SD8539 Manse Street Channel Rehabilitation Project

The City of Columbia, South Carolina, is soliciting bids for the SD8539 Manse Street Channel Rehabilitation Project under solicitation number BID034-25-26-JAH Addendum 4, with a response deadline of May 26, 2026. The project involves comprehensive site preparation, excavation, grading, drainage installation, stormwater management systems including pipes, manholes, and detention structures, concrete sidewalk construction compliant with ADA standards, erosion control measures, and paving work, all executed in accordance with SCDOT and ASTM specifications. The contract follows a Firm-Fixed-Price model and is awarded on a Lowest Price Technically Acceptable basis, with no trade-off analysis between cost and technical merit. Bidders must demonstrate responsibility through financial stability, valid UEI and CAGE codes, compliance with DBE participation goals including a 15% citywide target, and adherence to all certification requirements including non-collusion and organizational conflict of interest disclosures. All proposals must be submitted electronically through the IONWAVE portal, with no hard copies accepted, and must include supporting documents such as financial statements, CDBE affidavits, subconsultant records, and technical appendices. Pricing is not pre-filled, and the total contract value remains unspecified. Performance is expected at the Manse Street project site in Columbia, SC, with inspection and acceptance occurring at the delivery destination. The contractor is responsible for compliance with stringent standards including ASTM and AASHTO for materials and testing, UL labeling for manufactured products, and proper handling and storage of plant materials and geosynthetics under ASTM D4873. Key contractual provisions include mandatory insurance coverage—$1M general liability, $500K auto liability, $2M excess, and flood insurance if applicable—along with a 2% non-resident withholding on payments exceeding $10,000 unless tax compliance is proven. The contractor must submit detailed record drawings of storm sewer systems prior to final payment and provide 48-hour notice for all inspections. Work must conform to OSHA safety standards, and any non-conforming materials or installations must be removed at the contractor’s expense. Contract administration lacks formal COR/COTR or PCO designations, and payment details such as remittance addresses and invoicing systems like WAWF are unspecified, though invoices must itemize payments to vendors and align with project tasks. The contract includes local articles covering inspection, price adjustments, termination, laws and regulations