Innovative Bridge Rehabilitation Project Featured in National Publication
PHILADELPHIA - Roads & Bridges magazine featured the rehabilitation of the 100-year-old Furness Bridge in their November 2015 issue. When the bridge’s owners questioned the structures’s ability to support construction and emergency vehicles as the only access point to their estate, Pennoni was contacted to perform an in-depth inspection and load rating for the bridge, which led to a creative solution for repairs. The featured article, “Treated like family,” was written by Pennoni Project Managers Joseph Spadea, PE, and William Cameron, PE.
Located in Media, Delaware County, the 60-ft bridge spans Ridley Creek and is the only entryway to the 50-acre historic estate of the Thompson Family, owners of the bridge anddescendants of Philadelphia architect Frank Furness and influential Shakespearean scholar, Horace Howard Furness. The family planned to develop additional houses on the estate, but the bridge’s strength was a concern. After preliminary inspections, Pennoni discovered settlement and cracking along the bridge’s abutment and recommended rehabilitation.
Considering the history of the family, the estate, and the bridge, Pennoni made sure to keep the natural aesthetic of the masonry, stone-arch bridge in mind when developing the design. The article highlights techniques used, such as High Definition Laser Surveying and the Modified Military Experimental Establishment (MEXE) Method, which were non-invasive to the bridge’s exterior. The final design plans outlined constructing a new bridge within the existing structure. In addition to design, Pennoni provided construction management services and was responsible for coordinating with public agencies, such as the Pennsylvania Department of Environmental Protection.
Roads & Bridges magazine is a 108-year-old trade publication, covering the transportation construction and maintenance marketplace. Published by Scranton Gillette Communications, the magazine reaches more than 62,000 print subscribers monthly and more than 55,000 online subscribers.
The article can be accessed online via Roads & Bridges: http://www.roadsbridges.com/treated-family