Northampton Street Bridge, Spanning Delaware River at Northampton Street (U.S. Route 22 Alternate), Easton, Northampton County, PA

Significance: The bridge is one of a few extant eye-bar cantilever bridges in the U.S. Its long central span, supported between two cantilever arms, is carefully disguised by superfluous members so as to appear as a smooth catenary. Its appearance is tastefully balanced between Gothic flamboyance and a spartan machine aesthetic - a piece of urban "structural" art. Designed by James Madison Porter III, professor of engineering at nearby Lafayette College and an early advocate of materials testing, this bridge is his most important work...
Unprocessed Field note material exists for this structure: N625
Survey number: HAER PA-502
Building/structure dates: 1895-1896 Initial Construction
Building/structure dates: 1957 Subsequent Work