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<br />C?1/17 <br />. r""'~ <br /> <br />HAROLD D. ROBERTS TUNNEL - (Continued) <br /> <br />and conduits. into, the Denver .MuniCipal System. <br /> <br />Capacity: - Maxirmlln carrying capacity 788 cubic feet of water per second of <br /> <br />time. At this rate, the tunnel will deliver 1,563 acre feet a day <br /> <br />(509 million gallons) or approximately 47,000 acre feet a month. <br /> <br />Design: -, Length 23.3 miles, finished inside diameter 10 feet - 3 inches concrete <br /> <br />lined throughout. Difference in elevation between west and east portals, <br /> <br />179 feet. Will operate 1l1lder pressure after Dillon Dam is cons tructed. <br /> <br />This will permit the later installation of a 6,000 KW Hydro-Electric <br /> <br />Power Plant at the East Portal near Grant, Colorado. <br /> <br />Date of Completion of t1l1lnel set by contract, January, 1962. <br />