UNSPSC 11111901: River rock

Rock that has been smoothed by water and friction

UNSPSC 11111901 River rock is a Commodity code tracking the procurement of riprap, rip-rap stone, decomposed granite, and related aggregate materials for erosion control, drainage infrastructure, and flood mitigation. State and local governments solicit these materials across RFBs, RFQs, and ITBs to support stormwater management, bridge scour repairs, parking lot and roadway construction, and stream and creek stabilization work. Recent opportunities show cities, counties, and state departments procuring rip-rap in multiple sizes — from 5 × 9 stone through 18-inch and 24-inch heavy stone — for delivery to job sites or pickup at supplier locations, typically with delivery windows of 24 hours to 15 days and unit pricing on a per-ton or per-cubic-yard basis.

Issuing bodies span municipal public works and utilities departments, county transportation and public works agencies, state departments of transportation, and special districts such as parks and open space authorities. The City of Wichita, Boulder County Parks and Open Space, and San Bernardino County Department of Public Works have each issued recent procurements for riprap or related aggregate materials. Geographic spread includes Kansas, Texas, Colorado, Georgia, California, Wisconsin, Florida, Illinois, Oregon, and Mississippi, with the heaviest recent activity in Colorado (Boulder County, Santa Clara County), Texas (Wichita, Dallas County, Denton County, Huntsville), and the Southeast (Georgia, Florida). Representative recent opportunities include the City of Wichita RFB 260112 (posted June 26, 2026; due July 10, 2026) 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 5 × 9 stone for the Wichita-Valley Center Flood Control Project; Boulder County Bid 26-26 (posted February 7, 2026; due March 12, 2026) for the Baseline Road at Dry Creek Bridge Replacement encompassing culvert replacement, channel improvements, and rock wall work; and Columbus Consolidated Government RFB 26-0037 (posted May 14, 2026; due June 17, 2026) awarding to two lowest responsive bidders as Primary and Secondary Contractors for an estimated 200 tons monthly of rip-rap and fourteen stone classifications on a two-year contract with three optional renewal periods.