Description
The Navajo Division of Transportation is soliciting bids for a comprehensive roadway improvement project on the N8066 corridor (Road 1, 2 & 4) across Black Mesa, Arizona. The work includes extensive earthwork, subgrade stabilization, aggregate base and asphalt pavement placement, multiple concrete culverts, drainage structures, fencing, cattle‑guards, gates, signage, pavement markings, and required erosion‑control measures. The contract will be awarded on a fixed‑price basis, with a 6 % Navajo Nation sales tax applied to the total contract value. The project must adhere to Federal Provision‑2014 (FP‑14) specifications, Navajo Nation weight‑limit restrictions (76,800 lb), and Buy‑America requirements. The prime contractor must self‑perform at least 50 % of the work and provide a certified field‑testing laboratory on‑site.
• Approximately 7 miles of road (≈ 6.57 mi mainline + 0.35 mi extension + 0.12 mi access road) to be constructed, including grading, drainage, base and asphalt layers.
• Installation of multiple concrete culverts (24‑in to 84‑in), reinforced concrete box culverts, and associated wingwalls/heads.
• Comprehensive utility work (PVC waterlines, valves, encasement pipes), extensive fencing, cattle‑guards, gates, signage, and pavement‑marking systems.
• Mandatory 40‑hour work‑week, a field‑testing laboratory requirement, and a strict 76,800 lb truck weight limit enforced by Navajo Nation code.