Sedimentation in Mud Mountain Reservoir at High Discharge

by Brad Hall, U.S. Army Corps of Engineers, United States,
James Lencioni, U.S. Army Corps of Engineers, United States,



Document Type: Proceeding Paper

Part of: Sediment Transport Modeling

Abstract:

Mud Mountain Dam is a single purpose flood control project completed in 1948 on the White River in the State of Washington. The White River drains the northern and northeastern slopes of Mount Rainier. The sediment inflow to the reservoir is very high, and varies in composition between fine sand and silt carried during the glacial melt periods in the summer months, and large sand, gravel, and cobble during winter storm events. Modifications to the existing reservoir intake tower and outlet works are being designed to ensure flood control and reservoir drawdown capability during major flood events. A critical parameter in the design of the modifications was identifying the amount and depositional pattern of sediment inflow in the reservoir during major flood events.

Subject Headings: Reservoirs | Sediment | Floods | Sediment transport | Rivers and streams | Hydraulic design | Mud | Washington | United States

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