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Lakeshore Drive Bridge

Lakeshore Drive Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: Spring 2007

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and Videos
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Key Facts

Facility Carried / Feature Intersected
Lakeshore Drive Over Carrigan Drain
Location
Near Port Huron: St. Clair County, Michigan: United States
Structure Type
Concrete T-Beam, Fixed
Construction Date and Builder / Engineer
1936 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
1947
Main Span Length
23 Feet (7.1 Meters)
Structure Length
28 Feet (8.5 Meters)
Roadway Width
38 Feet (11.58 Meters)
Spans
1 Main Span(s)
NBI Number
77200071000B010

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 bridge was demolished in 2012!

This bridge is not really all that noteworthy, but it serves as a great example for bridge researchers. From the top of the bridge it appears to be an unassuming 1940s/1950s steel stringer bridge, based on the railings. The simple elevation view reveals no more; the bridge still appears to be a steel stringer, with the beams visible. However, anyone who goes all the way under this bridge will find that all the center beams of the bridge are concrete t-beams. Only the few outermost beams are steel stringers. This is a 1930s concrete t-beam bridge which was widened in 1947 by adding steel stringers. The abutments were widened at this time to support the additional beams. The old abutment concrete is still visible under the bridge, but the edges of the abutment date to 1947 and include the standard stepped design that was used at this time. New railings were also placed at this time.

Although not particularly significant, this bridge shows how even the smallest bridge has a story to tell, and it also shows how much people can miss when they don't pay attention to the details.

A relatively low 15 ton weight limit was posted for this bridge in its final few years before replacement. It was previously unposted. This usually means an engineer went underneath the bridge and saw a different sort of story: deterioration. The steel beams in particular are in poor condition, likely due to a combination of winter salt application and lack of bridge maintenance. This bridge was demolished and replaced in 2012.

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Photo Galleries and Videos: Lakeshore Drive Bridge

 
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Bridge Photo-Documentation
A collection of overview and detail photos. This photo gallery contains a combination of Original Size photos and Mobile Optimized photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer

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Maps and Links: Lakeshore Drive Bridge

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

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