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END OF CONSTRUCTION UPDATE





Priest Lake Outlet Dam - February 16, 2024

Construction at the dam by Northbank Civil and Marine is wrapping up with some final tasks, such as rock placement and gate seal work.  Northbank has begun the process of demobilizing.  Normal gate operation is expected to resume by early next week.  As you are likely aware, the construction limited the flow through the dam to a maximum of 800 cfs over the winter months.  At the same time, rain-on-snow and warmer temperatures led to significant inflow into the lake.  This combination of circumstances caused lake levels to increase through the winter months.  The current lake level is 2.53 feet.The plan for the next few weeks is to bring the lake level down to approximately 1.5 feet and to hold that level while monitoring the Snotel sites. 

Drought conditions are predicted to continue in Northern Idaho through September.  Subsequent gate operations and lake level management will depend on the speed at which the runoff comes out of the Priest River basin.

IDAHO DEPARTMENT OF WATER RESOURCES

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