UNSPSC 70171800: Drainage services

UNSPSC 70171800 Drainage services is a Class code that encompasses the design, engineering, construction, and maintenance of stormwater conveyance, detention, and treatment systems serving municipalities, counties, water districts, and transportation authorities. State and local governments solicit under this code for storm sewer installation and replacement, drainage infrastructure rehabilitation, stormwater best management practices (BMP) design, and drainage system cleaning and maintenance. Recent activity spans RFPs for professional engineering services, ITBs for construction delivery, and on-call service contracts covering both design-phase and post-construction work. West Basin Municipal Water District (California) is pursuing on-call engineering services estimated at $3,000,000 over three years for hydraulic modeling, engineering evaluations, and planning of water and recycled water facility improvements with drainage components; Greenville County, South Carolina posted an IFB for storm drainage system upgrades in Merrifield Park involving 2,380 linear feet of pipe installation at an estimated $150-per-day liquidated damage rate; Orange County, Florida solicited sealed bids for underdrain installation and repair with a five-year contract value estimated at $19.6 million; and Flagler County, Florida requested bids for First Avenue Drainage Improvements including conveyance swales and storm sewer pipe ranging from 14 to 36 inches in diameter.

Issuing bodies are primarily counties (Orange, Flagler, Greenville, Harris, Pasco, Collier in Florida; Galveston and Cameron in Texas; Berrien, Coffee, and Madison in Georgia), water districts and municipal utilities (West Basin in California), and cities (Orlando, Alpharetta, Dalton, Union City, Valdosta in Georgia; Brownsville and San Marcos in Texas; Cincinnati and Meriden in Connecticut). Recent activity clusters heavily in Florida (Orange, Flagler, Broward, Sarasota, Escambia counties and cities of Orlando and Dania Beach) and Texas (Harris, Galveston, Cameron, Pasco counties; cities of Brownsville, San Marcos, Richardson), with secondary concentration in Georgia (multiple county and city RFPs) and scattered opportunities across Massachusetts, Connecticut, Utah, and other states. Representative recent opportunities include Orange County's Y26-1003 underdrain installation and repair IFB due August 4, 2026, with $19.6 million five-year value and unit-price bidding; Greenville County's IFB 27000 Merrifield Park Drainage Improvement due July 24, 2026 with 150-day completion deadline; Harris County Flood Control District's RFSQ for South Mayde Creek Bypass Channel design due June 15, 2026 covering hydrologic analysis, permitting, and construction-phase services; and the City of Alpharetta's RFP 26-118 stormwater BMP design due June 25, 2026 for detention pond and dry extended detention facility conversion. SBE, MBE, WBE, DBE, and HUB preferences appear frequently; several opportunities carry prevailing wage and Davis-Bacon compliance mandates. Competitive intensity is high across construction IFBs and moderate to high for engineering and design RFPs, with response deadlines typically clustering in July through August 2026.