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Libby Dam

17877 Highway 37

Libby, Montana 59923-7828

Libby Dam Office (406) 293-7751 

Kootenai River Levels Recording (406) 293-3421

For Visitor Information contact the Visitor Center (406) 293-5577



Libby Dam

Libby Dam Project is a multi-purpose water resource development.  Its purposes are flood reduction, hydropower, recreation, and environmental stewardship. We recognize that our day to day activities in operating a facility such as Libby Dam have a direct impact on the environment. Our goal is to operate Libby Dam to minimize negative impacts on the environment through pollution prevention and mitigation, and we are committed to continual improvement.  Our commitment is to comply with environmental legislation, rules, and regulations. We encourage environmental stewardship at every level throughout the organization.

Flow Update

Nov. 30, 2017

Current Koocanusa Reservoir elevation: 2,437.0 feet
Current Koocanusa Reservoir inflow: ~ 7,000 cubic feet per second
Current Libby Dam outflow: 25,000 cubic feet per second
Current Kootenai River elevation at Bonner's Ferry, ID:  1,754.3 feet   

Libby outflows for the first week of December will be 25,000 cfs on weekdays (Mon-Fri) and 20,000 cfs on the weekend. Scheduled flow changes are as follows:

- Libby Dam outflows will remain at 25,000 cfs until Friday evening.

- Outflows will decrease to 20,000 cfs over two hours starting at 10 p.m. MST Friday Dec. 1.

- Outflows will increase to 25,000 cfs at 7 a.m. Monday Dec. 4.

- Outflows will decrease to 20,000 cfs over two hours starting at 10 p.m. MST Friday Dec. 8.

Short term forecasts for Libby Dam elevations and inflows: 

Short term forecasts for Libby Dam outflow:

Additionally, projected inflows and reservoir operations at Libby Dam through next summer can be found here:

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