This solicitation covers the design‑build construction of a major highway improvement corridor in Jefferson County, Alabama, including a new 130‑ft bridge, extensive earthwork, drainage, roadway paving, retaining walls, guardrails, impact attenuators, traffic‑signal installation, and full traffic‑control and erosion‑control plans. The work must be completed within 300 working days and complies with ALDOT 2026 specifications, MUTCD standards, and CSX railroad coordination requirements. The contract value is estimated between $6 M and $7 M with a mandatory 10 % contingency and required performance bonds.
• Bridge replacement and substructure/superstructure concrete work (≈ 1 000 cu yd concrete).
• Roadway reconstruction, Superpave concrete layers, and associated drainage (storm‑sewer pipe, inlets, ditches).
• Retaining walls, guardrails, impact attenuators, and full traffic‑control device installation per detailed phased plan.
• Coordination with CSX railroad, Birmingham Water Works, and utility locate requirements; extensive environmental and safety compliance (NPDES permit, wildlife protection, holiday work windows).