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Columbia/Snake Tributary Habitat Program - (Idaho)
Lower Iron Creek Culvert Replacement

The Upper Salmon River subbasin (HUC 17060201) extends from its headwaters in the Sawtooth Mountains to its confluence with the Middle Fork Salmon River, excluding the Lemhi and Pahsimeroi River subbasins. The subbasin has a drainage area of approximately 2,425 square miles. The Upper Salmon River subbasin includes the East Fork and Yankee Fork drainages, the latter of which is being studied for future projects. In 2010, one project was completed in the subbasin that removed a fish migration barrier.

ESA-listed fish species present in the river include Snake River (SR) spring/summer Chinook salmon (threatened) SR steelhead trout (threatened), SR sockeye salmon (endangered), and Columbia River bull trout (threatened).

Iron Creek is a tributary to the Salmon River. The confluence is approximately 15 miles upstream of the town of Salmon. Iron Creek provides habitat for migrating salmon, steelhead, and bull trout. Located within the lower reach of Iron Creek, a culvert that conveyed the creek under a county road was identified as a potential fish migration barrier. The culvert was removed and replaced with a prefabricated steel bridge to provide improved fish passage.

Lower Iron Creek Culvert Replacement Project - Before

Lower Iron Creek Culvert Replacement Project: The culvert outlet before project.

Trinity River - After

Lower Iron Creek Culvert Replacement Project: The prefabricated steel bridge after project completion.

 

Last updated: 11/9/11