Interrogation Site Metadata

This array is located in the ladder of the Crooked River Satellite Facility. The Crooked River is a tributary to the South Fork Clearwater River. The array consists of two overflow antennas. The openings for the antennas are 30x48 and each antenna has a baffle to replicate the existing dam board baffle. All fish migrating up the Crooked River that try to migrate upstream of the satellite facility are forced into the ladder via a removable weir. Fish have the freedom to move into and out of the ladder at will and are not trapped until they jump a finger weir that is above all array antennas. Adult Chinook salmon that swim past the array and enter the ladder are sorted by origin. Natural origin fish are returned to the Crooked River above the weir while hatchery origin fish are typically ponded and latter spawned, recycled through the fishery, or released elsewhere in the basin.