US Army Corps of Engineers
Seattle District


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

August 30, 2019


Current Koocanusa Reservoir elevation: 2442.2 feet

Current Koocanusa Reservoir inflow: ~5 kcfs

Current Libby Dam outflow: 7 kcfs

Current Kootenai River elevation at Bonners Ferry: 1746.15 feet


Current Changes and Highlights:

- Libby Dam outflow will decrease from 7 kcfs to 6 kcfs on September 1st


Minimum releases will continue due to the dry year. Releases from Libby will decrease to the September minimum outflow, 6 kcfs, over one hour beginning at 00:00 on Sunday, September 1. Outflow is expected to be held at 6 kcfs for the month of September.


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: