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

Builder

- Sarnia Bridge Co. of Sarnia, Ontario, Canada

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 

Update Log 

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

Related Bridges 

• Perrine Road Bridge (Parts reused in)

Sources 

• Historicbridges.org - by Nathan Holth
• Mike Kerkau - mjkerkau [at] gmail [dot] com

Comments