Partial Closure Construction - Twin Chimneys Landfill

Greenville County, South Carolina is soliciting proposals under RFP #27027 for partial closure construction of the Class 2 Unit 2 Landfill at the Twin Chimneys Landfill, with questions due October 30, 2026 at 5:00 p.m. and proposals due electronically November 16, 2026 at 3:00 p.m. The solicitation specifies no set-asides.

Scope covers a stormwater pond, subgrade preparation, structural fill of a perimeter berm, a stone access road, and erosion control measures including silt fence, erosion control blankets, seeding, and gabion baskets. The work involves approximately 301,000 cubic yards of excavation from a cleared borrow area within the Unit 2 Landfill footprint and approximately 120,000 cubic yards of structural fill. Contractors must furnish a South Carolina-licensed land surveyor for survey control and as-built verification, and engage a South Carolina-licensed firm for soil testing and compliance documentation. Pricing must use the County's proposal forms in Attachment C of the project manual, based on 30-day payment terms.

Substantial completion is required within 210 calendar days. The bid bond equals 5% of the bid price and may be submitted as an AIA bond form, through Surety2000, or as a certified check or money order payable to Greenville County. The successful bidder must furnish a performance and payment bond equal to the total bid price within 15 working days of award. Required insurance includes comprehensive general liability of $1,000,000 per occurrence and $2,000,000 aggregate, automobile liability of $1,000,000 per occurrence, and statutory workers' compensation. Greenville County must be named as an additional insured on all policies except workers' compensation and automobile liability. Contractors must comply with South Carolina Illegal Immigration Reform Act requirements, the Prison Rape Elimination Act, ADA standards, and asbestos management protocols.

Evaluation covers responsiveness to the RFP, experience and past performance on similar projects, project approach and schedule, pricing, equipment, and references, each weighted equally at 5 points (16.7% of total). Award is tentatively scheduled for November 30, 2026, with contract negotiations through December 18, 2026, and a Notice to Proceed issued December 18, 2026.