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IS 55 S over CST GASCONADE ST

Map

Coordinates:
+38.58048, -90.22586
38°34'50" N, 90°13'33" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IS 55 S over CST GASCONADE ST
Structure number:878
Location:S 3 T 44 N R 7 E
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:69.9 ft. [21.3 m]
Total length:161.1 ft. [49.1 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:15.1 ft. [4.6 m]
Skew angle:44°
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

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:51,340 [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:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:62.4 tons [56.7 metric tons]
Inventory rating:37.6 tons [34.2 metric tons]
Sufficiency rating:75.9
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$1,151,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201575.9FairSatisfactorySatisfactorySatisfactoryFO51340
August 201375.6FairSatisfactorySatisfactorySatisfactoryFO56754
August 201173.6FairSatisfactorySatisfactorySatisfactoryFO50598
September 200973.7FairSatisfactorySatisfactorySatisfactoryFO51625
August 200773.5FairSatisfactorySatisfactorySatisfactoryFO55636
August 200573.9FairSatisfactorySatisfactorySatisfactoryFO49983
July 200373.9FairSatisfactorySatisfactorySatisfactoryFO49536
June 200172.9FairGoodGoodSatisfactoryFO48614

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Substructure
Reinforced Concrete Columneach85300
Reinforced Concrete Abutmentlinear ft.19817211150
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.3220312100
Deck
Reinforced Concrete Slabsq. ft.9,1613,7725,0373520
Wearing Surfacessq. ft.8,2457,42082500