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Central Bridge

John E. Cox Memorial Bridge

   
                  


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Central Bridge
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Bridge Documented: July 12, 2008
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Key Facts
Bridge Name Facility Carried / Feature Intersected Location Structure Type Construction Date and Builder/Engineer
Central Bridge
John E. Cox Memorial Bridge
Bridge Street Over Merrimack River Lowell: Middlesex County, Massachusetts Metal Cantilever 10 Panel Rivet-Connected Warren Through Truss, Fixed 1937 By Builder/Contractor: American Bridge Company of New York, New York and Engineer/Design: J. R. Worcester and Company
Technical Facts
Main Span Length Structure Length Roadway Width Main Spans NBI Number
197 Feet (60 Meters) 474 Feet (144.5 Meters) 40 Feet (12.2 Meters) 3 L150192FTDOTNBI

Historic Significance Rating (HSR)

Primary Photographer(s): Nathan Holth and Rick McOmber

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

View Massachusetts Historical Commission (MHC) Inventory Forms For This Historic Bridge

This bridge is significant as a rare example of a small-scale through truss cantilever. Most cantilever bridges were built on much larger rivers, and as part of their design also feature towers that loom over the rest of the truss. With a smaller span, and lower tower height, this bridge offers a much different appearance than the standard cantilever truss bridge. It is historically and technologically significant as an example of a relatively small-scale application of cantilever truss bridge engineering. This bridge also retains good structural and historic integrity, and its continued maintenance is logical choice for both preservation and fiscal purposes.

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Photos and Videos: Central Bridge

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A collection of overview and detail photos. For the best visual immersion and full detail, or for use as a desktop background, this gallery presents the photos for this bridge in the original digital camera resolution.
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A collection of overview and detail photos. View the photos for this bridge in a reduced size which is useful for mobile/smartphone users, modem (dial-up) users, or those who do not wish to wait for the longer download times of the full-size photos. Alternatively, view this photo gallery using a popup slideshow viewer (great for mobile users) by clicking the link below.
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