700202 - Orchard Diversion Improvement Project

The State of Montana Natural Resource Damage Program (NRDP) is seeking a qualified construction contractor to replace the existing Orchard Diversion structure on the Clarks Fork Yellowstone River near Bridger, MT, and to install fish‑passage and irrigation infrastructure. The work includes temporary water control (coffer dam, de‑watering), demolition of existing structures, extensive earthwork, construction of a rock‑ramp diversion, riprap, concrete sluiceway, large‑diameter corrugated plastic pipe, a Waterman sluice gate, debris boom, roadway reclamation, and site restoration. The contractor must attend a mandatory pre‑bid conference, provide a 10 % bid bond, and comply with Montana prevailing‑wage and tax‑withholding requirements. • Scope covers civil, structural, hydraulic, and environmental construction (≈ 1,720 CY earthwork, 1,050 CY rock ramp, 90 CY concrete, 240 LF of 48″ pipe, 21,780 SF site restoration). • Mandatory pre‑bid site walk‑through on May 5, 2026; questions due May 8, 2026; bid deadline May 28, 2026 (sealed). • Contract period 191 calendar days after notice to proceed, with earliest work inside the river channel Oct 5, 2026 and final completion by Mar 31, 2027.