+38.18500, -90.38862
38°11'06" N, 90°23'19" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:IS 55 N over UNKNOWN RR
Structure number:1903
Old structure number:A2221R 3 (from 1992 edition)
Location:S 1916 T 40 N R 6 E
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:73.2 ft. [22.3 m]
Total length:191.9 ft. [58.5 m]
Roadway width between curbs:38.1 ft. [11.6 m]
Deck width edge-to-edge:40.7 ft. [12.4 m]
Vertical clearance below bridge:23.0 ft. [7.0 m]
Skew angle:42°
Owner:State Highway Agency [01]
Year built:1969
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:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: November 2014 

Status:Open, no restriction [A]
Average daily traffic:15,103 [as of 2014]
Truck traffic:22% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Equal to present minimum criteria [6]
Underclearances appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:69.3 tons [63.0 metric tons]
Inventory rating:41.6 tons [37.8 metric tons]
Sufficiency rating:97.3

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
November 201497.3Not deficientGoodSatisfactorySatisfactory15103
November 201297.3Not deficientGoodSatisfactorySatisfactory14319
January 201297.3Not deficientGoodSatisfactorySatisfactory14672
January 201097.3Not deficientGoodSatisfactoryGood14677
January 200897.3Not deficientGoodSatisfactoryGood14284
January 200697.4Not deficientGoodGoodGood13810
January 200497.3Not deficientGoodGoodGood15793
November 200193.3Functionally obsoleteGoodGoodGood14787
January 200090.1Functionally obsoleteGoodGoodGood11127
October 199890.1Functionally obsoleteGoodGoodGood11127
December 199790.1Functionally obsoleteGoodGoodGood11127
January 199790.3Functionally obsoleteGoodGoodGood9394
January 199692.5Functionally obsoleteGoodGoodGood9394
December 199496.5Not deficientGoodVery GoodGood9524
January 199496.5Not deficientGoodGoodGood9193
January 199396.5Not deficientGoodGoodGood9193
December 199196.5Not deficientGoodGoodVery Good9480