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Sumner Avenue Bridge

Iowa Bridge Number 6140

Sumner Avenue Bridge

Primary Photographer(s): Nathan Holth and Rick McOmber

Bridge Documented: July 1, 2009

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Key Facts

Facility Carried / Feature Intersected
Sumner Avenue Over West Fork Des Moines River
Location
Humboldt: Humboldt County, Iowa: United States
Construction Date and Builder / Engineer
1920 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
82 Feet (25 Meters)
Structure Length
297 Feet (90.5 Meters)
Roadway Width
25.3 Feet (7.71 Meters)
Spans
3 Main Span(s)
NBI Number
6140

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

This bridge no longer exists!

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

This historic bridge was demolished and replaced in 2014!

This bridge is a beautiful three span arch bridge. The bridge features attractive design such as inset rectangles, balustrade railings that curve outward at the ends, and piers that blend into the shape of the arch spandrel and are designed to line up with the larger railing posts on the bridge. As such, the bridge is a beautiful structure that represents a form of bridge that was commonly built in the 1920s in urban settings. With one major and glaring exception, the bridge retains good historic integrity. The glaring exception is that the original railings on the northern side of the bridge were destroyed, apparently to make way for a sidewalk. Ugly cyclone fencing sits in their place. However that being said, the south side which retains original railings is the easily accessible side of the bridge and on that side the bridge is very photogenic and photos taken there do not even show the alteration to the bridge.

HistoricBridges.org recommends that this bridge be restored for continued vehicular use. If needed, the bridge could be widened on the north side. Since the original railings are already missing, this would be the best side to do this on. Also, the ugly railings on the north side could be replaced with new concrete balustrades that simulate the original railings. Many states have found ways to build new concrete railings that meet AASHTO requirements yet also have a historic balustrade design.

Apparently, the city of Humboldt does not recognize the value of this historic bridge both as a piece of community heritage as well as an aesthetic asset, since this bridge is apparently slated for demolition and replacement. Hopefully they will reconsider and develop a comprehensive rehabilitation that preserves this historic bridge.

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Photo Galleries and Videos: Sumner Avenue Bridge

 
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Bridge Photo-Documentation
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A collection of overview and detail photos. 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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Bridge Photo-Documentation
Mobile Optimized Photos
A collection of overview and detail photos. 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: Sumner Avenue Bridge

This historic bridge has been demolished. This map is shown for reference purposes only.

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