 1800 second feet., Original photo number: Pine R - 337
Upstream view of partially completed log-crib drop (1)
Looking upstream at the partially completed log-crib drop in the temporary diversion channel., Original photo number: Pine R - 419
Upstream view of partially completed log-crib drop (2)
Looking upstream at partially completed log-crib drop in temporary diversion channel., Original photo number: Pine R - 421
Upstream view of right spillway gate pier
Looking upstream into right spillway gate pier form before reinforcement was placed. Note 30-inch diameter float well supply pipe in place., Original photo number: Pine R - 404

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