Sean C. Morgan
For a young salmon or steelhead, going over a 450-foot dam can be a big problem.
Green Peter Dam may hold the solution for spring Chinook and winter steelhead trying to do that at Cougar and Detroit dams.
The U.S. Army Corps of Engineers has conducted experiments, most recently at the end of June, to find out just what juvenile fish may face sliding through a pipe down the face of a…