Gavins Point Dam Powerhouse Drain Rehabilitation

This solicitation is for the rehabilitation of drain lines within the powerhouse at Gavins Point Dam, located near Yankton, South Dakota. The project involves cleaning and Cured-In-Place Pipe (CIPP) lining of 3-inch, 4-inch, and 6-inch diameter drain lines on the B-Floor (EL. 1161.0). The scope of work includes removing a lodged pipe snake cutter head, performing mechanical cleaning, CCTV inspections, and the CIPP lining process. The period of performance is 120 calendar days from the issuance of the Notice to Proceed. Key activities include site setup, preparatory inspections, cleaning and debris removal, CIPP liner preparation and installation, curing, reinstatement of openings, and final quality control checks. The solicitation also details requirements for submittals, materials, safety, environmental conditions, and project closeout, including as-built documentation and a one-year warranty on the CIPP installation.