UNITED STATES DEPARTMENT OF THE INTERIOR BUREAU OF RECLAMATION Wilbur A. Dexheimer, Commissioner L. N. McClellan, Assistant Commissioner and Chief Engineer TECHNICAL RECORD OF DESIGN AND CONSTRUCTION TRENTON DAM Constructed 1949-1953 Meeker-Driftwood Unit Denver, Colorado 1957 Type: Zoned rolled-earth fill Height: 144 feet above lowest ex- Crest length: 8,600 feet Downstream, 10 to 1 to elevation 2710, 4 to 1 to elevation 2735, 2-1/2 to 1 to elevation 2760, and 2 to 1 to elevation 2793 Dam (Continued) Main cutoff trench: 50-foot base width with 1-1/2 to 1 side slopes, length about 6, 760 feet Auxiliary cutoff trench: 50-foot base width with 1-1/2 to 1 side slopes, length about 570 feet Spillway Type: Concrete overflow chute type with stilling basin Crest length of overflow section: 126 feet Crest: Elevation 2743.00 Maximum discharge: 126, 500 secondfeet at water surface elevation 2785.6 (as determined by model studies) Gates: Three, 42 by 30 feet Stilling basin: Reinforced concrete with dentated sills River Outlets Outlets: Two Invert: Elevation 2710.00 Gates: Four, 6 by 7.5 feet (two are installed in each outlet) Discharge capacity: 1,000 second-feet with reservoir water surface elevation at 2720.0 Canal Outlet Works Intake structure: Vertical shaft: 50 feet high Sill elevation: 2710.00 Outlet conduit: 5 feet 6 inches in diam- Outlet pipe: 56-inch-diameter pipe in |