Shelburn, IN

SR 48 Superstructure Replacement

This project involved a superstructure replacement of the existing bridge over Kettle Creek. The existing bridge was a three-span continuous reinforced concrete slab bridge on SR 48 in Sullivan County. The existing superstructure was deteriorated, and the bridge had scour concerns. The project design also involved replacement of the reinforced concrete approaches, approach guardrail, and placement of new riprap on the spillslopes and around the existing piers. The maintenance of traffic utilized a road closure with a detour.

Martin County, IN

Bridge 58 Replacement

HWC completed survey, environmental, permitting, right-of-way acquisition, utility coordination, and design for the replacement of the existing 150’ non-select historic bridge over Boggs Creek in Martin County within the Vincennes District. HWC was responsible for completing a funding analysis report and the Historic Bridge Alternatives Analysis for the bridge prior to the start of design. HWC also completed a revised floodway boundary for the project to minimize floodway impacts and mitigation costs for the project. HWC was responsible for coordinating impacts with permit agencies and mitigation banks to assist in securing mitigation credits utilizing the DNR In-Lieu Fee Mitigation Program for environmental mitigation.

The bridge replacement consisted of a 166’-long three-span continuous composite hybrid prestressed concrete bulb-tee beam bridge with an out-to-out bridge width of 28’-6”. The bridge utilized a three beam system supporting a new reinforced concrete bridge deck and TS-1 railing. The bridge is supported by end bents on piles and wall piers with spread footings on piles driven to rock. Due to poor soil conditions, the roadway sideslopes were reconstructed with an aggregate base and riprap. The project maintenance of traffic consisted of a road closure with a detour. The project was awarded for construction in 2024 at a cost of $3.2 million. HWC was also responsible for the construction inspection on the project. Construction was completed in 2025.

Washington County, IN

 SR 56 Bridges over Mill Creek and Goose Creek 

HWC provided road and bridge design, utility coordination, and maintenance of traffic (MOT) design for these two bridge rehabilitation projects. The existing bridges were three-span, prestressed concrete I-beam bridges along SR 56 in the Seymour District. The scope of bridge work included a rigid overlay with semi-integral abutment conversions and the replacement of the reinforced concrete bridge approaches. MOT included phasing of the bridge work by using temporary signals.