The Courthouse Creek Bridge, located in the mountains of North Carolina, near Asheville, is a U.S. Forest Service fire road bridge (#140) that has silted up to the deck level. The existing bridge is a concrete ford type structure with corrugated metal pipes underneath. The U.S. Forest Service hired Armstrong Glen to design a bridge with a substructure elevation above the 100-year high water mark.
For this project, Armstrong Glen, PC provided hydrologic and hydraulic analysis as well as engineering design for a new sixty foot span steel beam bridge with cast-in-place deck. The Forest Service selected the steel beam bridge for the final design due to ease of transporting the beams to the bridge site.
Project Duration: July 2010- May 2013. Construction was completed in late 2014.
Construction cost: $390,000.