Livermore Falls Bridge
View Beside Bridge
Photo taken by Will Truax in March 2011
BH Photo #226424
Built for $7,100 to replace a deteriorated wooden bridge. Bridge was designed as a two span deck truss, with one long span over the river and a shorter truss span providing an approach to the river span. After being abandoned, the smaller truss span collapsed.
Statement of Significance
Written by Nathan Holth
This bridge should be considered to have an extremely high degree of historic significance as what may be the last surviving lenticular full deck truss bridge. Although the smaller approach span has collapsed, it appears that most of this span remains in place. A combination of restoration and replication could likely put this approach span back into service. The main span that remains in place appears to have outstanding historic integrity including original built-up fishbelly floor beams. The only significant element missing on the bridge appears to be the original railings.
- Pin Connected Lenticular deck truss bridge over Pemigewasset River on Abandoned Road
- Grafton County, New Hampshire
- Built 1885 by Berlin Iron Bridge Co.; Closed To Traffic 1959
- - Berlin Iron Bridge Co. of East Berlin, Connecticut
- Lenticular deck truss. It also has a Lenticular deck truss approach span.
Length of largest span: 140.0 ft.
Total length: 263.0 ft.
Deck width: 16.0 ft.
- Also called
- Pumpkin Seed Bridge
- Approximate latitude, longitude
- +43.78369, -71.66833 (decimal degrees)
43°47'01" N, 71°40'06" W (degrees°minutes'seconds")
- Approximate UTM coordinates
- 19/285289/4851308 (zone/easting/northing)
- Quadrangle map:
- Inventory numer
- BH 51557 (Bridgehunter.com ID)
- June 19, 2017: New Street View added by Dave King
- January 1, 2016: New photo from Mike Garland
- December 30, 2015: Updated by Erik Hoffman: Bridge is indeed the last known Lenticular deck truss bridge in US
- December 30, 2015: New photos from Mike Garland
- May 30, 2015: New photos from Royce and Bobette Haley
- May 3, 2014: New photos from Michael Quiet
- April 24, 2014: Updated by Michael Quiet: Added categories "Pin-connected", "Wrought Iron"
- April 5, 2014: New photos from Michael Quiet
- March 4, 2012: New photos from Will Truax
- March 1, 2012: Essay added by Nathan Holth