UNSPSC 31331301: Aluminum sonic welded structural assemblies

UNSPSC 31331301 Aluminum sonic welded structural assemblies is a Commodity code under which state and local governments procure structural steel and concrete components for bridge and infrastructure construction projects. Recent activity shows that the code is being applied to solicitations for pedestrian and vehicular bridge work, including steel truss decks, prestressed concrete piles, concrete end bents, and associated structural elements. The issuing bodies are primarily cities and counties managing capital improvement programs, with San Antonio's Capital Delivery Department and Sarasota County appearing as active buyers. The work involves structural fabrication and assembly as part of larger construction contracts, typically delivered through IFB and competitive sealed proposal (RFP-equivalent) formats.

Recent opportunities are concentrated in Texas and Florida. Sarasota County issued an IFB (Solicitation 262861MN) on July 29, 2026 for the Midnight Pass Road Pedestrian Bridge, a steel truss bridge with deck, prestressed concrete piles, concrete end bents, approach slabs, and sidewalks, with a response deadline of July 27, 2026. The City of San Antonio Capital Delivery Department posted two competitive sealed proposals in June and July 2026: RFCSP2026025 for Hays Street Bridge Connections & Eastside Area Streets (due August 25, 2026), which includes structural shapes and building construction components, and RFCSP2026071 for Fire Station #33 Facility Replacement (due July 30, 2026), funded through the 2022 Bond, involving site work, concrete, and structural shapes. Pre-bid conferences and mandatory site visits were required for the San Antonio solicitations.