Jefferson County, Pennsylvania
SAI was responsible for the Preliminary Engineering, Final Design, ROW Acquisition, and Services During Construction for the replacement of the existing bridge over Redbank Creek in Jefferson County, Pennsylvania.
The physical features of this project include:
- 210′ two-span continuous steel multi-girder bridge over Redbank Creek.
- Deck consists of two 10′ lanes, 3′-3″ shoulders and a total width of 28′-6″ Out-to-Out.
- 400′ of roadway approach reconstruction of a two-lane rural local road with an ADT of 250.
Other features of this project include:
- Substructure components consist of three different units: Full height abutment supported by piles (Abutment 1), Full height abutment on spread footing (Abutment 2), two 54″ diameter columns/drilled shafts spaced on 18′-0″ centers with a 5’-0″ wide pier cap (Pier).
- Traffic maintained via an approximate 7-mile detour utilizing the Redbank Creek crossing in the Borough of Summerville. Access to residential homes, Soggy Bottom Campground, and the Redbank Valley Trail to be maintained at all times.
- Constructability challenges included but not limited to: Close proximity of SR 28 requiring shifting of SR 28 traffic as far north as possible, contractor access, causeway construction and localized flooding, and overhead utilities limiting pile driving and bridge demolition and erection.
- Demolition of one residential home.
- Providing a gravel parking area for kayakers at the home demolition location.
- Utility coordination include temporary and permanent relocations of overhead utilities to allow for construction access and construction operations.
- Signing and Pavement Marking Plan.
- Erosion and Sedimentation Pollution Control Plan.
- Permit acquisition and agency coordination.
Project Owner: Pennsylvania Department of Transportation, District 10-0
Completion Date: 2025 (anticipated)
Cost: $4,750,000