UNSPSC 81103403: Detailed engineering services

Detailed engineering encompasses the design and configuration of various engineering systems that form the internal workings of a facility, including: Process design & specification. Mechanical design & specification. Piping design & specification. Structural design & specification.

UNSPSC 81103403 Detailed engineering services, a Commodity code, covers site investigation, master planning, design, feasibility analysis, and construction oversight work that state and local governments procure across water and wastewater systems, transportation corridors, stormwater infrastructure, facility improvements, and coastal resilience initiatives. Recent opportunities show that issuing bodies deploy this code for comprehensive system assessments—such as the City of Edinburg's 20-year Water and Sewer Master Plan and Santa Clara County's Subregional Shoreline Adaptation Plan—and for facility condition assessments and regulatory due-diligence reviews, including El Paso County Hospital District's multidisciplinary evaluations of medical office and ambulatory surgical center properties. The code also captures construction engineering and inspection services, design-build Owner's Engineer support, and task-order-based on-call engineering frameworks serving multiple concurrent projects within a single jurisdiction.

Issuing bodies soliciting under this code include city transportation and public works departments (Phoenix, Fort Myers, Daytona Beach, Manchester, Lewisville), county governments and special districts (Okaloosa County, Collier County, San Mateo County, Beaufort County, Hillsborough County, Escambia County), transit and water authorities (Santa Clara Valley Transportation Authority, Lower Colorado River Authority, West Basin Municipal Water District), and university systems (Texas State University, University of Texas at San Antonio). Recent activity concentrates in Florida, California, Texas, Arizona, Connecticut, and the Upper Midwest, with scattered opportunities in New Mexico and the Carolinas. Representative opportunities include the City of Fort Myers soliciting CEI services for waterway debris removal under NRCS grants (due October 29, 2026), the Town of Manchester requesting design services for a 2,000-linear-foot box culvert replacement in an urban environment (due November 10, 2026), Waukesha County seeking engineering and design services for a High Risk Rural Road project (due November 3, 2026), and Hillsborough County Capital Programs requesting miscellaneous subsurface investigation and testing services on a $6 million four-year contract (due November 3, 2026). Work is commonly procured under state consultants' competitive negotiation frameworks, with multi-award continuing-service agreements and task-order issuance being standard structures when demand spans multiple projects or years.