Rating:
No votes cast

Big Salt River Bridge

Map 

Facts 

Overview
Lost pony truss bridge over Big Salt River on North Saginaw Road in Sanford
Location
Midland County, Michigan
Status
Relocated to Perrine Road in 2001
History
Built 1920 on Gratiot Road (ex-U.S. 25) over Belle River in St. Clair County; moved to Saginaw Road (then-U.S. 10) in 1932; moved to Perrine Road in 2001
Design
Parker pony truss
Dimensions
Length of largest span: 108.9 ft.
Total length: 114.8 ft.
Deck width: 29.9 ft.
Recognition
Posted to the National Register of Historic Places on December 17, 1999
Approximate latitude, longitude
+43.67819, -84.39428   (decimal degrees)
43°40'41" N, 84°23'39" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/710040/4839431 (zone/easting/northing)
Quadrangle map:
Sanford
Average daily traffic (as of 2015)
6,297
Inventory numbers
NRHP 99001532 (National Register of Historic Places reference number)
MINBI 56200028000B010 (Michigan bridge number on the National Bridge Inventory 2010 and before)
BH 20144 (Bridgehunter.com ID)
Inspection report (as of September 2017)
Overall condition: Good
Superstructure condition rating: Very Good (8 out of 9)
Substructure condition rating: Good (7 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 84.6 (out of 100)
View more at BridgeReports.com

Categories 

Built 1920 (974)
Built during 1920s (9,476)
Lost (22,225)
Lost 2001 (433)
Lost during 2000s (4,030)
Michigan (1,041)
Midland County, Michigan (23)
NR-listed (2,878)
Owned by county (20,045)
Parker pony truss (363)
Parker truss (1,596)
Pony truss (15,689)
Replaced by new bridge (14,826)
Skewed (4,816)
Span length 100-125 feet (4,228)
Total length 100-125 feet (4,988)
Truss (31,206)

Update Log 

  • March 19, 2019: Updated by Mike Kerkau: Added history

Sources 

Comments 

Big Salt River Bridge
Posted August 24, 2019, by Mike Kerkau (mjkerkau [at] gmail [dot] com)

These photos are from when the bridge still spanned this location on Saginaw Road:

https://mcfta.pastperfectonline.com/photo/045EA3B9-72A7-44D6...

https://mcfta.pastperfectonline.com/photo/200EAED1-EF0F-4D1A...

The credits mention its now-current location on Perrine Road, but these are clearly from its time on Saginaw.

A little farther up the road, there also used to be a concrete balustrade bridge as well. It was replaced the same year this bridge was moved to Perrine:

https://mcfta.pastperfectonline.com/photo/3D02F672-7516-43E3...

https://mcfta.pastperfectonline.com/photo/C9BE11B3-8EE0-48E3...