Historic Bridges of the U.S. | Suncook River Bridge

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Photos

Suncook Double Decker Bridge - downstream.

Downstream side of the double-decker bridge that carried route 3 over the Suncook River At the town line between Allenstown and Pembroke, NH. Removed 2007.

Photo taken by David P. Timmins

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Suncook Double Decker Bridge - upstream

Upstream side of the double-decker bridge that carried route 3 over the Suncook River At the town line between Allenstown and Pembroke, NH. Removed 2007.

Photo taken by David P. Timmins

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Suncook Double Decker Bridge - old and new.

The new double-decker goes up along side the old bridge. Very similar design.

Photo taken by David P. Timmins

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Hard road to follow

The new bridge is in, the old one has been removed. It looks like the mapping software hasn't quite caught up with reality.

Photo taken by David P. Timmins

Facts

Overview: Deck truss bridge over Suncook River on US 3 in Allenstown
Location: Merrimack County, New Hampshire
Status: Open to traffic
History: Built 1931, removed 2007.
Design: Deck truss. True double deck bridge. Both upper and lower decks
Dimensions: Length of largest span: 148.0 ft.
Total length: 394.0 ft.
Deck width: 25.6 ft.
Recognition: Eligible for the National Register of Historic Places
Approximate latitude, longitude: +43.12722, -71.44444 (decimal degrees)
43°07'38" N, 71°26'40" W (degrees°minutes'seconds")
Approximate UTM coordinates: 19/301164/4777843 (zone/easting/northing)
USGS topographic map: Suncook
Inventory number: BH 25002 (Bridgehunter.com ID)
Inspection (as of 08/2007): Deck condition rating: Excellent (9 out of 9)
Superstructure condition rating: Excellent (9 out of 9)
Substructure condition rating: Excellent (9 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 2.0 (out of 100)
Average daily traffic (as of 2005): 9,500