3 votes

Blue Water Bridge



Photo taken by Clayton B. Fraser, November 1994, for HAER

View photos at Library of Congress

BH Photo #120554

Street Views 


Through truss bridge over St. Clair River on Westbound I-94 in Port Huron
Port Huron, St. Clair County, Michigan
Open to traffic
Built 1938; rehabilitated 1999
- American Bridge Co. of New York
- Modjeski & Masters of Mechanicsburg, Pennsylvania
- Paul Philippe Cret
- Ralph Modjeski of Bochnia, Poland (Design)
- Sarnia Bridge Co. of Sarnia, Ontario, Canada
- Wisconsin Bridge & Iron Co. of Milwaukee, Wisconsin
Through truss cantilevered arch bridge
Length of largest span: 871.1 ft.
Total length: 6,178.8 ft. (1.2 mi.)
Deck width: 34.8 ft.
Vertical clearance above deck: 17.1 ft.
Posted to the National Register of Historic Places on August 29, 1980
Approximate latitude, longitude
+42.99917, -82.42500   (decimal degrees)
42°59'57" N, 82°25'30" W   (degrees°minutes'seconds")
Approximate UTM coordinates
17/383848/4761707 (zone/easting/northing)
Quadrangle map:
Port Huron
Average daily traffic (as of 2007)
Inventory numbers
NRHP 80004841 (National Register of Historic Places reference number)
MINBI 77177111000B044 (Michigan bridge number on the National Bridge Inventory 2010 and before)
MINEW 09988 (Michigan bridge number on the National Bridge Inventory 2011 and later)
BH 20237 (Bridgehunter.com ID)
Inspection report (as of October 2018)
Overall condition: Good
Superstructure condition rating: Very Good (8 out of 9)
Substructure condition rating: Very Good (8 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 68 (out of 100)
View more at BridgeReports.com

Update Log 

  • April 14, 2021: New photo from Geoff Hubbs
  • September 12, 2019: New photos from Jann Mayer
  • October 23, 2017: Updated by Matthew: Changed to most common name & condensed design description
  • July 27, 2016: New photos from Royce and Bobette Haley
  • February 4, 2015: Photo imported by Dave King
  • October 11, 2012: New photo from Jann Mayer
  • April 13, 2010: New Street View added by Nathan Holth
  • August 11, 2008: Updated by J.R. Manning
  • August 10, 2008: Updated by J.R. Manning


  • J.R. Manning - thekitchenguy [at] sbcglobal [dot] net
  • HAER MI-16-A - Blue Water Bridge, Spanning St. Clair River at I-69, I-94, & Canadian Route 402, Port Huron, St. Clair County, MI
  • Michigan DOT Historic Bridges - Blue Water Bridge page of the MDOT Historical Bridges listings
  • Nathan Holth
  • Historicbridges.org - by Nathan Holth
  • Jann Mayer - jannmayer [at] gmail [dot] com
  • Royce and Bobette Haley - roycehaley111 [at] yahoo [dot] com
  • Geoff Hubbs