Annual Contract for Polypropylene Culverts

Kaufman County, Texas is requesting sealed bids for an annual contract to supply polypropylene culverts in nine diameter sizes (12 inches to 60 inches), all 20-foot lengths, with bids due October 20, 2026 at 2:00 p.m. at the Kaufman County Purchasing Department. Questions are due October 15, 2026 at 2:00 p.m.

All culvert pipes must meet ASTM F2881 and AASHTO M330 specifications for polypropylene material with smooth interiors and annular corrugated exteriors, suitable for stormwater drainage applications. Pricing must be quoted FOB Destination to Kemp, Texas and remain firm for six months from contract commencement; price increases may be considered thereafter based on the April 2027 Consumer Price Index. Vendors must submit one original hard copy, three additional hard copies, and one digital copy of the complete bid response, including proof of insurance, three professional references, conflict of interest questionnaire, all required signature forms, and cost proposal sheets.

The contract is effective October 27, 2026 for a twelve-month initial term, with Kaufman County reserving the right to renew for two additional twelve-month periods if both parties agree. If the contract value exceeds $100,000, performance bonds and bid bonds may be required; if it exceeds $25,000, a payment bond is mandatory. The successful vendor must provide a Certificate of Interested Parties Form 1295, Kaufman County vendor registration information, and updated certificates of insurance within ten days of award notification.

No pre-proposal conference was held. No incumbent is identified, and no specific contract value is stated in the solicitation.