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Pentoga Road Bridge

Pentoga Road Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: October 1, 2012

View Photos
and Videos
View Maps
and Links

Key Facts

Facility Carried / Feature Intersected
Pentoga Road (Cherry Avenue) Over Brule River
Location
Pentoga: Iron County, Michigan and Florence County, Wisconsin: United States
Construction Date and Builder / Engineer
1924 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
1988
Main Span Length
60 Feet (18 Meters)
Structure Length
64 Feet (20 Meters)
Roadway Width
16 Feet (4.88 Meters)
Spans
1 Main Span(s)
NBI Number
4197

Historic Significance Rating (HSR)

Bridge Documentation

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

This bridge is a traditionally composed example of a rivet-connected Warren pony truss situated on the state line. In this region, both in the contexts of Michigan and Wisconsin, the bridge type is locally rare. This bridge appears to have been closed for a number of years (many maps show the road as not crossing the river) but it is open to traffic today. Some unusual cable stays have been added into the truss web as alterations, and these may have been added to reopen the bridge to traffic. Despite the alterations, the bridge remains a noteworthy example of its type in this region, given that so few truss bridges remain here.

Above: Aerial view of bridge, August 27, 2020. Click for enlargement. Photo Credit: Doug Heim, Angelcopter, LLC

Above: Aerial view of bridge, August 27, 2020. Click for enlargement. Photo Credit: Doug Heim, Angelcopter, LLC

Above: Aerial view of bridge, August 27, 2020. Click for enlargement. Photo Credit: Doug Heim, Angelcopter, LLC

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Photo Galleries and Videos: Pentoga Road Bridge

 
View Photo Gallery
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. Alternatively, Browse Without Using Viewer
View Photo Gallery
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
View Video
Entering Wisconsin On Bridge
Full Motion Video
Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.
View Video
Drone Footage, Courtesy Doug Heim, Angelcopter, LLC
Full Motion Video
Note: The downloadable high quality version of this video (available on the video page) is well worth the download since it offers excellent 1080 HD detail and is vastly more impressive than the compressed streaming 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: Pentoga Road Bridge

Coordinates (Latitude, Longitude):
46.001820,-88.500840

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