NIGP 21028: Culverts, Concrete

NIGP 21028 Culverts, Concrete is an Item code under which state and local governments procure precast and cast-in-place concrete culvert sections—including reinforced concrete box culverts, pipe culverts, and associated wingwalls, headwalls, and end structures—for drainage infrastructure, bridge replacements, and stream crossing improvements. Recent solicitations reflect substantial activity in both precast fabrication and delivery and cast-in-place installation work, with the Kentucky Transportation Cabinet, county boards of supervisors across Mississippi and Georgia, municipal public works departments, and regional water authorities as primary buyers. The work spans culvert replacement on rural roads, stormwater system upgrades in growing suburban corridors, fish passage improvements on state routes, and complex multi-structure projects involving utility coordination and environmental compliance. Concrete specifications consistently require minimum 4,000 PSI compressive strength, AASHTO or state DOT standards compliance, and shop drawings approval prior to fabrication; delivery terms typically mandate F.O.B. destination with freight prepaid and penalty provisions for late delivery (commonly $200–$600 per day). Bidders encounter variable prequalification gates—some jurisdictions (Georgia counties, Kentucky) restrict bidding to DOT-prequalified contractors in specific work classes, while others (Wisconsin, Arizona municipalities) accept any certified manufacturer or distributor. Master service agreements and indefinite-quantity term contracts appear frequently, particularly for small utilities and emergency pump station work, with pricing structured on hourly labor rates, unit costs, and material markups capped at 20 percent.

Recent solicitations concentrate in the Southeast (Georgia, Mississippi, Florida, Tennessee, Kentucky) and Pacific Northwest (Oregon, Washington), with secondary activity in Colorado, Arizona, Wisconsin, Illinois, and Texas. The Kentucky Transportation Cabinet's July 2026 ITB for precast reinforced concrete box culvert sections across Harlan and Bell counties (bids due July 29, 2026) exemplifies the core procurement: 216 linear feet across five locations, HL-93 loading, 45-day delivery window, best-value evaluation favoring price (95 points) and delivery speed (5 points). Clackamas County, Oregon's April 2026 ITB for Bear Creek Culvert fabrication and delivery required Pacific Northwest Precast Concrete Association membership and three prior similar projects, with August 2026 delivery to meet seasonal in-water work windows. City of Austin's May 2026 IFQ for storm drainage components (inlets, arch pipe, manholes, reinforced concrete pipe wyes) sought quotations within five business days of order, highlighting the spot-purchase and materials-supply tier of the code. Seminole County, Florida's June 2026 master services agreement for wastewater pump station repair and refurbishment—with eighteen service categories, 51 percent self-performance requirement, 24-hour emergency response mandate, and $1 million estimated value—illustrates the broadest scope of work under this code. The source supports no current activity under the code; all representative opportunities are dated February 2026 or later, with response dates ranging through July 2026.