Cedar Falls Project-Rehabilitation with RCC

by William M. Verigin, California Dep of Water Resources, Sacramento, CA, USA,
Stephen A. Benson, California Dep of Water Resources, Sacramento, CA, USA,

Document Type: Proceeding Paper

Part of: Water Power '87


This paper presents an overview of the planning, design, and construction considerations used during the development of the 9. 1 m (30-foot-high) Cedar Falls Roller Compacted Concrete (RCC) Dam which replaced an existing timber crib dam as part of an extensive rehabilitation project for the City of Seattle's Cedar Falls Project. Originally constructed in 1902, the Project is located on the Cedar River in Western Washington 64 km (40 miles) southeast of Seattle. The Project provides municipal and industrial water supply and electrical energy for the City of Seattle. Important aspects described in the paper include design requirements for construction of a gravity dam on a soil foundation, appropriate laboratory testing and construction quality control methods for small RCC dams, and construction methods used to successfully maintain the economy of placing small volumes of RCC.

Subject Headings: Project management | Concrete dams | Construction methods | Gravity dams | Dam foundations | Occupational safety | Foundation design | Infrastructure construction | Washington | United States | Seattle

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