NIGP 21031: Drains, Parts and Accessories

NIGP 21031 Drains, Parts And Accessories, an Item code, encompasses reinforced concrete pipe headwalls, storm drainage system components (inlets, arch pipe, manholes, end treatments), and associated drainage infrastructure parts procured by state and local water, sanitation, and public works departments. State and local governments use this code to source manufactured drainage components and accessories for capital projects involving stormwater and sanitary sewer system installation, rehabilitation, and expansion. Issuing bodies include county water and sanitation districts, city public works and purchasing departments, and county departments of financial services coordinating procurement for water resources. The work solicited spans spot purchases of standardized components (inlets, reinforced concrete arch pipe, wyes, and end treatments) through to large infrastructure rehabilitation contracts incorporating pipe bursting, service connection replacement, and mainline extensions with multiple diameter and material specifications (PVC SDR26, HDPE, cast iron, vitrified clay pipe).

Recent activity concentrates in California, Georgia, and the broader Southeast, with representative opportunities including Gwinnett County Department of Water Resources (Georgia) soliciting quotations for 18-inch and 48-inch reinforced concrete pipe headwalls (RFQ IWQ 136094, due October 2, 2026); Santa Clara County Sanitation District No. 2-3 (California) requesting bids for structural defect repair including 326 linear feet of 6-inch PVC SDR26, 1,080 linear feet of 6-inch HDPE pipe bursting, and service connection wyes (ITB ITBRDAFY270088, due September 17, 2026); City of Austin, Texas Purchasing Office issuing an IFQ for spot purchase of storm drainage system components including inlets, reinforced concrete arch pipe, and manholes (IFQ 6300 CAA1003, due June 1, 2026); and Clay County (Florida) soliciting bids for Carl Pugh Park drainage improvements with 1,095 linear feet of 8-inch ADS single wall pipe and site grading (IFB 2526041, due April 27, 2026). Most solicitations require bidders to meet minimum qualifications including business licensing, relevant project experience with three verifiable references, and comprehensive insurance coverage with commercial general liability and workers' compensation.