Description
The Navajo Nation Division of Transportation is soliciting competitive sealed proposals to reconstruct an 8.635 km (5.36 mi) roadway corridor known as the Blue Canyon Road Project. Work includes full‑depth earthwork, sub‑grade stabilization, aggregate base placement, hot‑mix asphalt paving, bridge/culvert removal and new reinforced‑concrete box‑culvert construction, extensive drainage and water‑line installation, gabion‑wall and rip‑rap erosion control, rock‑fall protection fencing, and a suite of safety and traffic‑control elements (guardrails, fencing, cattle‑guards, signage, and pavement markings). The contract is funded through the Federal Highway Administration’s Tribal Transportation Program and must comply with Navajo Nation procurement statutes and FHWA specifications.
• 160,000 m³ of roadway excavation and 47,000 m³ of subgrade stabilization.
• 9,335 m³ of galvanized/aluminized gabion wall, 200 t of wire‑enclosed rip‑rap, and a 65 m rock‑fall fence.
• Installation of water‑lines (50 mm‑250 mm PVC/HDPE) totaling ~800 m, plus associated valves, fittings, and utility‑relocation compensation.
• Full pavement package: 29,470 t of untreated aggregate base, 16,560 t of Type‑1 asphalt concrete, prime‑coat and tack‑coat applications.
• Additional items: guardrail (SGR20B), concrete barriers, 5‑strand barbed‑wire fencing (≈ 17 km), cattle‑guards, signage, pavement markings, temporary erosion control, straw mulching (12 ha), and seeding (12 ha).
The contractor must self‑perform at least 40 % of the contract value, furnish performance and payment bonds, and apply a 6 % Navajo sales tax on the contract amount.