I-59/20 over US 31,RRS*CITY STREETS


+33.52867, -86.80429
33°31'43" N, 86°48'15" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I-59/20 over US 31,RRS*CITY STREETS
Structure number:010670
Old structure number:00000I59370241A (from 1992 edition)
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:104.0 ft. [31.7 m]
Total length:6592.2 ft. [2009.2 m]
Roadway width between curbs:69.6 ft. [21.2 m]
Deck width edge-to-edge:70.9 ft. [21.6 m]
Vertical clearance above deck:17.1 ft. [5.2 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1972
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:39
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: August 2014 

Status:Open, no restriction [A]
Average daily traffic:77,385 [as of 2015]
Truck traffic:10% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Fair [5 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:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:47.9 tons [43.5 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:48.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$107,445,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201448.0Structurally deficientFairPoorFair77385
November 201448.0Structurally deficientFairPoorFair77385
August 201348.0Structurally deficientFairPoorSatisfactory78675
August 201248.0Structurally deficientFairPoorSatisfactory78675
August 201063.9Not deficientFairFairSatisfactory78765
August 200867.0Not deficientFairFairSatisfactory80070
September 200667.2Not deficientFairFairSatisfactory78760
September 200467.0Not deficientFairFairSatisfactory80190
September 200266.9Not deficientFairFairSatisfactory81475
September 200064.4Functionally obsoleteFairFairSatisfactory82140
20000.0Not applicable---1000
September 199864.5Functionally obsoleteFairFairGood81380
August 199650.8Functionally obsoleteFairFairGood76595
June 199453.9Functionally obsoleteFairFairGood71465
December 199268.0Functionally obsoleteSatisfactorySatisfactorySatisfactory68400
January 199036.3Structurally deficientSatisfactoryPoorGood64460