Photos 

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View, Looking From Northwest, Showing Approach

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General Side Elevation View, Looking From Northwest

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General View, Looking From Northwest, Showing Pier

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Detail View, Looking From West Along Northwest Walkway, Showing Vertical Compression Members 5. 'Barrel Shot' View Looking Across Bridge From The West

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Photo taken by Historic American Engineering Record

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Detail View, Looking From West Along Southside Walkway, Showing Vertical Endpost

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General View, Looking From Southwest, Showing Approach

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Detail View, Looking From Southwest, Showing Cast Iron Guard Rail

Photo taken by Historic American Engineering Record

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General View Of Bridge, Looking From Northeast

Photo taken by Historic American Engineering Record

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Detail View, Looking From Northeast, Showing Reinforced Floor Beams

Photo taken by Historic American Engineering Record

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Detail View Of Endpost, Showing '1870' Date In Cast Iron

Photo taken by Historic American Engineering Record

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Detail View Of North Side Of Bridge, Looking From Nest, Showing Top Chord Connection

Photo taken by Historic American Engineering Record

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Detail View Of North Side Of Bridge, Showing Wrought Iron Diagonals With Adjustment Device

Photo taken by Historic American Engineering Record

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Detail View Of South Side Of Compression Members. Note Twentieth Century Steel Compression Member In Right Foreground

Photo taken by Historic American Engineering Record

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Detail View Of Guard Rail Along North Side Of Bridge

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Detail View Of Upper Chord Connection, Showing Octagonally-Shaped Upper Chord Compression Member

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Detail View Of Guard Nail

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Facts 

Overview
Two-span iron pony truss bridge over South Branch Raritan River on W. Main Street in Clinton
Location
Hunterdon County, New Jersey
Status
Open to traffic
History
Built 1870
Builders
- Charles Cowin
- William Cowin
Design
Pratt pony truss
Dimensions
Length of largest span: 85.0 ft.
Total length: 170.0 ft.
Deck width: 15.7 ft.
Recognition
Posted to the National Register of Historic Places
Inventory numbers
NJ 10XX0N1 (New Jersey bridge number)
BH 25277 (Bridgehunter.com ID)
Inspection (as of 06/2007)
Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 23.5 (out of 100)
Average daily traffic (as of 2007)
340

Update Log 

  • April 19, 2009: Posted HAER photos

Sources 

  • HAER NJ-19 - West Main Street Bridge, Spanning South branch of Raritan River, Clinton, Hunterdon County, NJ
  • James Baughn - webmaster [at] bridgehunter [dot] com