RT TT S over IS 55


+38.09000, -90.37000
38°05'24" N, 90°22'12" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:RT TT S over IS 55
Structure number:1671
Location:S 2078 T 39 N R 7 E
Purpose:Carries highway over highway
Route classification:Major Collector (Rural) [07]
Length of largest span:86.0 ft. [26.2 m]
Total length:237.5 ft. [72.4 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:30.8 ft. [9.4 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Owner:State Highway Agency [01]
Year built:1970
Year reconstructed:1984
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 13.5 / H 15 [2]
Number of main spans:4
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: December 2015 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:382 [as of 2015]
Truck traffic:11% of total traffic
Deck condition:Fair [5 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Operating rating:37.6 tons [34.2 metric tons]
Inventory rating:22.8 tons [20.7 metric tons]
Sufficiency rating:84.5

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
December 201584.5FairFairSatisfactorySatisfactory-382
September 201484.7FairFairSatisfactorySatisfactory-190
November 201284.7FairFairSatisfactorySatisfactory-196
January 201284.7FairFairSatisfactorySatisfactory-196
January 201079.9FairFairSatisfactorySatisfactory-206
January 200877.8FairFairSatisfactorySatisfactory-196
January 200667.4FairFairSatisfactorySatisfactory-1052
January 200468.4FairSatisfactoryGoodSatisfactory-1030
November 200169.4FairSatisfactoryGoodSatisfactory-1050