While conducting the annual maintenance bulkhead exercise, access across Sutton Dam to the Jerimiah Carpenter hiking trail was closed. This important exercise enables staff the opportunity to maintain a state of readiness and to test the various pieces of equipment and steps required to complete the process. After placing the bulkhead over the upstream entrance of the water intake, crews can then enter the tunnels that carry water thru the dam and make inspections to equipment that is normally inaccessible due to water flowing thru the dam. The bulkhead weighs 32,000 lbs and is set into place with a crane designed specifically for operating on the narrow bridge that spans the spillway of the dam.