Description
DelDOT is seeking qualified contractors to replace Bridge 1‑084 on N‑234 Twaddell Mill Road (New Castle County, DE). The project involves demolition of an existing stone‑concrete culvert, installation of a new 5‑ft diameter reinforced‑concrete pipe, construction of modular‑block retaining walls, rip‑rap placement, roadway reconstruction, utility coordination, extensive erosion‑and‑sediment control, and full traffic‑detour management. The work must comply with Delaware Standard Specifications, prevailing‑wage rules, craft‑training requirements, and multiple environmental permits (USACE, DNREC, flood‑plain). The contract is a competitive bid with a 30‑June 2026 deadline and a 60‑day construction window after notice to proceed.
• Scope: bridge sub‑structure (pipe, backfill, concrete header), retaining wall, rip‑rap, pavement, utility protection, and E&S measures.
• Key compliance: prevailing‑wage, craft‑training, drug‑testing, environmental permits, and performance‑rating requirements.
• Timeline: bids due 30 June 2026; anticipated NTP early September 2026; 60‑day construction period with early‑completion incentives and late‑completion penalties.