Historical Documentary Report on the Bridge and Wheel Houses, Hopewell Furnace (Buildings 10 and 8, Hopewell Village NHS)
Apple RA. 1956. Historical Documentary Report on the Bridge and Wheel Houses, Hopewell Furnace (Buildings 10 and 8, Hopewell Village NHS). National Park Service. Washington, D.C.
Hopewell Furnace was constructed by Mark Bird in 1770-1771. Since a means was needed immediately to hoist and deliver charges to the tunnelhead, we believe that at least a bridge had been constructed by 1771, the first year Hopewell Furnace may have been in blast.