Project Phase 1: Study
The Priest Lake Water Management Study (Phase 1) was completed in February 2018. The study included the following recommendations:
- Temporarily raising the surface level of Priest Lake three to six inches during the recreational season of dry years and integrating real-time streamflow data to allow more operational flexibility.
- Outlet structure improvements to the scour apron, modifying and strengthening gates, and electrical gate operation.
- Replace the current existing porous breakwater with an impervious sediment retention feature and dredging a portion of the Thororfare channel.
Project Phase 2: Preliminary Engineering & Design
The work of Phase 2 is a continuation of the work, conclusions, and recommendations outlined in the Phase 1 report. Phase 2 project goals include managing lake levels (maintaining a three-foot level at the USGS outlet gage during the recreational season and developing lake level operational strategies during dry and low water years), maintaining minimum flow requirements downstream of the outlet dam, and providing sustainability for the Thorofare (promoting self sustaining improvements to improve Thorofare access, navigability).