Hydro Plant Trash Rake Replacement

Mesa provided engineering design services and detailed specifications for the replacement of an existing 2 ton, pneumatic hoist that presented the station with safety, reliability, and environmental concerns. A new electrically powered 2 ton monorail hoist, motorized trolley, trash raking basket, and floating skip pan were provided to remove the built up trash on the trash racks. This allows plant personnel to remove trash that is blocking flow across the trash rack eliminating the risk of a collapsed rack or excessive loss of generation.


Construction engineering field services including planning and scheduling were performed as the owner’s engineer. As-constructed documentation was updated including structural calculations for the monorail bean design. Mesa also provided startup, testing, and commissioning support for the new hoist and collector rail that were installed by the crane vendor.