Dworshak Powerhouse Roof Replacement

The U.S. Army Corps of Engineers is seeking a qualified contractor to replace the roofing system on the Dworshak Powerhouse and ancillary structures in Ahsahka, Idaho. The work includes full removal of existing roofing, installation of a new multi‑layer waterproofing assembly, fall‑protection guardrails, fabricated metal stairs, and a new split‑heat‑pump HVAC unit for the elevator machine room. The contract will be awarded on a firm‑fixed‑price basis, requires extensive safety and quality‑control documentation, and mandates performance and payment bonds. The solicitation will be posted on SAM.gov in mid‑to‑late October 2026, with bids due roughly 30 days later and award anticipated in January 2027. A site visit will be offered about two weeks after posting; foreign nationals must obtain clearance in advance. • Scope: complete roof demolition to deck, install gypsum sheathing, vapor retarder, polyisocyanurate insulation, cover board, 90‑mil EPDM membrane, plus 2‑year installer warranty and 30‑year manufacturer warranty. • Additional work: FRP guardrails, metal stair fabrication, split‑heat‑pump HVAC replacement, safety & quality‑control plans, on‑site Safety Officer and Quality Control Manager. • Contract type: Invitation for Bid, firm‑fixed‑price, unrestricted competition (large and small businesses). • Bonds: 100 % performance and payment bonds required. • Mandatory on‑site personnel: Safety & Health Officer (5 yr experience, OSHA 30‑hr) and CQC System Manager (5 yr supervisory experience). • Estimated timeline: posting Oct 2026 → bid due ~Nov 2026 → award Jan 2027 → construction period to be defined. • Submission requirements: SAM registration, small‑business subcontracting plan (if large business), detailed safety, hazard, and quality plans, and compliance with EM 385‑1‑1.