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Winona Bridge

Winona Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: June 4, 2013 and August 9, 2013

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Location
Winona: Winona County, Minnesota: United States
Structure Type
Metal Cantilever Rivet-Connected Warren Through Truss, Fixed and Approach Spans: Metal Rivet-Connected Warren Deck Truss, Fixed
Construction Date and Builder / Engineer
1941 By Builder/Contractor: American Bridge Company of New York, New York and Engineer/Design: Minnesota Highway Department
Rehabilitation Date
2019
Main Span Length
450.0 Feet (137.2 Meters)
Structure Length
2,282.0 Feet (695.6 Meters)
Roadway Width
30.8 Feet (9.39 Meters)
Spans
3 Main Span(s) and 21 Approach Span(s)
Inventory Number
5900

Historic Significance Rating (HSR)
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Bridge Documentation

Bridge Status: Rehabilitation of this historic bridge's cantilever spans was undertaken, but its deck truss spans were replaced.

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

View A MNDOT Historical Overview of This Bridge

This bridge is an example of a large cantilever truss bridge, a structure type that is rapidly becoming rare in the United States due to demolition and replacement. The bridge is a good, traditionally composed example of a cantilever truss bridge. The trusses retain good historic integrity with no major alterations. The deck however has been altered. The original railings were lost and the sidewalk moved to the outside of the east truss by adding a cantilevered sidewalk. This allowed for converting the original sidewalk inside the truss lines into part of a wider roadway. The deck replacement project which took place in 1985 led to the loss of the original railings. Outlined in the original plans, the original railings are of interest, because they take on a style that was immensely popular in the state of Michigan and province of Ontario, as well as other Canadian provinces. For the most part, only these two places used this railing style, but a few isolated examples have been found in other nearby states including Minnesota, Indiana, and Ohio... suggesting perhaps neighboring states borrowed ideas from the states around them.

For a while, this bridge was at risk for demolition. However, the Section 106 Review appears to have done some good, and currently the cantilever truss spans of this bridge are slated for rehabilitation. A new bridge is proposed to be built next to the historic bridge, forming a one-way couplet of bridges. HistoricBridges.org hopes that MNDOT will continue to move forward with this rehabilitation plan. The only bad news is that the plan is to demolish and replace the deck truss spans of this bridge. While they are not as significant as the main cantilever spans, these deck truss spans are character defining features of the bridge, meaning the bridge will not look the same with them replaced, and the bridge will lose some historic significance by the loss of these spans. Its not entirely clear why these deck truss spans could not be preserved. They may have more deterioration than the through truss spans because trusses under the roadway tend to get more corrosive winter salt exposure. However, research has shown many ways to restore and repair riveted trusses.

The northernmost deck truss span is quite unusual because the northern end has a polygonal bottom chord and inclined end post at the northern end, while the southern end is not polygonal and has a vertical end post lke all the other deck truss spans. This detail seems to be a design to make the deck truss "blend" into the abutment. The southern end of the bridge does not have this detail because the deck truss spans give way to more approach spans consisting of a deck plate girder span and followed by a series of concrete t-beam spans.

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Photo Galleries and Videos: Winona Bridge

 

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Structure Overview

Original / Full Size Photos
A collection of overview photos that show the bridge as a whole and general areas of the bridge. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer.
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View Photo Gallery

Structure Details

Original / Full Size Photos
A collection of detail photos that document the parts, construction, and condition of the bridge. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer.
Alternatively, Browse Without Using Viewer

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View Photo Gallery

Structure Overview

Mobile Optimized Photos
A collection of overview photos that show the bridge as a whole and general areas of the bridge. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer.
Alternatively, Browse Without Using Viewer

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View Photo Gallery

Structure Details

Mobile Optimized Photos
A collection of detail photos that document the parts, construction, and condition of the bridge. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer.
Alternatively, Browse Without Using Viewer

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Maps and Links: Winona Bridge

Coordinates (Latitude, Longitude):

Search For Additional Bridge Listings:

Bridgehunter.com: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

Bridgehunter.com: View listed bridges within 10 miles (16 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 10 miles (16 kilometers) of this bridge.

2021 National Bridge Inventory: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

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USGS National Map (United States Only)

Historical USGS Topo Maps (United States Only)

Historic Aerials (United States Only)

CalTopo Maps (United States Only)


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