As a part of a various/various contract through a prime consultant, TERRA was retained by the Illinois Tollway to provide plans, specifications and cost estimates for the replacement of the Mitchell Road Bridge over I-88 near Aurora.

Work included concepts for the new bridge which required additional span lengths due to the addition of a fourth lane in each direction on I-88.

TERRA worked through iterations of steel and concrete before settling on a concrete structure with MSE closed abutment walls. The two span bridge consists of two 12-foot lanes with eight-foot shoulders.

Both the substructure and superstructure will be replaced.

Additional work for the Mitchell Road Bridge included drainage design, utility relocation, barrier warrant analysis and maintenance of traffic.


Illinois Tollway