Ross Hill Road Bridge - Keller Engineers

Responsibilities

Survey
Easement Right-of-Way Plans
General and Joint Permits
Erosion/Sedimentation Control Plans
Design and Build - Bridge Replacement
Design and Build - Road/Highway Rehabilitation and Safety Improvements
Drainage/Stormwater Management Improvements
Utility Engineering/Coordination
Construction Consultation
Construction Inspection

Owner

Gregg Township, Centre County

Project Details

This project is the replacement of the existing 54’ long three span encased steel I-beam Bridge that carries T-468 (Ross Hill Road) over Penns Creek in Gregg Township, Centre County. The bridge is located adjacent to the T-intersection of T-468 (Ross Hill Road) and SR 2012 (Penns Cave Road). This project offered several design challenges that made the use of twin cell 26’-0” x 6’-0” box culverts the chosen alternative.

Project Uniqueness/Challenges:

Providing intersection turning radii on the structure (end segments of the culvert were splayed).
Limiting increase in roadway profile due to intersection and hydraulics (box culverts allowed for shallowest superstructure depth).
Minimize impacts to the bed in backs EV Wetlands. (Primary cell aligned with stream channel, secondary cell contained a 1’-6” weir that will help maintain existing wetlands).
Reducing construction duration (Minimize impacts to the Amish community impacted by the detour).

The final product included 250’ of roadway work on T-468 and 200’ of widening, profile adjustment and overlay on SR 2012.

Photos

We have teamed with Keller Engineers on several design-build projects for PennDOT. When selecting a designer, the more critical factors are trust and competence, more so than a low price. If your designer makes a mistake in quantities it can cost you a lot of money. We have stayed with Keller Engineers because we trust them to provide competent service at a competitive price. S. Scott Grannas, Vice President Grannas Bros. Stone & Asphalt Co., Inc.