INTERRA provided materials coordination for this phase III project which consisted of the replacement and improvement of the major segments of aging infrastructure which served as multiple use within western Cook County. The improvement included pavement reconstruction, retaining walls, lighting, traffic signal installation, and all incidental and collateral work required for project completion. This improvement also helped the flow of traffic between both Cook County and DuPage County. The project required extensive coordination with several townships, counties, railroads, and utilities.