STP-0377(008) Seismic Retrofit, Haleakala Hwy, 3 Bridges, Maui

The Hawaii Department of Transportation is soliciting competitive bids for seismic retrofit of three bridges on Haleakala Highway (Route 377) in Maui under project STP-0377(008), with bids due October 15, 2026, at 2:00 p.m. HST. This is a federal-aid highway construction contract subject to Davis-Bacon prevailing wage, DBE compliance, and federal contract work hours and safety standards.

Bidders must hold a valid State of Hawaii General Engineering "A" license prior to contract award. The scope encompasses seismic retrofit of Waiale Gulch, Alae (Naalae Gulch), and Pulehu Gulch (Pohakuokala) Bridges, including debris removal from piers; carbon fiber wrapping of piers; removal and replacement of backfill behind abutments with Controlled Low Strength Material (CLSM) and structural tie-ins; replacement of creep blocks at bents; pier footing upgrades; pavement installation with pavement markers; scour countermeasures near Alae Bridge Pier 1; temporary erosion control measures; and traffic control. The project is authorized under U.S. Army Corps of Engineers Nationwide Permits 3 and general conditions, with compliance verified under Clean Water Act Section 404 and Section 401 water quality certification. Stormwater Pollution Prevention Plan (SWPPP) and Irrigation Water Pollution Prevention Plan (IWPPP) requirements apply throughout construction.

The estimated construction cost is between $10 million and $14 million, with a project duration from November 1, 2026, through October 31, 2028. Full roadway closures are authorized for up to 30 consecutive days per bridge, with extended work hours (6:00 p.m. to 7:00 a.m. weekdays and weekends) permitted under granted noise variance 26-NR-VN-06-DO, subject to equipment restrictions and residential notification requirements. No work is permitted during the seabird fledging season (September 15 to December 15). A virtual pre-bid conference is scheduled for September 22, 2026, at 10:30 a.m. HST; bidders must request the meeting invitation from Project Manager Jillian Chen at least two working days prior. RFI questions and substitution requests are due September 25, 2026, at 2:00 p.m. HST through HIePRO. Bid bonds and performance bonds are required. All bids must be submitted electronically through the Hawaii eProcurement System (HIePRO).