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I40 over MISSISSIPPI RIVER

Map 

Coordinates:
+35.15167, -90.07000
35°09'06" N, 90°04'12" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I40 over MISSISSIPPI RIVER
Structure number:79I00400001
Location:4 MI E JCT I-55 & I-40
Purpose:Carries highway over highway, waterway, and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:900.3 ft. [274.4 m]
Total length:9431.6 ft. [2874.6 m]
Roadway width between curbs:85.6 ft. [26.1 m]
Deck width edge-to-edge:88.9 ft. [27.1 m]
Vertical clearance above deck:18.7 ft. [5.7 m]
Vertical clearance below bridge:59.7 ft. [18.2 m]
Owner:State Highway Agency [01]
Year built:1973
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:2
Main spans material:Steel continuous [4]
Main spans design:Arch - Thru [12]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: August 2015 

Status:Open, no restriction [A]
Average daily traffic:36,000 [as of 2013]
Truck traffic:1% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:None present but re-evaluation suggested [5]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:66.0 tons [60.0 metric tons]
Inventory rating:39.6 tons [36.0 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:47.0
Recommended work:Bridge deck rehabilitation with only incidental widening. [36]
Estimated cost of work:$203,585,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201547.0Structurally deficientSatisfactoryPoorGood36000
July 201332.8Structurally deficientGoodPoorSatisfactory36000
July 201158.0Functionally obsoleteGoodFairSatisfactory48790
May 200946.0Structurally deficientFairPoorSatisfactory45990
May 200758.0Functionally obsoleteSatisfactoryFairFair50730
May 200558.0Functionally obsoleteSatisfactoryFairFair49000
April 200370.7Functionally obsoleteSatisfactorySatisfactoryGood35000
March 200167.3Functionally obsoleteSatisfactorySatisfactoryGood51530
January 20000.0Not applicable---56720
March 199867.3Functionally obsoleteSatisfactorySatisfactoryGood44600
December 199769.0Functionally obsoleteSatisfactorySatisfactoryGood51590
February 199669.1Functionally obsoleteSatisfactorySatisfactoryGood37480
August 199369.2Functionally obsoleteSatisfactorySatisfactoryGood37180
August 199274.0Functionally obsoleteSatisfactorySatisfactoryGood36790
May 199174.0Functionally obsoleteGoodGoodGood36380