Route 31 Bridge, New Jersey Route 31, crossing disused main line of Central Railroad of New Jersey (C.R.R.N.J.) (New Jersey Transit's Raritan Valley Line), Hampton, Hunterdon County, NJ

Significance: The bridge was built with Route 31 (originally Highway 30) as part of the highway expansion program undertaken by the state during 1923-1742. It is a three-span example of the concrete-encased steel girder type. The bridge has been identified as a contributing element in the Central Railroad of New Jersey Main Line Corridor Historic District.
Survey number: HAER NJ-124
Building/structure dates: 1934 Initial Construction