3 votes

New Hampton Bridge


Photo taken by Historic American Engineering Record

View photos at Library of Congress

BH Photo #172120

Street View 


Written by Andrew Pearce

"New Hampton" is a historical designation for the area, a town that never really existed. This is just one of half a dozen bridges that crosses the Musconetcong River between Rt 31 and Point Mountain Road, but it is the oldest by far, and a lovely little bridge of extreme rarity.

The Musconetcong River is the county line, so on one side of the bridge it's Shoddy Mills Road, on the other side it's Rymon Road; the bridge has at least 3 viable names.

Amazingly, as the river floods almost every year and the other bridges get washed away, this one manages to survive.

It actually gets pretty regular usage too, with a local car or light truck crossing it once every minute or so on most days, yet it has survived all this time with just the most minimal guard rails in place.


Iron pony truss bridge over Musconetcong River on Rymon Road
Hunterdon County, New Jersey, and Warren County, New Jersey
Closed to traffic
Built 1868 by the Cowin Iron Works for the Pennsylvania Railroad; rehabilitated 1991
- Cowin Iron Works of Lambertville, New Jersey
Pin-connected, 8-panel, wrought- and cast-iron pony truss with vertical endpoints
Length of largest span: 80.1 ft.
Total length: 85.0 ft.
Deck width: 16.1 ft.
Posted to the National Register of Historic Places
Also called
Shoddy Mill Road Bridge
Rymon Road Bridge
Approximate latitude, longitude
+40.72048, -74.96351   (decimal degrees)
40°43'14" N, 74°57'49" W   (degrees°minutes'seconds")
Approximate UTM coordinates
18/503081/4507729 (zone/easting/northing)
Quadrangle map:
High Bridge
Inventory numbers
NRHP 2102225 (National Register of Historic Places reference number)
NJ 2102225 (New Jersey bridge number)
BH 45831 (Bridgehunter.com ID)

Update Log 

  • March 29, 2022: New Street View added by Geoff Hubbs
  • July 22, 2020: New photos from Patrick Gurwell
  • July 9, 2020: New photos from Patrick Gurwell
  • April 5, 2020: New photo from Geoff Hubbs
  • February 18, 2018: New photos from Chester Gehman
  • February 17, 2018: New Street View added by Dana and Kay Klein
  • June 9, 2014: Updated by Chester Gehman: Clarified location, type and builder; photos
  • March 1, 2013: Updated by Andrew Pearce: added NRHP number and cross-listing hyperlinks
  • August 27, 2012: Essay added by Andrew Pearce
  • August 7, 2010: Added by James Baughn


  • James Baughn - webmaster [at] bridgehunter [dot] com
  • HAER NJ-91 - New Hampton Bridge, Spanning Musconetcong River, New Hampton vicinity, Hunterdon County, NJ
  • Historicbridges.org - by Nathan Holth
  • Chester Gehman - gehmanc2000 [at] yahoo [dot] com
  • Dana and Kay Klein
  • Geoff Hubbs
  • Patrick Gurwell - pgurwell [at] gmail [dot] com


New Hampton Bridge
Posted June 7, 2021, by Nathan Holth (webmaster [at] historicbridges [dot] org)


Pages merged.

Shoddy Mill Road Bridge
Posted June 5, 2021, by Art S. (Asuckewer [at] knite [dot] com)


These two entries are the same bridge:




Art S.

Shoddy Mill Road Bridge
Posted June 5, 2021, by Art S. (Asuckewer [at] knite [dot] com)

The bridge is listed as closed. This is worrying. Does anyone know what's going on?

Shoddy Mill Road Bridge
Posted August 22, 2014, by ArtS (asuckewer [at] knite [dot] com)
New Hampton Bridge
Posted August 22, 2014, by ArtS (asuckewer [at] knite [dot] com)

Thought I'd post this article here as well, its about the manufacturer: