USACE Walla Walla District plans to issue a single-phase solicitation on or about 30 November 2026 for a construction IDIQ MATOC focused on life-safety renovation and upgrade projects at large, remote hydroelectric powerhouses. Primary performance is anticipated at McNary, Ice Harbor, Lower Monumental, Little Goose, Lower Granite, and Dworshak, with possible work in the Seattle and Portland Districts across Washington, Oregon, Idaho, and Montana. Up to four MATOCs may be awarded, with at least one and up to two reserved for qualified small businesses, and task orders will be firm-fixed-price. The aggregate shared contract capacity is anticipated to be $99 million, individual task orders may be valued up to $25 million, and contracts are expected to include a 36-month base period plus two 24-month options. Work includes fire detection and suppression, smoke control, HVAC controls and equipment, fire barriers and doors, emergency lighting, electrical distribution, precast concrete, roofing, and related industrial construction in operating high-voltage powerhouse environments.