US Army Corps of Engineers
Seattle District Website


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

October 05, 2020

Current Koocanusa Reservoir elevation: 2446.15 feet
Current Koocanusa Reservoir inflow: ~4 kcfs
Current Libby Dam outflow: 6 kcfs
Current Kootenai River elevation at Bonners Ferry: 1745.93 feet

Current Changes and Highlights:
- Libby Dam outflows will decrease from 6 kcfs to 5 kcfs on Tuesday, October 6th over two hours beginning at 00:00 MDT.
- Libby Dam outflows will decrease from 5 kcfs to 4 kcfs on Wednesday, October 2nd over two hours beginning at 00:00 MDT

Libby Dam outflows will decrease to 4 kcfs minimum release this week. Outflows are then expected to remain at 4 kcfs through 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: