The project will provide start-up funds to replace the metal culvert on the Blackfoot River Road at Mill Creek in the Blackfoot Narrows. The current culvert is a barrier to migrating Yellowstone cutthroat that use this small stream for spawning and rearing. The project will replace the culvert with a larger concrete box bridge with a natural bed that will improve fish passage. A resting pool or weir will be designed at the downstream end of the box bridge. The project is a cooperative effort of the U.S. Forest Service and Caribou County.