Historic Bridges of the U.S. | St. Johns Creek Route YY Bridge

Photos

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Oblique view

Photos taken by Jack Schmidt

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Deck view

Vicinity map

Map links:

Overview: Three-span pony truss bridge over St. Johns Creek on Route YY
Location: Franklin County, Missouri
Status: Open to two-lane traffic
History: Built 1957
Design: Warren pony truss
Dimensions: Length of largest span: 81.3 ft.
Total length: 187.0 ft.
Deck width: 20.0 ft.
Approximate latitude, longitude: +38.49874, -91.09635 (decimal degrees)
38°29'55" N, 91°05'47" W (degrees°minutes'seconds")
Approximate UTM coordinates: 15/666004/4262870 (zone/easting/northing)
Land survey: T. 43 N., R. 2 W., Sec. 1
USGS topographic map: Union
Inventory numbers: MoDOT N-141 (Missouri Dept. of Transportation bridge number)
MONBI 6791 (Missouri bridge number on the National Bridge Inventory)
BH 21508 (Bridgehunter.com ID)
Inspection (as of 01/2007): Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 6.0 (out of 100)
Average daily traffic (as of 2006): 1,410