IS 64 W over IS 64, CST 4TH ST, CST B


+38.62341, -90.20133
38°37'24" N, 90°12'05" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IS 64 W over IS 64, CST 4TH ST, CST B
Structure number:1246
Location:S 23 T 45 N R 7 E
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:254.6 ft. [77.6 m]
Total length:7847.5 ft. [2391.8 m]
Roadway width between curbs:28.9 ft. [8.8 m]
Deck width edge-to-edge:33.8 ft. [10.3 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1964
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:6
Main spans material:Steel continuous [4]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: June 2018

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:52,722 [as of 2018]
Truck traffic:18% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Basically intolerable requiring high priority of replacement [2]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:21.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$131,628,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2018PoorPoorPoorSatisfactory5272221.0
June 2016PoorPoorPoorSatisfactory5266521.0
July 2014PoorFairPoorSatisfactory4304726.0
July 2012FairFairFairSatisfactory4081342.0
August 2011PoorPoorFairSatisfactory4081317.3
August 2010PoorPoorFairSatisfactory4122517.8
August 2009PoorPoorPoorSatisfactory416415.0
July 2008PoorPoorSeriousSatisfactory412165.0
July 2007PoorPoorSeriousSatisfactory410625.0
August 2006FairFairSatisfactorySatisfactory4106229.8
July 2005PoorPoorSatisfactorySatisfactory4102127.8
November 2004PoorPoorSatisfactorySatisfactory5061027.8
August 2003FairFairSatisfactorySatisfactory5055929.8
October 2001FairFairSatisfactorySatisfactory3989826.8

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.39,89737,1422,731222
Steel Protective Coatingsq. ft.531,011510,62218,1792,16050
Steel Stringerlinear ft.4,9974,997000
Steel Protective Coatingsq. ft.32,60232,602000
Reinforced Concrete Decksq. ft.389,085269,61192,31427,1600
Wearing Surfacessq. ft.316,413253,13063,28300
Steel Floor Beamlinear ft.2,7192,55316600
Steel Protective Coatingsq. ft.36,29636,006200090
Reinforced Concrete Columneach1661353010
Reinforced Concrete Pier Walllinear ft.6969000
Reinforced Concrete Abutmentlinear ft.1858010500
Steel Pier Caplinear ft.2,7671,797935350
Steel Protective Coatingsq. ft.55,16452,5482,4002160
Reinforced Concrete Pier Caplinear ft.1,3371,14918530
Concrete Protective Coatingsq. ft.1,81801,5242940
Strip Seal Jointlinear ft.4582443400
Compression Jointlinear ft.102010200
Open Jointlinear ft.5285047800
Assembly without Seal Jointlinear ft.1524111100
Elastomeric Bearingeach1461301600
Movable Bearingeach1451261540
Steel Protective Coatingsq. ft.145139420
Fixed Bearingeach4444000
Steel Protective Coatingsq. ft.4444000
Pot Bearingeach7672400
Steel Protective Coatingsq. ft.7672220
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.15,69413,4941,4157850