4 votes

Grosse Ile Free Bridge


Photo taken by C Hanchey

License: Creative Commons Attribution-NonCommercial (CC BY-NC)


View this photo on Flickr

BH Photo #343730

Street Views 


Swing Camelback through truss bridge over Trenton Channel on Grosse Ile Pkwy
Wayne County, Michigan
Intact but closed to all traffic in May 2020 for repairs
Built 1931 on piers of Michigan Central rail bridge; opened September 3, 1931; rehabilitated 1980
- Augustus J. Dupuis Co. of Detroit, Michigan (Substructure)
- Duffin Iron Co. of Chicago, Illinois (Fabricator)
- Great Lakes Dredge & Dock Co. of Oak Brook, Illinois
- Rossen, Evans & Rossen of Chicago, Illinois (Engineers)
East to west,
Two deck plate girder spans, approximately 100' each
Riveted, 14-panel Camelback through truss swing, 339'6"
Eight deck plate girder spans, approximately 100' each
Length of largest span: 339.5 ft.
Total length: 1,345.9 ft.
Deck width: 20.0 ft.
Posted to the National Register of Historic Places
Approximate latitude, longitude
+42.12733, -83.17432   (decimal degrees)
42°07'38" N, 83°10'28" W   (degrees°minutes'seconds")
Approximate UTM coordinates
17/320282/4666201 (zone/easting/northing)
Quadrangle map:
Average daily traffic (as of 2007)
Inventory numbers
MINBI 82200010000B020 (Michigan bridge number on the National Bridge Inventory 2010 and before)
MINEW 12006 (Michigan bridge number on the National Bridge Inventory 2011 and later)
BH 20275 (Bridgehunter.com ID)
Inspection report (as of June 2018)
Overall condition: Poor
Superstructure condition rating: Serious (3 out of 9)
Substructure condition rating: Poor (4 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 50 (out of 100)
View more at BridgeReports.com

Update Log 

  • September 21, 2022: New Street View added by Paul Plassman
  • January 6, 2021: New Street View added by Geoff Hubbs
  • December 12, 2015: Updated by Luke: Name change + imagery
  • December 12, 2015: New Street View added by Douglas Butler
  • November 25, 2013: New photo from Douglas Butler
  • November 22, 2013: New Street View added by J.P.

Related Bridges 


  • Historicbridges.org - by Nathan Holth
  • J.P. - wildcatjon2000 [at] gmail [dot] com
  • Douglas Butler
  • Luke
  • Geoff Hubbs
  • Paul Plassman