COOK COUNTY, ILLINOIS This project was concerned with the roadway rehabilitation and widening, grading, and shoulder rehabilitation along the Central Tri-State Tollway (I-294) from Mile Post 31.5 to Mile Post 34.9.
Work scope consisted of performing roadway rehabilitation, grading, temporary and permanent retaining walls or retention systems to allow for the relocation of thirty-five ComEd transmission line towers along the I-294 corridor in order to add additional capacity to the Tollway.
Roadway rehabilitation included northbound and southbound median and outside shoulders in order to allow for median crossovers be constructed to facilitate with the future mainline construction.
Temporary soil retention systems were utilized at eight of the 35 total locations, and three locations implemented permanent retaining walls. The project also included the grading of each new tower location to facilitate the installation of the new foundations and transmission towers.
The project included close coordination with multiple corridor stakeholders, including the Village of Berkeley where tree pruning and removal was performed. Borrow excavation was removed from a private landowner to construct embankment for the I-490 and I-294 interchange. Coordination between the Elgin O’Hare Corridor Manager, ComEd, IDOT, as well as Cook County as also necessary for successful delivery.
Gonzalez also performed construction management services including on-site inspection; review layout of contract including design changes; provided geotechnical inspection and testing; prepared records; maintain documentation, submitted pay estimates and change orders and any other duties requiring the services of an engineer to complete this project on a timely basis and in accordance with Tollway specifications.
