UNSPSC 20111623: Diaphragm wall clamshell

A type of equipment that is used for bucket type excavation of narrow and deep underground holes.

UNSPSC 20111623 Diaphragm wall clamshell is a Commodity code with minimal recent state and local procurement activity aligned to its nominal scope. The two most recent opportunities tagged to this code are a law enforcement equipment cooperative purchasing agreement through Sourcewell and a pond excavation project in Utah—neither of which involves diaphragm wall clamshell equipment or services as typically understood in construction or industrial applications. The law enforcement opportunity and the earthwork opportunity represent significant misalignments with the code's intended commodity classification, suggesting either broad mis-tagging by issuing bodies or a fundamental disconnect between how this code is labeled and how state and local procurement offices are actually using it.

Activity tracked under this code shows no concentrated geographic pattern or repeat issuing-body engagement. Sourcewell (a Minnesota cooperative purchasing vehicle) issued RFP #061626 for law enforcement equipment with a June 16, 2026 response deadline, structured to serve participating entities across multiple states and Canada. The State of Utah Division of Purchasing issued IFB NC26-68 for pond excavation services in Corinne, Utah, with a May 6, 2026 bid deadline and a mandatory April 30, 2026 pre-bid site visit. Neither opportunity reflects the work typically associated with diaphragm wall construction. Firms evaluating this code should verify its current applicability in their target markets and consider whether recent tagging reflects genuine procurement demand or systematic miscoding in state and local systems.