UNSPSC 20101800: Mechanized ground support systems

UNSPSC 20101800 Mechanized ground support systems (Class) encompasses the construction and rehabilitation of roadways, bridges, and related transportation infrastructure that state and local governments solicit through competitive sealed-bid processes. Recent opportunities show counties and cities procuring comprehensive pavement rehabilitation, roadway reconstruction including roundabouts, bridge replacement, guardrail and safety barrier improvements, and associated utility relocation work — all executed by general contractors supplying labor, materials, equipment, and mobilization. The issuing bodies are primarily county transportation and public works departments and city purchasing divisions, with Santa Clara County, California and Barrow County, Georgia appearing multiple times across recent solicitations.

Activity is concentrated in California and Georgia. Santa Clara County has solicited at least three pavement and safety infrastructure projects since February 2026, including the Red Fox Creek Bridge #37C0172 Replacement Project (IFB ITBRDAFY260559, sealed bids due March 5, 2026 at 2:00 p.m., mandatory pre-bid February 25, 2026), the Expressway Guardrail Replacement and Safety Barrier Improvements project (IFB ITBRDAFY260652, bids due April 23, 2026 at 2:00 p.m., pre-bid April 14, 2026), and the Central Expressway Pavement Rehabilitation Project (IFB ITBRDAFY260694, bids due May 21, 2026 at 2:00 p.m.). In Georgia, the City of Marietta issued RFB 26-53444 for roundabout construction at New Hope Road and Wylie Road (bids due June 26, 2026, mandatory pre-bid June 10, 2026) with a restrictive eligibility gate requiring Georgia Department of Transportation certification and in-state presence, and Barrow County solicited Wynn Lake Road resurfacing (sealed bids due March 18, 2026 at 9:00 a.m.). Work is typically awarded on a low-bid basis to responsible contractors holding appropriate state licensure, with performance and payment bonds required at or near 100 percent of contract value and project completion timelines ranging from 45 to 365 working days depending on scope.