TERRA Engineering provided the design for a new bridge carrying Northbound IL Route 116 over Ten Mile Creek in East Peoria, Illinois. For Phase I of the project, TERRA completed hydraulic modeling/analysis for the waterway and bridge, scour analysis, and traffic management planning. During the Phase I study, TERRA discovered that scour was threatening the stability of the existing bridge. For the Phase II design, TERRA proposed an asymmetrical structure to mitigate the threat of scour. TERRA’s design replaced the old bridge structure with re-shaped slope walls to enlarge the waterway opening and better transition flow through the structures. The new bridge and waterway design present a hydraulically efficient structural channel crossing while providing a solution to the existing and future scour threats.

Design of the bridge was completed in Spring 2012 and construction will begin shortly.


Terra was the prime for this job.