Lake Youngs Intake - Seattle, Wash.
This project required construction of a steel intake pier 450 ft into an active drinking water reservoir. Our work included 500-tons of fabricated steel supported by 22 piles in four piers. The 175 ton, 50 x 100 ft pump platform was assembled in place before lowering 20 ft and driving piles. In completed form it has steel walls and floor, slide gates, a jib crane and 8 pumps manifold to twin 6 ft pipes back to the beach. The work required a trestle, sheet cell, sectional barges with a 165-ton crane and extensive silt curtains.