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Woodward and 8 Mile Tri-Level Intersection

M-1 and M-102 Tri-Level Intersection

Woodward and 8 Mile Tri-Level Intersection

Primary Photographer(s): Nathan Holth

Bridge Documented: May 29, 2022

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Facility Carried / Feature Intersected
Woodward Avenue (M-1) Over 8 Mile Road (M-102)
Location
Detroit and Ferndale: Wayne County, Michigan and Oakland County, Michigan: United States
Construction Date and Builder / Engineer
1956 By Builder/Contractor: Darin and Armstrong, Inc of Detroit, Michigan and Engineer/Design: Michigan State Highway Department
Rehabilitation Date
2006
Main Span Length
71.2 Feet (21.7 Meters)
Structure Length
255.0 Feet (77.7 Meters)
Roadway Width
83 Feet (25.3 Meters)
Spans
4 Main Span(s)
Inventory Number
7858

Historic Significance Rating (HSR)
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Bridge Documentation

This intersection between two major divided highways and its associated bridges was a major engineering achievement at the time and as such were officially found to be historic by MDOT and rehabilitated. The intersection even has a kiosk with one of Michigan's iconic green historic site interpretive plaques... one of a very small number of historic bridges in Michigan to be given one of these plaques.

During rehabilitation, Michigan's signature R4 railings were retained on both the bridges and the approaches. This interchange is thus one of the largest (if not the largest) intact installations of R4 railing in the state. When Michigan's highways and expressways were being built in the 1940s and 1950s, R4 railing would have been all over the place in the Detroit area. Nearly all R4 railing has been removed from all expressways in Detroit, this divided highway installation of R4 remains notable as a hint of what the older expressways in Detroit once looked like, showing its use not only on the bridges themselves, but on approaches and retaining walls as well.

The dimensions shown for this bridge refer to the largest structure, the top level bridge. The length refers to the bridge proper from abutment face to abutment face. Estimated total length of this structure from end of each approach ramp is 1,445 feet. Approximate length of intersection from the end of ramps on 8 Mile is 2,064 feet. Approximate length of intersection from the end of ramps on Woodward is 2,350 feet.

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

 

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Photo Galleries and Videos: Woodward and 8 Mile Tri-Level Intersection

 

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Maps and Links: Woodward and 8 Mile Tri-Level Intersection

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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