Chester Dam Fish Ladder and Fish Passage Monitoring (ID, WY)

Recipient: The Henry's Fork Foundation, Inc. Project Area/Location: Snake River, Idaho and Wyoming Foundation Federal Funding: $29,000 Foundation Non-Federal Funding: $1,000 Matching Funds: $661,225
Total Funding: $691,225

The Henry’s Fork Foundation, Inc. will design and construct a 288-foot long fish ladder at the Chester Dam on the Henry’s Fork of the Snake River in Idaho. Chester Dam is a 13.5 foot high irrigation diversion dam that has completely blocked upstream fish passage for all species of the river’s native fish assemblage since 1938. This project will reconnect fish passage for the Henry’s Fork watershed below the dam with about 100 miles of rivers and streams above the dam that contain important spawning and rearing habitat for fishes, including Yellowstone cutthroat trout (YCT). Migratory YCT in the Henry’s Fork will be connected to resident YCT populations above the dam. Monitoring of fish use at the ladder and in the river will be conducted to assess the benefits of upstream fish passage. Project partners include the U.S. Fish and Wildlife Service, Caribou-Targhee National Forest, Bureau of Reclamation, Idaho Department of Fish and Game, Trout Unlimited, Greater Yellowstone Coalition, Fremont-Madison Irrigation District, and Fall River Rural Electric Cooperative.