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Show ( 18) Layout Tunnel Layout Tunnel was holed through in July 1972, and concrete lining is expected to be completed by November 1973. The tunnel would carry water 3.3 miles through the high ridge from Layout Creek to Water Hollow Creeko The inlet portal is reached by an existing road along Currant Creek to Layout Creek, then up Layout Canyon along a jeep road which has been improved for about 1.1 miles. The outlet portal is reached by an improved road along Currant Creek and Water Hollow. The material excavated from Layout Tunnel was deposited in Water Hollow Canyon, slightly downstream from the outlet portal. ( 19) Water Hollow Diversion Structure and Feeder Pipeline Water Hollow Diversion Structure and Feeder Pipeline, completed in November 1972, are located on Water Hollow Creek about 4 1/ 2 miles upstream from its confluence with Currant Creek. The feature is accessible by a graveled road recently improved by the Bureau of Reclamation for access to the inlet portal of Water Hollow Tunnel. The dam is located about 750 feet upstream from Strawberry Aqueduct,, Water Hollow Diversion Structure is a reinforced concrete structure, consisting of a 25- foot- long overflow weir section, a sluiceway and bypass channel, and a headworks. Protective dikes extend from the diversion dam to each side of the hollow. The headworks are controlled by slide gates which regulate discharge into Water Hollow Feeder Pipeline. Water Hollow is a fairly narrow, steep- sided canyon. The feeder pipeline is located along the canyon bottom. It extends from the diversion dam to the Strawberry Aqueduct, joining it at the inlet portal access structure of Water Hollow Tunnel. There are two meters located in a structure just downstream of the intake. A powerline to serve the structure has been completed. ( 20) Water Hollow Tunnel Water Hollow Tunnel was completed in June 1971, and water from Water Hollow Creek was diverted into the tunnel beginning in December 1971. The 4.1- mile- long tunnel, which begins at Water Hollow Creek and ends at Strawberry Reservoir, is the terminal section of Strawberry Aqueduct. 57 |
