+32.27493, -90.19311
32°16'30" N, 90°11'35" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Structure number:10000200250460A
Location:UNDER I 20 W BRIDGE 45.8
Purpose:Carries highway over waterway
Route classification:Collector (Urban) [17]
Length of largest span:50.9 ft. [15.5 m]
Total length:206.0 ft. [62.8 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:34.5 ft. [10.5 m]
Vertical clearance above deck:16.4 ft. [5.0 m]
Owner:State Highway Agency [01]
Year built:1964
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:4
Main spans material:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: August 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:3,500 [as of 2014]
Truck traffic:5% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:64.0 tons [58.2 metric tons]
Inventory rating:58.1 tons [52.8 metric tons]
Sufficiency rating:78.6
Recommended work:Widening of existing bridge with deck rehabilitation or replacement. [34]
Estimated cost of work:$270,000,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201678.6GoodGoodVery GoodVery GoodFO3500
August 201478.8GoodGoodVery GoodVery GoodFO3500
August 201278.8GoodVery GoodVery GoodVery GoodFO3500
October 201178.8GoodVery GoodVery GoodVery GoodFO3500
July 201078.8GoodVery GoodVery GoodVery GoodFO3500
June 200876.8GoodVery GoodVery GoodVery GoodFO3500
June 200676.8GoodVery GoodVery GoodVery GoodFO3500
October 200476.8GoodVery GoodVery GoodVery GoodFO3200
August 200276.9GoodVery GoodVery GoodVery GoodFO2400
September 200076.7GoodVery GoodVery GoodVery GoodFO5000
September 199876.7GoodVery GoodVery GoodVery GoodFO5000
November 199676.4GoodVery GoodVery GoodVery GoodFO5000
February 199574.4GoodVery GoodVery GoodVery GoodFO6460
April 199174.4GoodVery GoodVery GoodVery GoodFO5870