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 (Commodity) represents a broad scope of design and technical consulting work that state and local governments source across infrastructure, water resources, facility improvements, and emergency recovery projects. Recent solicitations show state and local agencies buying architectural and engineering design services, construction administration and inspection oversight, feasibility and condition assessments, permitting and regulatory support, and specialized technical consulting for capital projects ranging from roadway and utility improvements to water treatment facility upgrades and disaster recovery initiatives.

State agencies, county governments, cities, transit authorities, water districts, and special-purpose authorities are all active buyers under this code. Repeat activity comes from water and wastewater utilities (Great Lakes Water Authority, West Basin Municipal Water District, multiple Florida counties and municipalities), transportation agencies (Collier County, Harris County Toll Road Authority, multiple city public works departments), and disaster recovery programs (Escambia County, City of Fort Myers, Sarasota County for Hurricane Ian-related work). Recent opportunities cluster in Florida, Texas, Arizona, Michigan, California, Colorado, Oregon, New Hampshire, and South Carolina, with Florida showing particularly dense activity across coastal resilience and flood mitigation projects. Representative current solicitations include Rockland County, New York requesting architecture and engineering design for veterans cemetery beautification (RFP due August 18, 2026); the City of Dallas seeking engineering services for stormwater and flood protection planning and design (RFP due August 21, 2026); Sarasota County requesting professional coastal engineering services for the Casey Key Resiliency Project—a 4.5-mile beach restoration and erosion control effort involving 45 coastal structures and approximately 1,005,800 cubic yards of sand placement (Request for Professional Services due August 19, 2026); and the Great Lakes Water Authority seeking project management and construction inspection staff augmentation to provide supplemental engineering and inspection capacity across multiple concurrent projects in Wayne County, Michigan (RFP due August 10, 2026). Work is commonly structured as on-call or continuing professional services agreements, with individual task orders issued as projects arise, though fixed-fee and time-and-material hybrid arrangements also appear frequently.