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Discovery Bridge


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Photo taken by James Baughn

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BH Photo #107074

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Pair of through truss bridges over the Missouri River on MO 370 between St. Charles and Bridgeton
St. Charles, St. Charles County, Missouri, and St. Louis County, Missouri
Open to traffic
Built 1992
Warren through truss
Length of largest span: 625.0 ft.
Total length: 3,455.2 ft. (0.7 mi.)
Deck width: 54.8 ft.
Vertical clearance above deck: 16.5 ft.
Approximate latitude, longitude
+38.79786, -90.46637   (decimal degrees)
38°47'52" N, 90°27'59" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/720030/4297394 (zone/easting/northing)
Quadrangle map:
Saint Charles
Land survey
T. 47 N., R. 5 E., Sec. 32
Average daily traffic (as of 2016)
Inventory numbers
MoDOT A-4557 (Missouri Dept. of Transportation bridge number)
MONBI 3729 (Missouri bridge number on the National Bridge Inventory)
BH 22571 (Bridgehunter.com ID)
Inspection report (as of July 2017)
Overall condition: Fair
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Fair (5 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 76.2 (out of 100)
View more at BridgeReports.com

Update Log 

  • July 20, 2021: New photos from Nathan Holth
  • May 18, 2019: New photo from Joe Sonderman
  • August 8, 2016: New photos from David Huffman
  • January 23, 2006: Posted new photos

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