NIGP 91187: Storm Drainage

NIGP 91187 Storm Drainage, an Item code, encompasses the construction, repair, rehabilitation, and maintenance of storm drain infrastructure serving municipalities, counties, and special districts. State and local governments procure under this code when they install new storm sewers and catch basins, replace aging pipe and structures, line existing corroded drainage systems, clean and inspect drainage assets, and perform emergency repairs to damaged storm infrastructure. Recent solicitations show active demand across drainage system replacement (reinforced concrete pipe, corrugated metal pipe, and HDPE materials ranging 8 to 48 inches in diameter), cured-in-place pipe (CIPP) lining and spray-in lining rehabilitation, catch basin cleaning and CCTV video inspection, erosion and sediment control, and stormwater outfall construction. Issuing bodies include county departments of engineering and public works, municipal public works departments, regional water authorities, and school districts. Greenville County South Carolina, Orange County and Collier County Florida, Chatham County Georgia, Pinellas County Florida, and the cities of Roseburg Oregon, Thomasville Georgia, Sandy Springs Georgia, Orlando Florida, and Fort Worth Texas have posted multiple solicitations in the past 60 days, indicating sustained procurement activity across the code.

Geographic concentration spans the Southeast (Florida, Georgia, South Carolina, and North Carolina) and the Pacific Northwest (Oregon and Washington), with secondary activity in Texas. Greenville County's Merrifield Park Drainage Improvement Project (IFB 27000, due July 24, 2026) calls for approximately 2,380 linear feet of 18- to 36-inch storm pipe, 24 catch basins, and restoration work under a 150-day completion window. Orange County Florida's Underdrain Installation & Repair (Y26-1003, due August 4, 2026, IFB) represents a five-year contract valued at $19.608 million across unit-price services including system installation and component replacement, with a Service Disabled Veteran Business preference of three to eight percent. Collier County's SCRWTP Lime Softening Improvements project (due July 1, 2026, estimated at $3.29 million) involves specialized chemical and water treatment facility drainage retrofits, reflecting the breadth of drainage work under the code—from roadside conveyance systems to complex utility and treatment facility infrastructure. The City of Fort Worth's Northside Drive project (due July 16, 2026) specifies 338 linear feet of 48-inch RCP replacement and downstream riprap erosion control, typifying ongoing demand for upsizing and stabilization work in mature urban drainage systems.