I-465/I-70 Interchange Design-Build

Additional construction of improvements to Shadeland Avenue, Pendleton Pike, Post Road, and 21st Street were also part of this project to increase the capacity of alternative routes for traffic during construction. Installation of new highway and interchange lighting and signing were also included. This project replaced the pavement and upgraded the geometrics for I-465 from just south of the Pendleton Pike interchange to just north of the Washington Street interchange on Indianapolis' east side. Additional lanes were added and ramps were realigned. The existing inner loop ramp that allowed movement from I-465 southbound to I-70 eastbound was removed and relocated to a flyover of I-70 and under I-465. Ten bridges in the project were rehabilitated and widened while nine other bridges were replaced. The I-70 eastbound to I 465 northbound ramp was one of only two ramps kept open during construction, which required these bridges to be built in two phases. The realignment of the southbound I-465 to eastbound I 70 movement required two new single-span structures to be built on I-465. These structures were built at grade, and the hole under the structures was excavated after traffic was allowed to drive on the new bridges. The end retaining walls were H Pile and lagging walls. This allowed for top-down construction. The H Piles for the walls were driven at the same time the structure bearing piles were driven. After the structures were built on the surface, the remaining excavation, paving, drainage, and wall construction were completed.