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 our day-to-day activities, in operating a facility like 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 and to comply with environmental legislation, rules, and  regulations.

We encourage environmental stewardship at every level throughout the organization.

Flow Update

September 30, 2022

Current conditions:

Koocanusa Reservoir elevation: 2448.86 feet 
Koocanusa Reservoir inflow: ~3.8 kcfs 
Libby Dam outflow: 6.3 kcfs 
Kootenai River elevation at Bonners Ferry: 1746.45 feet
Current Changes and Highlights:

- Libby Dam outflows will decrease to 5 kcfs over three hours beginning 23:00 MDT Friday September 30. 
- Libby Dam outflows will decrease to 4 kcfs over two hours beginning 00:00 MDT Sunday October 2. 

Libby Dam outflows will begin decreasing to a minimum flow 4.0 kcfs following the conclusion of September operations. The projected end of September elevation is expected to fall within the range of 2448.75-2449.0 feet. Outflows are expected to remain at 4.0 kcfs for the month of October.
Short term forecasts for Libby Dam elevations and inflow:
Short term forecasts for Libby Dam outflow:
Additionally, projected inflows and reservoir operations at Libby Dam through the fall can be found here: