Perley Brook is a tributary of the Fish River and is located in Fort Kent, about fifty miles northwest of Presque Isle. Continuing erosion caused by high spring stream flows had threatened the Route 161 highway embankment. The erosion was occurring in a 100-foot-long area adjacent to two culverts that carry Perley Brook under the roadway.

To stem the problem, the Corps constructed a streambank stabilization project which includes 100 linear feet of stone slope protection along Perley Brook, gabion slope protection at the culvert entrance on the roadway embankment and removal of an approximately 1,500 square foot shoal area to improve channel alignment.

The project was completed in 1989 at a cost of $55,000.