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M-15 Cass River Bridge

Historical Street View: August 2012 

By Google


Lost Steel stringer bridge over Cass River on M-15
Vassar, Tuscola County, Michigan
Replaced by a new bridge
Built 1938; replaced 2015
Steel stringer
Length of largest span: 54.8 ft.
Total length: 165.0 ft.
Deck width: 44.0 ft.
Also called
Huron Avenue Bridge
Approximate latitude, longitude
+43.37083, -83.58056   (decimal degrees)
43°22'15" N, 83°34'50" W   (degrees°minutes'seconds")
Approximate UTM coordinates
17/290928/4805230 (zone/easting/northing)
Average daily traffic (as of 2013)
Inventory numbers
MINEW 10410 (Michigan bridge number on the National Bridge Inventory 2011 and later)
BH 94607 (Bridgehunter.com ID)
Inspection report (as of November 2017)
Overall condition: Good
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Excellent (9 out of 9)
Deck condition rating: Very Good (8 out of 9)
Sufficiency rating: 77.9 (out of 100)
View more at BridgeReports.com

Update Log 

  • October 6, 2021: Essay added by Mike Kerkau

Related Bridges 


  • Mike Kerkau - mjkerkau [at] gmail [dot] com


M-15 Cass River Bridge
Posted October 6, 2021, by Nathan Holth (webmaster [at] historicbridges [dot] org)

This is interesting to see a salvage and reuse of R4 railing on a new bridge. I wish it would have been done on other bridges. Usually its only done on a limited number of repair projects or projects involving historic bridges.

M-15 Cass River Bridge
Posted October 6, 2021, by Mike Kerkau (mjkerkau [at] gmail [dot] com)

So, this would have been what replaced the pony truss over the Cass River in Vassar. This, in turn, was replaced in 2015.

I've posted the latest StreetView from before it was replaced - which is from 2012.

Now, here's the StreetView for the bridge that's there now: https://www.google.com/maps/@43.3708732,-83.5807253,3a,75y,3...

Looks awfully similar, doesn't it?

The contractor, Hardman Construction, chose to retain the R4 railing from the previous bridge and re-used it for this one.

Project details (this is one of four featured projects currently listed on their site): https://www.hardmanconstruction.com/capabilities/bridges/