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Nearby Bridges in NBI 2021: 1


US 49 over MISSISSIPPI RIVER (Route: 49)
Num:210004901433710x
Open: no restriction [A]
Built: 1961, Reconstructed: 1991
Historic: Bridge is eligible for the NRHP. [2]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.8 Kilometers)

Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Steel [3] Girder and floorbeam system [03]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 1586.2 m = 5204.3 ft
Main Spans: 5 at 256 m = 839.9 ft
Approach Spans: 16
Skew: 0
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 9.5 m = 31.2 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 5.3 m = 17.4 ft and Navigational Clearance: 18.2 m = 59.7 ft
Location
District 1 [90126]: Coahoma County [027], Mississippi [28]
Owned by State Highway Agency [01], DOT District: 2
MISS/AR STATE LINE
Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 20 metric ton = 22.0 tons (Load Factor(LF) [1])
Inventory: 11.8 metric ton = 13.0 tons (Load Factor(LF) [1])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: December 2020 [1220] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 19.9 km = 12.3 mi
Traffic
ADT: 3900 (2019) and Trucks: 15%
Future ADT: 4600 (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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