Description
The Delaware Department of Transportation is seeking a design‑build contractor to construct a double‑bridge roadway segment extending from Muddy Neck Road to Neptune Drive in Sussex County. The scope includes bridge replacement, helical‑pile foundations, roadway paving, temporary timber mats for wetland access, sanitary‑manhole repairs, construction‑engineering services, electronic ticketing system integration, traffic‑control staffing, and extensive wetland‑mitigation seeding. The project is funded under the CMAQ‑2020 (Congestion Mitigation and Air Quality) program and must comply with prevailing‑wage, Buy‑America, and numerous environmental permits.
• Design‑build of two new prefabricated steel‑truss bridges with helical‑pile foundations (24 piles) and elastomeric bearing pads.
• Roadway milling, overlay, and new PCC curb‑and‑gutter installation over approximately one mile of alignment.
• Installation of temporary timber mats, sanitary‑manhole repair, and comprehensive utility coordination with five local utilities.
• Provision of construction‑engineering, GPS/machine‑control grading, traffic‑officer staffing (180 $/hr), and electronic ticketing API integration.
• Wetland mitigation via grass‑seed seeding (≈ 350 SY) and compliance with USACE NP‑23, DNREC, and USCG permits.