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 

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. ratingEvaluationDeckSuper.Sub.ADT
December 201584.5Not deficientFairSatisfactorySatisfactory382
September 201484.7Not deficientFairSatisfactorySatisfactory190
November 201284.7Not deficientFairSatisfactorySatisfactory196
January 201284.7Not deficientFairSatisfactorySatisfactory196
January 201079.9Not deficientFairSatisfactorySatisfactory206
January 200877.8Not deficientFairSatisfactorySatisfactory196
January 200667.4Not deficientFairSatisfactorySatisfactory1052
January 200468.4Not deficientSatisfactoryGoodSatisfactory1030
November 200169.4Not deficientSatisfactoryGoodSatisfactory1050