+38.55347, -90.26587
38°33'12" N, 90°15'57" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:IS 55 S over CST KOELN AVE
Structure number:866
Old structure number:A1075R 4 (from 1992 edition)
Location:S 18 T 44 N R 7 E
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:66.9 ft. [20.4 m]
Total length:170.9 ft. [52.1 m]
Roadway width between curbs:143.1 ft. [43.6 m]
Deck width edge-to-edge:145.7 ft. [44.4 m]
Vertical clearance below bridge:17.7 ft. [5.4 m]
Skew angle:47°
Owner:State Highway Agency [01]
Year built:1963
Year reconstructed:1986
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:Concrete continuous [2]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: August 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:100,975 [as of 2015]
Truck traffic:12% of total traffic
Deck condition:Fair [5 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:Better than present minimum criteria [7]
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:68.3 tons [62.1 metric tons]
Inventory rating:40.6 tons [36.9 metric tons]
Sufficiency rating:72.9

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201572.9FairFairFairSatisfactory-100975
September 201372.5FairFairFairSatisfactory-108182
September 201175.6FairFairFairSatisfactory-43315
September 200988.2FairSatisfactorySatisfactorySatisfactory-44195
August 200786.9FairSatisfactorySatisfactorySatisfactory-70086
August 200588.0FairGoodSatisfactorySatisfactory-47893
July 200388.0FairGoodGoodSatisfactory-47466
June 200187.8FairGoodGoodSatisfactory-93424
July 200080.3FairGoodGoodSatisfactory-96339
July 199979.7FairGoodGoodSatisfactory-102072
June 199879.7FairGoodGoodSatisfactory-102072
August 199779.7FairGoodGoodSatisfactory-102072
August 199679.3FairGoodGoodSatisfactory-96000
December 199582.3FairGoodGoodSatisfactory-96000
December 199381.7GoodGoodGoodVery Good-90449
December 199282.7GoodGoodGoodVery Good-90449
November 199183.0FairGoodSatisfactoryVery Good-87306