This project for the City of Peoria began as an accelerated Phase I planning study with a hydraulic report leading to a Phase II structure and roadway design for the emergency replacement of failed dual 9’ diameter CMPs with a new dual cell 8’ x 10’ concrete box culvert. Additional geometric improvements included realigning the east leg of Bottom Road to eliminate the offset intersection, as well as the addition of turn lanes on both the state highway and Bottom Road.ĭesign challenges that were expertly addressed by our staff included relocating the channel outside of the IDOT ROW, adding a channel drop structure, realigning the intersection, dealing with potential differential settlement issues, dealing with impacts to the tall backslope, removal and disposal of regulated substances and redesigning and permitting the proposed Spring Valley Boat Club sedimentation basin which conflicted with the proposed Bottom Road realignment. The final solution included a channel realignment with a new structure relocated further back from adjacent IL Rte 89. Working closely with the County and IDOT, we were able to obtain additional funding to study geometric improvements to the intersection as a part of the structure replacement process. Putnam County officials and our engineering staff also recognized the poor geometry of the existing offset intersection of IL Rte 89 and the east and west legs of Bottom Road were contributing to unnecessary crashes. Maurer-Stutz assisted the County with successfully applying for Major Bridge Funding from the FHWA. One of the first challenges on the project was to obtain funding assistance. The bridge was originally constructed in 1950 and was in such poor condition that the trucks were no longer allowed to use the road. The Putnam County Highway Department reached out to Maurer-Stutz to discuss options for replacing their failing bridge on Bottom Road (CH 16) just east of the intersection with IL Rte 89.

Radnor township peoria il