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I-55 over MISSISSIPPI RIVER

Map 

Coordinates:
+35.13000, -90.08000
35°07'48" N, 90°04'48" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I-55 over MISSISSIPPI RIVER
Structure number:79I00550101
Location:ARKANSAS STATE LINE
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:790.1 ft. [240.8 m]
Total length:5222.4 ft. [1591.7 m]
Roadway width between curbs:51.8 ft. [15.8 m]
Deck width edge-to-edge:65.0 ft. [19.8 m]
Vertical clearance above deck:17.4 ft. [5.3 m]
Vertical clearance below bridge:61.7 ft. [18.8 m]
Owner:State Highway Agency [01]
Year built:1949
Historic significance:Bridge is on the National Register of Historic Places [1]
Design load:M 18 / H 20 [4]
Number of main spans:5
Main spans material:Steel continuous [4]
Main spans design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: December 2015 

Status:Open, no restriction [A]
Average daily traffic:40,000 [as of 2016]
Truck traffic:1% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
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 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:46.2 tons [42.0 metric tons]
Inventory rating:27.5 tons [25.0 metric tons]
Sufficiency rating:48.5
Recommended work:Bridge deck rehabilitation with only incidental widening. [36]
Estimated cost of work:$90,361,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
December 201548.5Not deficientSatisfactoryFairSatisfactory40000
December 201325.3Structurally deficientFairFairSatisfactory40000
November 201143.9Not deficientFairFairSatisfactory40000
October 200943.9Not deficientFairFairSatisfactory40000
May 200748.9Not deficientFairSatisfactorySatisfactory45420
May 200548.9Not deficientFairSatisfactorySatisfactory49000
April 200350.6Not deficientFairSatisfactorySatisfactory40000
February 200151.9Not deficientGoodSatisfactorySatisfactory47080
December 199951.9Not deficientGoodSatisfactorySatisfactory44710
April 199851.9Not deficientGoodSatisfactorySatisfactory47440
December 199549.9Not deficientGoodSatisfactorySatisfactory42430
July 199349.9Not deficientGoodSatisfactorySatisfactory34230
August 199360.0Not deficientGoodGoodSatisfactory36250
May 199160.0Not deficientGoodGoodSatisfactory32420
March 198960.0Not deficientGoodGoodSatisfactory32420