Overlay and Chip Seal Hwy 312 Billings Area

The Montana Department of Transportation is soliciting sealed bids to perform an overlay and chip‑seal rehabilitation of approximately 4.03 mi (MP 2.52 – 6.55) of Highway 312 in the Billings area. The work includes supplying and placing a ¾‑in. commercial plant mix (Grade S PG 58H‑34), cold‑milling existing pavement, applying a chip‑seal surface (type 1 chips and CRS‑2P emulsified asphalt), providing traffic‑control services, and complying with extensive environmental and permitting requirements. • Quantity of plant mix: 7,948 tons; 148 tons of CRS‑2P emulsion; 83,208 sq yd of Type 1 chips; 2,000 sq yd of cold‑milling. • Must obtain MPDES storm‑water permit and submit an Aquatic Resources Protection Plan before ground disturbance. • Contractor responsible for traffic‑control (pilot‑car, flaggers), water/dust control, reflective tabs, and temporary pavement markings. • Work may not start before July 1 2026 and must be completed no later than June 18 2027. • Bid security of 10 % required for total bids ≥ $150,000; contractor registration with the MT Dept. of Labor & Industry is mandatory. • All bids must be entered via the eMACS system; paper bids are not accepted.