Concrete Improvements

The City of Northglenn is soliciting bids to replace concrete pavement on three lanes, install a modified curb‑and‑gutter system, and coordinate traffic control while complying with Colorado Department of Transportation (CDOT) concrete mix‑design standards. The work includes demolition of existing pavement, placement of a Class 6 aggregate base, concrete paving, installation of doweled expansion joints, and a special curb‑and‑gutter type with a 7‑inch face height. The contractor must submit a Traffic Control Plan, use approved delivery methods that avoid the Greenway Trails, and acknowledge receipt of the addenda. • Replace concrete pavement across three lanes with CDOT‑approved mix designs. • Install doweled expansion joints and a “Special” curb‑and‑gutter (Type 2) with a 7‑inch face height per CDOT standards. • Provide traffic‑control services to keep one lane open in each direction on Huron St and 112th Ave; submit plan for City approval. • Coordinate concrete delivery using alternate methods (pump trucks, conveyors, motorized buggies) because trucks cannot use Greenway Trails. • Incorporate the latest technical clarifications from Addendum 2 (June 3 2026) into cost estimates.