Offices


NapervilleGeolocation: 41.7727, -88.1999

The Naperville office opened in 1989 as an environmental office, and in 1990 expanded to include geotechnical and materials testing. Now, the Naperville office offers geotechnical, environmental, industrial hygiene, and construction materials engineering and testing services.The laboratory is certified with IDOT and with the U.S. Army Corps of Engineers. In 2006, the Naperville office expanded and opened the downtown Chicago office.

Key Projects


Sears CenterGeolocation: 42.0428, -88.0798
Ryan Companies partnered with Sears to develop a multi-purpose family entertainment, cultural, and sports center. Terracon conducted geotechnical explorations and construction materials engineering and testing for the site. Subsurface exploration for the multi-purpose arena consisted of eight soil borings that extended to depths of approximately 30 to 59 feet below the existing ground surface. Construction observation and testing services consisted of soil observation and compaction testing, foundation testing, reinforcing steel observation, concrete, masonry mortar and grout testing,…

UPRR Intermodal TerminalGeolocation: 41.525, -88.0817
Ragnar Benson Construction (RBC) was awarded the design-build contract to construct the $370-million, 785-acre Union Pacific Railroad (UPRR) Joliet Intermodal Terminal. The UPRR Intermodal Terminal is incorporated within the $2-billion, 3,900-acre CenterPoint Intermodal Logistics Center. Terracon's services included evaluation of subgrade, density testing of fill soils and aggregate base, field and laboratory testing of concrete, construction materials engineering and testing of appurtenant buildings and structures, and coordination of GPS and mobile lab reporting procedures.…

Waubonsee Community CollegeGeolocation: 41.7606, -88.3201
New Aurora Downtown Campus Waubonsee Community College sought to redevelop a riverfront property in downtown Aurora for construction of a new campus. Terracon's services included remediation oversight; construction management and materials testing; hazardous soils management; SRP enrollment and investigation; geotechnical services; and construction observation and testing during demolition and backfilling of buildings.