TR 174 over Snake Creek Branch
Morgan County, Illinois
TR I74 over Snake Creek Branch
Hutchison Engineering, Inc. was selected by the Morgan County Highway Department to provide Phase I and II engineering services for the replacement of the structure carrying Township Road 174 (Arcadia Road) over Snake Creek Branch. The project is located approximately 4.5 miles north of Jacksonville, Illinois. Township Road 174 is classified as a local road with an average daily traffic of 100.
This project involved the removal of the existing single-span structure consisting of a reinforced concrete deck on steel girders supported by closed timber abutments and timber piling. The existing structure was 34 feet in length and 26 feet in width and showing significant signs of distress in the substructure elements. In particular, this structure was experiencing significant to complete section loss of the timber abutment back walls and to a lesser extent the timber piling. The abutments were also experiencing rotation resulting in improper seating and bearing of the steel beams on the abutment caps. The replacement structure is a single-span precast, prestressed, 33-inch concrete deck beam structure. The structure is supported on concrete spill-thru pile bent abutments. The new structure is 79 feet in length and 28 feet in width with no skew. The project was constructed under full road closure.
