Historic Bridges
of the United States
Big Salt River Bridge
Midland County
,
Michigan
Overview
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TopoZone
Terraserver USA
Facts
Overview
Lost pony truss bridge over Big Salt River on North Saginaw Road in Sanford
Location
Midland County
,
Michigan
Status
No longer exists
History
Built 1932; replaced 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
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)
USGS topographic map
Sanford
Inventory numbers
NRHP 99001532
(National Register of Historic Places reference number)
BH 20144
(Bridgehunter.com ID)
Inspection
(as of 09/2007)
Deck condition rating:
Very Good
(8 out of 9)
Superstructure condition rating:
Very Good
(8 out of 9)
Substructure condition rating:
Very Good
(8 out of 9)
Sufficiency rating: 93.6
(out of 100)
Average daily traffic
(as of 1999)
2,899
Categories
Built 1932
(597)
Built during 1930s
(7,082)
Lost
(6,201)
Lost 2001
(363)
Lost during 2000s
(2,322)
Michigan
(435)
Midland County, Michigan
(13)
NR-listed
(1,668)
Owned by county
(14,545)
Parker pony truss
(134)
Parker truss
(552)
Pony truss
(11,789)
Skewed
(3,683)
Span length 100-125 feet
(2,631)
Structurally deficient
(14,984)
Total length 100-125 feet
(2,937)
Truss
(19,464)
Comments
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