County Highway 4 over Kiser Creek
Pike County, Illinois
CH 4 Bridge Replacement

HEI was selected by the Pike County Highway Department to provide phase I and II engineering services for the replacement of the structure carrying County Highway 4 over Kiser Creek. The project is located approximately three miles south - southeast of Barry, Illinois. County Highway 4 is classified as a rural major collector with an average daily traffic of 375.
This project involved the removal of the existing three-span structure consisting of a reinforced concrete deck on steel girders supported by open abutments and individual concrete encased pile bent piers. The existing structure was 215 feet in length and 26 feet in width and showing significant signs of distress in the superstructure elements. The stream channel had also wandered up against the west abutment causing significant scour of the embankment at the abutment and the abutment itself on several occasions.
The replacement structure is a three-span structure consisting of a reinforced concrete deck on 42-inch steel plate girders. The structure is supported on solid wall piers with pile supported footings and pile supported concrete integral abutments. The new structure is 280 feet in length and 32 feet in width with no skew. The new bridge is adjacent to a curve in the roadway, and therefore a continuous two percent superelevation was used along the length of the bridge to avoid a superelevation transition on the bridge.
