Specifications include, but are not limited to: The improvement includes phased removal and replacement of existing plant electrical swithgear, construction of a floodwall and new electrical gear around existing Building No. 05, and construction of new Building No. 73. Major modifications around Building No. 05 include utility relocations, electrical transformer replacement and installation of a floodwall with vehicle access gates around the building. New Building No. 73 includes a new pre-engineered metal building to house plant electrical switchgear, natural gas-powered engine electrical generators and new parking lots. The project also includes HVAC, plumbing and electrical improvements, including all necessary materials, equipment, labor, miscellaneous associated work, and cleanup; all in accordance with the contract documents, including Plan File Nos. 602-001/116, located at the Wastewater Reclamation Facility, 3000 Vandalia Road, Des Moines, Iowa.