Milepost 73.3 (Oakton Street) to Milepost 78.8 (Kennedy Expressway), ISTHA Contract I-11-4015
The overall project consisted of reconstruction and widening of existing mainline and ramp pavements, reconstruction and/or rehabilitation and widening of existing bridges, construction of proposed earth retention walls, construction of new sign structures, and construction of new drainage structures and modification of the existing drainage system. Subsurface exploration, geotechnical analysis, and reporting were required for the planned roadway, bridge, retaining walls, culvert extensions, and sign structures.
We developed an exploration program in accordance with the Tollway requirements and guidelines. All work was completed in accordance with the Tollway and IDOT Geotechnical Manuals, the IDOT Standard Specifications for Road and Bridge Construction, and the latest AASHTO LRFD Bridge Specifications. Exploration for this project included:
Completed subsurface exploration for 4 culverts including a total of 14 borings to a depth of up to 55 feet and prepared SGRs including recommendations for design and construction.
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