An Evaluation of the Large Mammal Entry/Escape Steps Coachella Canal In-Place Lining Project

by Lawrence H. White, Bureau of Reclamation, United States,



Document Type: Proceeding Paper

Part of: Irrigation and Drainage

Abstract:

This study evaluated the effectiveness of a new system of large mammal entry/escape steps as part of the environmental investigations for the Coachella Canal In-place Lining Prototype, Imperial County, southeastern California. After a 1000-foot section of one side of the Coachella Canal was lined in-place, a live mule deer was led into the canal. Wildlife biologists made observations and documented the results. This test demonstrated that the steps were adequately designed to enable a mule deer to enter the in-place concrete-lined section of the Coachella Canal, drink while standing in flowing water, and exit the canal without sustaining injury. This design could be incorporated into future in-place lining projects. Further testing would be necessary to incorporate this design into other types of canal lining projects.

Subject Headings: Canals | Linings | Project management | Wildlife | Hydraulic design | Construction management | Concrete | California | United States

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