Only Remaining Covered Bridge in Northampton County Pa. Kreidersville Covered Bridge The historic Kreidersville Covered Bridge was built in 1839. In 1959, inspired citizens of Northampton County rallied for its preservation after it became known that the State Highway Department had plans to build a new concrete bridge in its place. Kreidersville Covered Bridge became one of the first covered bridges to be recognized for preservation by a committee of enthusiasts. In 1959, they formed a State organization called "The Theodore Burr Covered Bridge Society of Pennsylvania". The society was named for the arched truss patented by Theodore Burr and used in the construction of the bridge.