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Alec Johnson Road Bridge

Johnson Road Bridge

Alec Johnson Road Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: June 9, 2010 and October, 2012

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and Videos
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Facility Carried / Feature Intersected
Alec Johnson Road (Johnson Road) Over Whitefish River
Location
Rural: Alger County, Michigan: United States
Construction Date and Builder / Engineer
1910 By Builder/Contractor: Unknown
Rehabilitation Date
Not Available or Not Applicable
Main Span Length
40.0 Feet (12.2 Meters)
Structure Length
42.0 Feet (12.8 Meters)
Roadway Width
16 Feet (4.88 Meters)
Spans
1 Main Span(s)
Inventory Number
02304A00006B010

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

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

This bridge is a small three panel Pratt half-hip pony truss that appears to retain good historic integrity. Original channel railings are present on the bridge. A fairly recent, yet historically accurate traditional wooden deck with running boards is present on the bridge. The bridge is supported by caissons. Given that another bridge in the county was built by Joliet Bridge and Iron Company, and given that the design of the bridge resembles other Joliet bridges elsewhere in the state, this bridge may also be the work of the Joliet Bridge and Iron Company, although there is no factual evidence at this time. Another issue with this bridge is with the construction date. A 1910 date is listed in the National Bridge Inventory. However some the metal on the bridge has the name "Jones and Laughlins." After around 1905, Jones and Laughlins dropped the "s" from their name. As such, this either indicates that the construction date for this bridge is incorrect, or that the metal on the bridge was already five years old or more when the bridge was built. The latter is possible, since many bridge builders likely stockpiled commonly used iron and steel and may have not used it all immediately.

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Photo Galleries and Videos: Alec Johnson Road Bridge

 

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Bridge Photo-Documentation

Original / Full Size Photos
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.
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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.
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View Video

Westbound Crossing

Full Motion Video
Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.

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View Video

Eastbound Crossing

Full Motion Video
Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.

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Maps and Links: Alec Johnson Road 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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