NIGP 91390: Maintenance and Repair, Viaduct

NIGP 91390 Maintenance and Repair, Viaduct (Item) covers construction and infrastructure work state and local governments currently solicit to replace, rehabilitate, and improve viaducts and related structures. Recent activity shows issuing bodies procuring detection systems and safety equipment at viaducts to address over-height vehicle strikes and flooding, as well as broader viaduct structural rehabilitation and pavement work. The mix of soliciting entities spans county departments of transportation (Santa Clara County in California; Jefferson County in Kentucky), transit and infrastructure authorities (Louisville Metro Government), and city/county water and wastewater utilities performing incidental viaduct-adjacent work during pump station and drainage projects. The code rolls up activity from inspection, repair, and replacement of viaduct structural components and associated safety infrastructure across multiple jurisdictions.

Recent viaduct-focused procurement centers on Kentucky and California. Louisville Metro Government and Jefferson County, Kentucky issued two overlapping solicitations (IFB260244, due May 19, 2026, and IFB260165, due April 16, 2026) for the Via-Smart Project, a federal SMART grant-funded demonstration initiative installing detection devices, signage, traffic control equipment, electrical components, communication cables, controller cabinets, cameras, conduit systems, LIDAR detectors for over-height vehicles, infrared detectors, flood detection sensors, and web relay controllers at four viaduct locations (3rd Street & Eastern Parkway, 3rd Street & Winkler Avenue, 4th Street & Industry Drive, and 15th Street & Oak Street). Santa Clara County, California issued multiple pavement rehabilitation and safety barrier improvement solicitations addressing viaduct corridors, including the Central Expressway Pavement Rehabilitation Project (ITBRDAFY260694, due May 21, 2026) and Expressway Guardrail Replacement and Safety Barrier Improvements (ITBRDAFY260652, due April 23, 2026), both ITBs with 40–45 working day completion windows. Activity outside direct viaduct work—wastewater infrastructure, water production wells, streetscape improvements—indicates the code captures ancillary construction and utility work where viaducts and drainage systems intersect with capital projects.