Diamond Fork Hydroelectric Power Developmentby Stephen J. Navin, (M.ASCE), Ralph M. Parsons Co, Pasadena, CA, USA,
Harvey L. Hutchinson, Ralph M. Parsons Co, Pasadena, CA, USA,
Abstract: The Strawberry Valley Project was conceived in the early 1890s as an irrigation project to supply a maximum of 635 cfs of water from the Strawberry Reservoir through a 3. 8-mile-long tunnel to the Diamond Fork Drainage of the Spanish Fork River for summer irrigation at the south end of Utah Lake. The tunnel was constructed between 1906 and 1912. The original timber support has long since decayed leaving voids behind the tunnel lining. The impulse radar mapping and a detailed visual mapping program pinpointed the reaches of the tunnel needing repair. Rehabilitation methods proposed for the tunnel include an extensive contact grouting program using foamed cement/fly ash backfill grout placed from pumping plants up to 9,000 ft away and a new reinforced concrete lining.
Subject Headings: Tunnels | Hydro power | Power plants | Pumping stations | Rehabilitation | Linings | Irrigation | Mapping | Drainage | Utah | North America | United States
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