Keywords: Dunlap's Creek Bridge, northern side.jpg 40 1 17 N 79 53 18 W Northern downstream side of the w Dunlap's Creek Bridge which carries Market Street the old National Road over Dunlap's Creek in Brownsville Pennsylvania Brownsville Pennsylvania United States Built in 1839 it was the first cast iron bridge in the United States and it is listed on the National Register of Historic Places Own 2011-09-30 User Nyttend Nyttend Dunlap's Creek Bridge Building-centered pictures by User Nyttend Taken with Canon PowerShot A540 |