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Howe Bridge

Photos 

Howe Bridge

Elevation from southwest quadrant

Photo taken by Nick Boppel in July 2020

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BH Photo #475254

Map 

Description 

This bridge is an unusual variant of a timber stringer bridge that could perhaps be best classified as a "hollow timber box beam". The bridge superstructure at first glance appears to be a traditional timber stringer, however the structure is actually a hollow "box". It is not known if there is any reinforcing material inside like was sometimes done for concrete arch bridges. The bridge bears some resemblance to the northernmost vehicular bridge over the Mississippi River at the Headwaters - on Wilderness Drive/Park Drive: http://bridgehunter.com/mn/clearwater/bh81882/

Facts 

Overview
Timber stringer bridge over South Branch Piscataquog River on Parker Road
Location
New Boston, Hillsborough County, New Hampshire
Status
Open to traffic
History
Built 1937; rehabilitated 2003
Design
Unusual variant of timber stringer that could be best described as a "hollow timber box beam"
Dimensions
Length of largest span: 52.5 ft.
Total length: 114.2 ft.
Deck width: 25.9 ft.
Approximate latitude, longitude
+43.01511, -71.64134   (decimal degrees)
43°00'54" N, 71°38'29" W   (degrees°minutes'seconds")
Approximate UTM coordinates
19/284755/4765878 (zone/easting/northing)
Average daily traffic (as of 2017)
1,303
Inventory number
BH 89841 (Bridgehunter.com ID)
Inspection report (as of July 2017)
Overall condition: Fair
Superstructure condition rating: Very Good (8 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Deck condition rating: Very Good (8 out of 9)
Sufficiency rating: 86 (out of 100)
View more at BridgeReports.com

Update Log 

  • July 5, 2020: New photos from Nick Boppel

Related Bridges 

Sources 

  • Nick Boppel - nickboppel01 [at] gmail [dot] com