UNSPSC 31371301: Porous blocks

UNSPSC 31371301 Porous blocks (Commodity) is a narrow Commodity code whose nominal scope—porous masonry units for drainage or load-bearing applications—shows little alignment with actual state and local procurement activity under the code's recent tagged opportunities. The three most recent solicitations involve roundabout construction (City of Austin), pavement rehabilitation and street reconstruction (Santa Clara County and City of Salem, Oregon), none of which center on porous blocks as a primary procurement category. The code appears to be used as a catch-all or secondary classification for infrastructure projects that may incidentally involve permeable paving materials or drainage-system components, but the opportunities are driven by concrete curbs, gutters, sidewalks, asphalt overlay, and site drainage features rather than standalone porous-block supply or installation. Issuing bodies span municipal public works departments (Austin, Salem) and county transportation authorities (Santa Clara County), each managing mid-to-large capital improvements under competitive sealed-bid or IFB processes. The broader pattern suggests this Commodity code does not reflect a distinct procurement activity stream; rather, it appears to capture miscellaneous or subordinate materials within larger infrastructure contracts.

Geographic activity centers on California (Santa Clara County, May 2026 ITB) and the Pacific Northwest (Salem, Oregon, March 2026 ITB), with recent Texas activity (Austin, July 2026 IFB). The City of Austin's 2022 SS4A Rutland/Parkfield Roundabout (IFB6100CLMC1160, due July 9, 2026 at 2:00 PM) is the most recent opportunity, focusing on utility-duct bank installation and erosion control with MBE/WBE/DBE compliance plans required. Santa Clara County's Central Expressway Pavement Rehabilitation Project (ITBRDAFY260694, due May 21, 2026) spans partial-depth recycling, asphalt overlay, and PCC curb-and-gutter work across a 142-working-day schedule. The City of Salem's Streetscape Improvements Phase V (SKS004300016054, due March 17, 2026, engineer's estimate $1,854,000 to $2,368,000) includes PCC curb, gutter, and sidewalk reconstruction with landscaping and drainage improvements. No recent opportunities isolate porous blocks as a standalone procurement target; the code's activity appears incidental to broader pavement and site-drainage work within transportation and municipal infrastructure projects.