The Glen Gardner Pony Pratt Truss Bridge is a historic pony Pratt truss bridge on School Street (formerly Mill Street) crossing the Spruce Run in Glen Gardner of Hunterdon County, New Jersey. It was designed by Francis C. Lowthorp and built in 1870 by William Cowin of Lambertville, New Jersey.[3] The bridge was added to the National Register of Historic Places on September 22, 1977 for its significance in engineering, industry and transportation. It is one of the few early examples of iron Pratt truss bridges remaining in the United States.[4] It was later documented by the Historic American Engineering Record in 1991.[5]
Glen Gardner Pony Pratt Truss Bridge | |
 Glen Gardner Bridge in 1991 | |
    | |
| Location | School Street (Mill Street) over Spruce Run Glen Gardner, New Jersey |
|---|---|
| Coordinates | 40°42′04.5″N 74°56′36.5″W / 40.701250°N 74.943472°W |
| Built | 1870 |
| Built by | William Cowin |
| Architect | Francis C. Lowthorp |
| Architectural style | Pratt truss |
| NRHP reference No. | 77000876[1] |
| NJRHP No. | 1592[2] |
| Significant dates | |
| Added to NRHP | September 22, 1977 |
| Designated NJRHP | August 5, 1976 |
Description
editThe Glen Gardner bridge is one of three remaining composite cast iron and wrought iron Pratt truss bridges built by Cowin in New Jersey. The others are the New Hampton Pony Pratt Truss Bridge (1868) in New Hampton and the Main Street Bridge (1870) in Clinton. The single-span bridge is 84 feet (26 m) long and 16.6 feet (5.1 m) wide.[3] It features a pedestrian walkway with a decorative cast-iron railing.[4]
Gallery
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View looking east -
View looking west -
Railing detail, looking north
See also
editReferences
edit- ^ "National Register Information System – (#77000876)". National Register of Historic Places. National Park Service. November 2, 2013.
- ^ "New Jersey and National Registers of Historic Places – Hunterdon County" (PDF). New Jersey Department of Environmental Protection – Historic Preservation Office. June 23, 2021. p. 7.
- ^ a b "School Street over Spruce Run River, Glen Gardner Borough" (PDF). New Jersey Historic Bridge Survey: Hunterdon County. New Jersey Department of Transportation. November 12, 2012. p. 184.
- ^ a b Karschner, Terry (December 1975). "National Register of Historic Places Inventory/Nomination: Glen Gardner Pony Pratt Truss Bridge". National Park Service. With accompanying photo
- ^ "Glen Gardner Bridge, Spanning Spruce Run". Historic American Engineering Record. 1991.
External links
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Media related to Glen Gardner Pony Pratt Truss Bridge at Wikimedia Commons- Historic American Engineering Record (HAER) No. NJ-92, "Glen Gardner Bridge, Spanning Spruce Run, Glen Gardner, Hunterdon County, NJ", 15 photos, 1 color transparency, 3 data pages, 2 photo caption pages
- School Street Bridge at Structurae
