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Hanover Bridge

Hanover Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: June 3, 2013

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Key Facts

Facility Carried / Feature Intersected
Millpond Trail Over Crow River
Hanover: Hennepin County, Minnesota and Wright County, Minnesota: United States
Structure Type
Metal 10 Panel Pin-Connected Pratt Through Truss, Fixed and Approach Spans: Wood Stringer (Multi-Beam), Fixed
Construction Date and Builder / Engineer
1885 By Builder/Contractor: Morse Bridge Company of Youngstown, Ohio

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
190 Feet (57.9 Meters)
Structure Length
231 Feet (70.4 Meters)
Roadway Width
15.5 Feet (4.72 Meters)
1 Main Span(s) and 2 Approach Span(s)
NBI Number

Historic Significance Rating (HSR)
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Bridge Documentation

This bridge has an overall length listed of 231 feet, and a roughly estimated main span length of 190 feet. This main span is noteworthy as a long-span Pratt truss, particularly for 1885. In 1885, span lengths like this often used a Whipple truss configuration, but this bridge uses a basic Pratt. The bridge is also highly noteworthy as a bridge built by the Morse Bridge Company. Few examples of this company survive nationwide today, however, the company was noted for the variety of design and aesthetic details appearing among its surviving bridges. Where some bridge companies from the 19th Century repeatedly used the same standardized design, Morse Bridge Company seems to have changed its design either from year to year or bridge to bridge. This example is, by Morse Bridge Company, standards rather unornamented design, with its beauty coming from the geometry of its trusses alone. The bridge does have the distinctive cast iron washers on the connections that the Morse Bridge Company favored. The use of angle for lateral bracing as opposed to rod, was another typical detail on Morse Bridge Company bridges.

This bridge was closed to vehicular traffic in 1966. The bridge today is preserved for pedestrian use. The bridge retains excellent historic integrity. The loss of original railings and replacement with installation of somewhat visually obstructive wooden railings are the only major alteration noted. The bridge retains built-up floor beams and rests on riveted caissons, sometimes called Lally columns. The bridge is not painted, but is likely wrought iron which has impressive resistance to deterioration from rust. As such, the bridge appears to be structurally sound for its purpose today.


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