Charleston Civicplus #903

Dupont-Wappoo Watershed Stormwater, Utility, Sidewalk, and Roadway Improvements

The City of Charleston is seeking a civil construction contractor for stormwater, roadway, utility, and pedestrian improvements in the Dupont-Wappoo Watershed. - Government buyer: City of Charleston Department of Stormwater Management; the bid documents identify Director Matthew Fountain, P.E. & P.G. The project is in Charleston County, South Carolina. - Scope: Improve drainage ditches and stormwater conveyance, install new storm drains and inlets, adjust or relocate water and sewer utilities, build ADA-compliant sidewalks and curb ramps, and restore and resurface roadways along Orleans Road. - Key quantities: Install 820 units of 18-inch RCP, 435 units of 24-inch RCP, 52 units of 30-inch RCP, and 36 units of 48-inch RCP; install 745 units of concrete sidewalk and mill/resurface 905 units of pavement. The bid schedule also includes removals, inlets, erosion controls, utility adjustments, driveways, and restoration. Units are not stated in the supplied summaries. - Named companies and organizations: AECOM Technical Services, Inc. contracted Soil Consultants, Inc. for the geotechnical investigation. The South Carolina Department of Transportation (SCDOT) and Charleston Water System are referenced in connection with permits and applicable standards. No construction OEM or named construction bidder is specified. - Notable requirements: Target 20% Small Business Enterprise participation; use ADA-compliant sidewalk improvements and comply with City stormwater and Charleston Water System standards. The contract requires at least 5% bid security and 100% performance and payment bonds. Liquidated damages are $500 per day for late completion. - Geotechnical findings: Investigation work included muck probing at 11 locations and two hand-auger borings. Recommendations include 2:1 channel-bank slopes and clayey-sand fill with vegetation for stabilization. - Other project conditions: Includes traffic control, erosion and sediment controls, tree and site restoration, and survey/as-built drawings. SCDOT permit requirements include construction coordination, traffic control, and inspections.

Description

The City of Charleston is soliciting bids for construction services for the Infrastructure Improvements in the Dupont-Wappoo Watershed Project, located along the eastern side of Orleans Road between Hazelwood Drive and Florence Lane. Work includes demolition and installation of storm drainage infrastructure, excavation and grading of an existing drainage channel, water and sanitary sewer service adjustments, and installation or replacement of curbs, sidewalks, driveways, pavement, fences, and erosion-control measures. The scope also includes clearing and grubbing, restoration, traffic control, and as-built record drawings. The addendum revises the bid submission deadline to October 23, 2026, at 2:00 p.m.; the source listing separately gives October 16, 2026, as the response deadline.

View original listing