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NHCR - Upper Ammonoosuc River Bridge

Coos County, New Hampshire

Photos 

Bridge as seen from Rt 3

Photo taken by Panoramio user JBTHEMILKER

License: Creative Commons Attribution-NoDerivs (CC BY-ND)

View this photo at panoramio.com

BH Photo #268950

Map 

Street View 

Facts 

Overview
Through truss bridge over Upper Ammonoosuc River on New Hampshire Central Railroad
Location
Groveton, Coos County, New Hampshire
Status
Open to traffic
History
Built in 1883 by Boston Bridge Works
Builders
- Boston Bridge Works of Boston, Massachusetts
- Edward S. Shaw of Boston, Massachusetts (Bridge Engineer)
- Isaac M. Story (Chief Engineer)
Railroads
- New Hampshire & Vermont Railroad (NHVT)
- New Hampshire Central Railroad (NHCR)
Design
Baltimore through truss
Approximate latitude, longitude
+44.59276, -71.51591   (decimal degrees)
44°35'34" N, 71°30'57" W   (degrees°minutes'seconds")
Approximate UTM coordinates
19/300307/4940791 (zone/easting/northing)
Quadrangle map:
Groveton
Inventory number
BH 58503 (Bridgehunter.com ID)

Categories 

19th Century (6,886)
Baltimore through truss (296)
Baltimore truss (326)
Boston Bridge Works (94)
Built 1883 (144)
Built during 1880s (1,837)
Coos County, New Hampshire (55)
Edward S. Shaw (8)
Groveton, New Hampshire (2)
Have street view (25,414)
 Isaac M. Story (1)
New Hampshire (592)
New Hampshire & Vermont Railroad (6)
New Hampshire Central Railroad (2)
Open (38,217)
Owned by railroad (11,102)
Railroad (14,369)
Riveted (2,052)
Through truss (14,046)
Truss (31,236)

Update Log 

  • August 23, 2017: New photos from Michael Quiet
  • January 28, 2016: New photos from Mike Garland
  • October 21, 2013: Updated by Luke Harden: Added railroad
  • October 21, 2013: Added by Dave King

Sources 

  • Mike Garland - Rapier342 [at] comcast [dot] net
  • Dave King - DKinghawkfan [at] hotmail [dot] com
  • Luke
  • Michael Quiet - mquiet [at] gmail [dot] com
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Comments 

NHCR - Upper Ammonoosuc River Bridge
Posted August 23, 2017, by Michael Quiet (mquiet [at] gmail [dot] com)

Here is another significant Coös County Bridge. This is quite early for a fully riveted truss bridge, a testament to the innovative nature of the Boston Bridge Works. Its certainly among the oldest riveted bridges nationally. Its also a very early (oldest extant?) example of a Baltimore truss. Tied together, these two facts make this bridge historically and technologically significant.

Aside from that though, its quite a visually appeasing bridge. All members are built up boxes on the truss web, giving it a airy and intricate look. Given the light traffic of the NHCR this bridge should be safe for the time being