Historic Stone Arch Bridge Rehabilitation: Preserving the Past for Sustainability in the Future
Presenters: Brian J. Carlson, Greenman Pedersen, Inc. and Michael J. Mann, McMahon & Mann Consulting Engineering and Geology, P.C.
The South Main Street Bridge is a historic arch bridge built circa 1872 and comprised of two stone arches with two abutments, a center pier, and stone spandrel walls and parapets. A 2014 inspection detected severe deterioration of the arches, thereby compromising support of the bridge. Based on the historic nature of the bridge, it was decided to rehabilitate the structure instead of replacing it. During the rehabilitation, the original structure was exposed, providing an interesting snapshot into construction techniques in the late 1800’s. This presentation will review the project focusing on the foundation improvement work done, rehabilitation of the arch barrels, spandrel walls and parapets. We will also discuss the impact utilities had on the project, and lessons learned through the process of restoring this 140+ year-old structure.
About the speakers:
Brian Carlson, P.E. is a Senior Engineer with GPI/Greenman Pedersen Inc. He has worked with many types of bridges including stone masonry arches and is a Past President of the Buffalo Section of the ASCE and a member of the Association of Bridge Construction and Design.
Michael J. Mann, P.E. has BS and MS degrees in Civil Engineering from UB with 40 years experience. Mr. Mann and Donald R. McMahon formed McMahon & Mann Consulting Engineers in 1993, specializing in geotechnical and environmental engineering.
This meeting is being graciously sponsored by Earth Dimensions, Inc. Contact EDI for drilling and professional environmental service needs.