Bridgehunter.com | U.S. Route 4 Bridge

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Photo taken by Historic American Engineering Record

Overview: Lost Pratt through truss bridge over Mascoma River on U.S. 4
Location: Grafton County, New Hampshire
Status: Replaced by new bridge
History: Built 1940; replaced 1993
Builder: - R.G. Watkins & Son
Design: Riveted, 7-panel Pratt through truss
Dimensions: Length of largest span: 150.9 ft.
Total length: 164.1 ft.
Deck width: 25.9 ft.
Vertical clearance above deck: 13.5 ft.
Recognition: Eligible for the National Register of Historic Places
Approximate latitude, longitude: +43.65020, -72.05930 (decimal degrees)
43°39'01" N, 72°03'33" W (degrees°minutes'seconds")
Approximate UTM coordinates: 18/737154/4837225 (zone/easting/northing)
USGS topographic map: Canaan
Inventory number: BH 44770 (Bridgehunter.com ID)
Inspection (as of 10/1991): Deck condition rating: Serious (3 out of 9)
Superstructure condition rating: Serious (3 out of 9)
Substructure condition rating: Poor (4 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 0.0 (out of 100)
Average daily traffic (as of 1989): 7,000