Construction Engineering and Inspection Services

Owner: Illinois State Toll Highway Authority (ISTHA)
Location: Various Locations, Illinois

Infrastructure Engineering, Inc. provided Phase II and Phase III engineering services, which was required for the construction inspection, supervision and material testing at selected locations on the Tollway System.

Projects undertaken to date include the following: 

• ISTHA Epoxy Pavement Marking - Systemwide 
• East-West Tollway Intermittent Pavement Repairs Mile Post 127.9 to Mile Post 138.0
• Tri-State Tollway Intermittent Pavement Repairs Mile Post 25.2 (Hinsdale Oasis), Mile Posts 26.8 (47th Street) to Mile Post 29.0 (31st Street), Mile Post 38.7 (Irving Park Road)
• Tri-State Tollway Retaining Wall and Culvert Rehabilitation Mile Post 74.4 to 77.2