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Gravois Mills Bridge

Map 

Facts 

Overview
Lost pony truss bridge over Gravois Creek on Route TT at Gravois Mills
Location
Morgan County, Missouri
Status
Washed away by a flash flood during July 1998
History
Built 1925; destroyed by flooding in 1998; replaced by new bridge in 1999
Design
Pony truss
Dimensions
Length of largest span: 69.8 ft.
Total length: 370.0 ft.
Deck width: 20.0 ft.
Approximate latitude, longitude
+38.32610, -92.83508   (decimal degrees)
38°19'34" N, 92°50'06" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/514415/4242010 (zone/easting/northing)
Quadrangle map:
Gravois Mills
Land survey
T. 41 N., R. 17 W., Sec. 8
Inventory numbers
MoDOT H-46 (Missouri Dept. of Transportation bridge number)
BH 22151 (Bridgehunter.com ID)
Inspection (as of 12/1991)
Deck condition rating: Serious (3 out of 9)
Superstructure condition rating: Serious (3 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 13.2 (out of 100)
Average daily traffic (as of 1991)
377

Categories 

Built 1925 (1,143)
Built during 1920s (8,845)
Destroyed by flood (333)
Lost (18,855)
Lost 1998 (388)
Lost during 1990s (3,715)
MO 5 (15)
Missouri (5,955)
Morgan County, Missouri (12)
Owned by state (13,861)
Pony truss (15,068)
Span length 50-75 feet (8,979)
Structurally deficient (18,538)
Total length 250-500 feet (4,659)
Truss (29,505)

Update Log 

  • July 13, 2015: Updated by Clark Vance: Location, NBI

Sources 

  • Clark Vance - cvance [at] dogmail [dot] com