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I0010 over MISSISSIPPI RIVER/CTY ST

Map 

Coordinates:
+30.43956, -91.20009
30°26'22" N, 91°12'00" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I0010 over MISSISSIPPI RIVER/CTY ST
Structure number:611704500900001
Location:I0010
Purpose:Carries highway over highway, waterway, and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:1235.0 ft. [376.4 m]
Total length:4550.1 ft. [1386.8 m]
Roadway width between curbs:81.7 ft. [24.9 m]
Deck width edge-to-edge:89.6 ft. [27.3 m]
Vertical clearance above deck:17.1 ft. [5.2 m]
Vertical clearance below bridge:134.8 ft. [41.1 m]
Owner:State Highway Agency [01]
Year built:1968
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: August 2014 

Status:Open, no restriction [A]
Average daily traffic:102,400 [as of 2014]
Truck traffic:6% of total traffic
Deck condition:Satisfactory [6 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: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]
Scour condition:Countermeasures have been installed to mitigate an existing problem with scour. [7]
Operating rating:56.4 tons [51.3 metric tons]
Inventory rating:33.7 tons [30.6 metric tons]
Sufficiency rating:77.2

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201477.2Not deficientSatisfactorySatisfactoryGood102400
March 201377.2Not deficientSatisfactorySatisfactoryGood102400
September 201177.2Not deficientSatisfactorySatisfactoryGood100000
February 200974.2Not deficientSatisfactorySatisfactoryGood117300
March 200674.2Not deficientGoodGoodGood110600
March 200470.2Functionally obsoleteGoodGoodGood91500
March 200274.2Not deficientGoodGoodVery Good76787
March 200074.2Not deficientGoodGoodVery Good76787
March 199875.2Not deficientGoodGoodVery Good76787
March 199675.2Not deficientGoodGoodVery Good81492
March 199476.0Not deficientGoodGoodVery Good78840
March 199263.0Not deficientGoodGoodVery Good59711