Scientific Investigations Report 2006-5019
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006-5019
The U.S. Geological Survey (USGS) developed a one-dimensional (1-D) hydraulic-flow model of the Kootenai River in Idaho to aid in evaluating hydraulic characteristics in the reach. The modeled reach extends from Leonia to Porthill, Idaho, a distance of 105.6 kilometers. Concerned with enhancing spawning conditions of the white sturgeon in the Kootenai River, biologists need the ability to evaluate hydraulic effects of changes in river discharge and water-surface elevations in Kootenay Lake especially in the braided and canyon reaches. The extension of the white sturgeon spawning habitat reach into the upstream braided and (or) canyon reaches is under consideration because streambed material (gravels and cobbles) of the braided and canyon reaches are suitable for white sturgeon spawning. Whereas, streambed materials (medium to fine sand) of the meander reach are unsuitable for spawning.
A previous developed model of the study area was used to simulate steady conditions associated with various river discharges and water-surface elevations in Kootenay Lake. Modeled river discharges ranged from 6,000 to 75,000 cubic feet per second, and modeled water-surface elevations in Kootenay Lake ranged from 531.32 to 537.09 meters.
For more information about USGS activities in Idaho, visit the USGS Idaho Water Science Center home page .
U.S. Department of the Interior |
U.S. Geological Survey
Persistent URL: https://pubs.water.usgs.gov/sir20065019
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