Delaware River Drive was created in 1911.
Delaware River Basin Commission was created in 1961.
Delaware River Port Authority was created in 1951.
Clifton Viaduct was created in 1846.
Landore viaduct was created in 1850.
Chelfham Viaduct was created in 1897.
Welland Viaduct was created in 1878.
Stambermill Viaduct was created in 1850.
Chavanon Viaduct was created in 2000.
Outwood Viaduct was created in 1846.
Kielder Viaduct was created in 1862.
Georgia Viaduct was created in 1972.