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US0090B over MISSISSIPPI RIVER - GNO#

Map

Coordinates:
+29.93771, -90.06092
29°56'16" N, 90°03'39" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US0090B over MISSISSIPPI RIVER - GNO#
Structure number:023602830802442
Location:02362830802442
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Tolls:Yes [1]
Length of largest span:1575.2 ft. [480.1 m]
Total length:3019.2 ft. [920.2 m]
Roadway width between curbs:91.9 ft. [28.0 m]
Deck width edge-to-edge:102.0 ft. [31.1 m]
Vertical clearance above deck:25.3 ft. [7.7 m]
Vertical clearance below bridge:149.9 ft. [45.7 m]
Owner:State Highway Agency [01]
Year built:1985
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:3
Main spans material:Steel continuous [4]
Main spans design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: November 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:101,880 [as of 2015]
Truck traffic:5% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Equal to present minimum criteria [6]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Equal to present desirable criteria [8]
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]
Pier/abutment protection:In place and functioning [2]
Scour condition:Countermeasures have been installed to mitigate an existing problem with scour. [7]
Operating rating:57.9 tons [52.6 metric tons]
Inventory rating:34.9 tons [31.7 metric tons]
Sufficiency rating:77.4

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201677.4FairGoodSatisfactoryGood-101880
November 201477.6FairGoodSatisfactoryGood-98640
January 201378.4FairGoodSatisfactoryGood-90780
August 200880.6GoodVery GoodGoodVery Good-69360
August 200681.0GoodVery GoodGoodVery Good-65880
September 200281.1GoodVery GoodGoodVery Good-64612
July 199879.0GoodVery GoodVery GoodVery Good-65932
July 199381.9GoodVery GoodGoodVery Good-92397
October 199183.0GoodVery GoodGoodVery Good-78636
October 198985.0GoodVery GoodVery GoodVery Good-78636

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Stringerlinear ft.48,41648,416000
Deck
Reinforced Concrete Decksq. ft.190,8250190,82500
Superstructure
Steel Trusslinear ft.12,1049,7961,9433650
Steel Floor Beamlinear ft.6,1744,4111,76300
Substructure
Reinforced Concrete Pier Walllinear ft.1310300
Joints
Compression Jointlinear ft.54032022000
Assembly without Seal Jointlinear ft.135135000
Bearings
Movable Bearingeach60420
Fixed Bearingeach44000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.9,0606,5602,50000