Casselman River Bridge

  • Location: Garrett County, MD
  • Owner: Maryland Dept. of Natural Resources
  • General Contractor: Brayman Construction Corporation
  • Estimated Value: $500K
  • Completion Date: May 2013

The Casselman River Bridge is one of the oldest surviving bridges in the country. This 80-foot, stone-arch bridge was originally built in 1813 as part of the old National Road. At the time of its construction, the Cassleman River Bridge was the longest single-span bridge in the United States. When a portion of the northwest wingwall collapsed, the Maryland DNR and DGS contracted with Brayman for an emergency stabilization. The remediation included salvaging the original facing stones, removing the existing bridge deck, and excavating 9 feet below deck elevation. Next, a reticulated micropile system was installed utilizing 7″ micropiles and capped with reinforced concrete. The wingwall was rebuilt with the salvaged facing stones and excavation backfilled with clean stone.  Finally, the exposed aggregate concrete deck was pour back into place. Brayman was able to perform a majority of the work from the interior of the bridge, thus helping to preserve the banks of this popular fly fishing hole.

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