UNSPSC 31163401: Gabion

An iron net that is made for the net shape to fill in the stones. This product is widely used in various revetment works or watercourse works by filling the rocks.

UNSPSC 31163401 Gabion, a Commodity code, describes stone materials that state and local governments procure for erosion control, flood mitigation, retaining wall construction, and bridge scour countermeasures. Recent solicitations show cities, counties, and transit authorities buying rip rap (in sizes ranging from 5x9 inches to 24 inches and larger), riprap scour countermeasures, granite rubble stone, and related aggregate materials for stormwater management, creek stabilization, and infrastructure protection. The work spans civil construction, road maintenance, and water utility projects.

City and county public works departments dominate the issuing-body mix, with notable activity from the City of Wichita's Stormwater Division, City of Huntsville, Columbus Consolidated Government, DeKalb County, and Boulder County on bridge and erosion-control projects. State departments of transportation and county highway divisions also solicit under the code for surface treatments and aggregate materials. Geographic activity concentrates in Texas (Wichita, Huntsville, Dallas County, Denton County), Georgia (DeKalb County, Bryan County, Barrow County), Colorado (Boulder County), and Wisconsin (Dane County), with additional recent opportunities in Florida, Oregon, Mississippi, and Illinois. Representative recent opportunities include the City of Wichita's RFB #260112 for 1,560 tons of 18-inch flexible light stone rip rap, 1,900 tons of 24-inch heavy stone rip rap, and 500 tons of 5x9 rip rap for the Wichita-Valley Center Flood Control Project, with bids due July 10, 2026; Columbus Consolidated Government's RFB for an annual stone contract awarding to a Primary and Secondary Contractor selected from the two lowest responsive bidders, with bids due June 17, 2026; and Boulder County's bid for scour critical bridge repairs at Peaceful Valley and 84W bridges including approximately 1,100 cubic yards of riprap installation and removal, with bids due April 21, 2026 at $295,205 estimated combined project cost. Pre-qualification via independent lab testing of stone sources is common; many jurisdictions require documentation of compliance with Army Corps of Engineers or state DOT specifications and impose delivery penalties for late performance.