SEATTLE DISTRICT

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.

Sept. 29, 2016

Current Koocanusa Reservoir elevation:  2,445.1 feet
Current Koocanusa Reservoir inflow: ~5,000 cubic feet per second
Current Libby Dam outflow: 6,000 cfs
Current Kootenai River elevation at Bonners Ferry: 1,746.1 feet

Outflow from Libby Dam will remain at 6,000 cfs through Sept. 30. On Oct. 1, outflow will decrease over two hours to 5,000 cfs starting at 1 a.m. MST. On Oct. 2, the outflow will decrease further to 4,000 cfs starting at 1 a.m. MST.

The Northwest River Forecast Center creates daily forecasts for short term projections throughout the Kootenai and Columbia River Basins.  These forecasts may be updated multiple times in a day and as conditions change.  Links to those forecasts can be found below.

Short term forecasts for Libby Dam elevations and inflows:
http://www.nwrfc.noaa.gov/river/station/flowplot/flowplot.cgi?lid=LYDM8

Short term forecasts for Libby Dam outflow:
http://www.nwrfc.noaa.gov/river/station/flowplot/flowplot.cgi?lid=KBDM8

Additionally, projected inflows and reservoir operations at Libby Dam through next summer can be found here: http://www.nws.usace.army.mil/About/Offices/Engineering/HydraulicsandHydrology/OperationalProjections.aspx

These modeling results are updated at least monthly and include information on elevations, inflow, and outflow:

Page 1 shows Lake Koocanusa elevation probabilities through the summer
Page 2 shows Libby Dam outflow probabilities through the summer
Page 3 shows Lake Koocanusa elevation probabilities for a given date
Page 4 shows Bonners Ferry stage probabilities through the summer
Page 5 shows Bonners Ferry maximum stage probabilities for the year

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