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Nearby Bridges in NBI 2021: 1


MO 231 S over IS 255 (Route: 231)
Num:31869x
Open: no restriction [A]
Built: 2007, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 73.2 m = 240.2 ft
Main Spans: 2 at 36.6 m = 120.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 28.7 m = 94.2 ft (7 Lanes) and Out-To-Out: 31.3 m = 102.7 ft for a 28.7 m = 94.2 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Lemay [41456]: St. Louis County [189], Missouri [29]
Owned by State Highway Agency [01], DOT District: 5
S 1 T 43 N R 6 E
Condition
Deck: Satisfactory [6]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design:
Operating: 66.6 metric ton = 73.3 tons (Load Factor(LF) [1])
Inventory: 39.6 metric ton = 43.6 tons (Load Factor(LF) [1])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: July 2020 [0720] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 47397 (2019) and Trucks: 4%
Future ADT: 66355 (In 2039 )

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

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