Terrace Reservoir Spillway Replacement

Category: Reservoir Improvements
Organization: Terrace Reservoir Irrigation Company, Inc
Date Approved: March 2012
Basin Funds: $75,000
State Funds: $1.425 million

This project included a demolition of the existing Terrace Reservoir spillway, construction to raise the existing saddle dike to the main Terrace dam crest elevation, and construction of a new, reinforced concrete labyrinth spillway control structure, chute, stilling basin, under-drain system, and grouted anchors. Piezometers, dam station markers, and a staff gauge were also included in the design.