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Grosse Ile Parkway Overpass

Grosse Ile Parkway Overpass

Primary Photographer(s): Nathan Holth

Bridge Documented: October 11, 2009

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Facility Carried / Feature Intersected
Grosse Ile Parkway Over River Road
Location
Grosse Ile: Wayne County, Michigan: United States
Construction Date and Builder / Engineer
1932 By Builder/Contractor: Unknown
Rehabilitation Date
1995
Main Span Length
51.8 Feet (15.8 Meters)
Structure Length
95.8 Feet (29.2 Meters)
Roadway Width
20 Feet (6.1 Meters)
Spans
1 Main Span(s)
Inventory Number
82200010000S010

Historic Significance Rating (HSR)
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Bridge Documentation

This bridge no longer exists!

Bridge Status: Demolished and replaced in 2020.

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

This bridge is extremely significant because it is an example of Wayne County's rare cantilevered concrete arch bridges. These unusual bridges defy attempts at classification, and have also been described as curved t-beam bridges instead of arch bridges, because the arch is actually formed of individual beams rather than a solid arch structure as is normally the case with closed spandrel arch bridges. Wayne County built a number of these bridges across the county, and several examples remain today. A cantilevered concrete arch does not function like a traditional arch. Traditional arch bridges require the arch to be a complete and connected arch to function. This arch bridge does not function in that way. Each half of each arch spans is a cantilever arm that is structurally independent from the other half of the arch in that span. These cantilever arms support a suspended span which is essentially a reinforced concrete slab in the center of the bridge. Looking closely at this bridge, two seams are visible on the side of the arch, marking where the cantilever arms end and the suspended span begins.

This bridge had its original railings destroyed in 1995, resulting in a loss of historic integrity. Suggested future preservation work would be to replace the current ugly standard MDOT barrier and employ one of the several AASHTO approved concrete balustrade guardrails which feature attractive designs more similar to the original bridge railings.

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Photo Galleries and Videos: Grosse Ile Parkway Overpass

 

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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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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.
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View Video

Driving Northbound Under Bridge

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: Grosse Ile Parkway Overpass

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

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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