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IS 55 N over CST POTOMAC ST

Map 

Coordinates:
+38.58832, -90.21449
38°35'18" N, 90°12'52" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:IS 55 N over CST POTOMAC ST
Structure number:881
Location:S 34 T 45 N R 7 E
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:65.3 ft. [19.9 m]
Total length:176.8 ft. [53.9 m]
Roadway width between curbs:54.1 ft. [16.5 m]
Deck width edge-to-edge:56.8 ft. [17.3 m]
Vertical clearance below bridge:19.7 ft. [6.0 m]
Skew angle:30°
Owner:State Highway Agency [01]
Year built:1965
Year reconstructed:1985
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
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:Bituminous [6]

Latest Available Inspection: August 2015 

Status:Open, no restriction [A]
Average daily traffic:51,162 [as of 2015]
Truck traffic:12% of total traffic
Deck condition:Satisfactory [6 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:Basically intolerable requiring high priority of replacement [2]
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:72.3 tons [65.7 metric tons]
Inventory rating:43.6 tons [39.6 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:73.8
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$1,246,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201573.8Functionally obsoleteSatisfactorySatisfactorySatisfactory51162
August 201373.5Functionally obsoleteSatisfactorySatisfactorySatisfactory55873
August 201174.5Functionally obsoleteSatisfactorySatisfactorySatisfactory40393
September 200974.4Functionally obsoleteSatisfactorySatisfactorySatisfactory41213
August 200773.5Functionally obsoleteSatisfactorySatisfactorySatisfactory55636
August 200574.0Functionally obsoleteSatisfactorySatisfactorySatisfactory47517
July 200374.1Functionally obsoleteSatisfactorySatisfactorySatisfactory47093
June 200175.2Functionally obsoleteSatisfactorySatisfactorySatisfactory46216