I-74 Improvements in East Peoria, Illinois
Chastain provided Phase II design engineering services for the reconstruction of approximately one mile of I-74 in East Peoria from the Illinois River to the TP&W Railroad. This project consisted of the complete reconstruction of the eastbound and westbound I-74 with a new continuously reinforced concrete pavement with three lanes in each direction and a closed barrier type median, as well as, the complete reconstruction of the existing trumpet interchange (Riverfront Drive Interchange). Work included preparation of plans, specifications and estimates, structure plans, preparation of retaining wall type studies, highway drainage design, traffic signal plans, and traffic staging plans. In 2006 and 2007, Chastain received an award for Exceptional Consulting Engineering Service from IDOT. IDOT commented during the award presentation... "The effective traffic management and construction staging developed by Chastain provided access to the many commercial establishments throughout the construction and kept the project on schedule. Unique soil conditions required a wick drain system to alleviate pore pressures during surcharge loading and unconventional pipe culvert designs in order to address the 6 to 44 inches of anticipated settlement. The firm also addressed the wetland and floodplain environmental concern by designing an earthen retaining wall with a cast-in-place facing along a ramp to eliminate any encroachment on the environmentally sensitive area." Total construction cost was $33 million. In the final evaluation from IDOT, Chastain received a "Good" for our performance. In 2007, Chastain received an Honor Award for the I-74 design from the ACEC.
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