Old Mill Road Bridge, Spanning Saucon Creek, Old Mill Road, Hellertown, Northampton County, PA
Significance: One of two existing pony-truss spans built by the Beckel Foundry. Both used variations of Francis C. Lowthorp's 23 June 1857 and 13 March 1860 patented cast lower-chord connections. The Old Mill and the Walnut Street bridges incorporate unusual cast-iron beams to support decks.
Unprocessed Field note material exists for this structure: N16
Survey number: HAER PA-93
Building/structure dates: after. 1860- before. 1880 Initial Construction
Building/structure dates: after. 1930- before. 1940 Initial Construction