Charleston Civicplus #bidID=885

Charleston Central Park Drainage Improvements: Stormwater Construction and Golden Harvest Tide Gates

The City of Charleston's Department of Stormwater Management is seeking construction services for the Central Park Drainage Improvements Project on James Island, focusing on flood and tidal resiliency upgrades. - Government Buyer: - City of Charleston, Department of Stormwater Management (Engineering Division) - OEMs and Vendors: - Golden Harvest, Inc. (specified for tide and flap gates) - Products/Services Requested: - Major stormwater infrastructure: installation of precast concrete box culverts (108x48), reinforced concrete pipes (RCP) in various sizes, headwalls, junction boxes, catch basins, and drainage piping (30-inch, 48-inch, and 54-inch box culverts) - Golden Harvest Model GH-35 Self-Regulating Tide Gates (GH-35) and Model GH-39SS Stainless Steel Flap Gates (GH-39SS) - Erosion control: rip-rap, geotextile, vegetated concrete block mats, silt fence, sediment tubes, turbidity curtain, and hydroseeding - Utility relocations: water and sanitary sewer lines, gas lines, and communication lines - Roadway and site restoration: asphalt paving, sidewalks, curbs, gutters, fencing, signage, and landscaping - Demolition and removal of existing infrastructure (pipes, culverts, trees, roadways, sidewalks) - Grading, unsuitable material removal, and import of engineered fill/topsoil - Survey and as-built record drawings - Unique/Notable Requirements: - Golden Harvest tide and flap gates are specifically named as required OEM products - Mandatory South Carolina Marine Contractor's License due to tidal water work - 20% Small Business Enterprise (SBE) participation goal - Continuous traffic access on Riley Road must be maintained - Coordination with the Holiday Festival of Lights at James Island County Park - Participation in a public information meeting post-award - Liquidated damages of $500/day for late completion - Significant geotechnical and easement considerations, including muck depth investigations and foundation recommendations

Description

The City of Charleston is soliciting bid proposals for construction services to improve drainage and tidal and flood resiliency in the Central Park Road basin on James Island. The project involves installing improvements along approximately 4,250 linear feet of open channel, including demolition and removal of existing infrastructure, installation of new storm drain pipes, culverts, valves, and structures, grading, utility relocations, paving, erosion control, traffic control, and as-built drawings. This project is part of a larger multi-agency effort and is partially funded by the South Carolina Rural Infrastructure Authority.

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