US 61 S over IS 55


+38.19199, -90.39575
38°11'31" N, 90°23'45" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:US 61 S over IS 55
Structure number:1481
Old structure number:A1781R 1 (from 1992 edition)
Location:S 1906 T 40 N R 6 E
Purpose:Carries highway over highway
Route classification:Collector (Urban) [17]
Length of largest span:121.1 ft. [36.9 m]
Total length:367.1 ft. [111.9 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:42.7 ft. [13.0 m]
Vertical clearance below bridge:17.4 ft. [5.3 m]
Skew angle:53°
Owner:State Highway Agency [01]
Year built:1969
Year reconstructed:1984
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: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:Other [9]

Latest Available Inspection: November 2014 

Status:Posted for load [P]
Average daily traffic:5,375 [as of 2014]
Truck traffic:10% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:45.5 tons [41.4 metric tons]
Inventory rating:26.7 tons [24.3 metric tons]
Sufficiency rating:86.4

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
November 201486.4Not deficientFairGoodSatisfactory5375
November 201286.2Not deficientFairGoodSatisfactory5629
January 201282.4Not deficientFairGoodSatisfactory4986
January 201080.7Not deficientFairSatisfactorySatisfactory7172
January 200877.7Not deficientFairSatisfactorySatisfactory10412
January 200672.7Not deficientFairSatisfactoryGood18434
January 200470.4Not deficientFairGoodGood22249
November 200172.8Not deficientSatisfactoryGoodGood21834
January 200173.3Not deficientSatisfactoryGoodGood19853
200062.3Not applicable---17260
October 199873.4Not deficientSatisfactoryGoodGood19579
December 199773.4Not deficientGoodGoodGood19579
January 199774.9Not deficientGoodGoodGood17260
January 199675.7Not deficientGoodGoodGood17260
December 199476.9Not deficientGoodVery GoodVery Good15227
January 199485.2Not deficientGoodGoodVery Good3650
January 199385.2Not deficientGoodGoodVery Good3650
199241.2Structurally deficient---6100