Description
The Navajo Nation Division of Transportation is seeking a qualified contractor to replace the existing single‑lane steel bridge (Bridge N651) at Tohatchi, NM, and complete the associated roadway improvements. The work includes full bridge reconstruction, earthwork, drainage structures, pavement (base course and asphalt), metal guardrail installation, erosion‑control measures, traffic‑control devices, permanent signing and striping, fencing, and related miscellaneous construction. The contract will be awarded on a competitive sealed‑proposal basis and will be funded through the Federal Highway Administration Tribal Transportation Program.
• Bridge replacement: design‑build of a two‑lane prestressed‑concrete beam bridge (~28.9 m long).
• Earthwork & pavement: excavation, back‑fill, aggregate base course, and asphalt concrete paving for a 0.249 km corridor.
• Ancillary works: guardrail systems, drainage (rip‑rap, culverts), erosion control, traffic‑control plans, signage, and site restoration.
• Mandatory compliance: Navajo Business Opportunity Act, Navajo Preference Act, 6 % Navajo sales tax, Buy‑America, Davis‑Bacon wage determinations, and environmental mitigation (asbestos/LBP).