IS 495 over MD 185


+39.00538, -77.07809
39°00'19" N, 77°04'41" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IS 495 over MD 185
Structure number:100000150123010
Location:1.53 MILES WEST OF MD 355
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:66.9 ft. [20.4 m]
Total length:226.1 ft. [68.9 m]
Roadway width between curbs:170.0 ft. [51.8 m]
Deck width edge-to-edge:173.2 ft. [52.8 m]
Vertical clearance below bridge:18.0 ft. [5.5 m]
Skew angle:16°
Owner:State Highway Agency [01]
Year built:1964
Year reconstructed:1990
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:4
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: November 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:239,310 [as of 2009]
Truck traffic:8% 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:Superior to present desirable criteria [9]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge not over waterway. [N]
Operating rating:92.3 tons [83.9 metric tons]
Inventory rating:55.3 tons [50.3 metric tons]
Sufficiency rating:80.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201580.0FairFairSatisfactorySatisfactoryFO239310
October 201369.0FairFairSatisfactoryFairFO239310
September 201169.0FairFairSatisfactoryFairFO239310
October 200980.0FairFairSatisfactorySatisfactoryFO218850
May 200880.0FairFairSatisfactorySatisfactoryFO218850
May 200681.0FairSatisfactorySatisfactorySatisfactoryFO241075
May 200481.0FairSatisfactorySatisfactorySatisfactoryFO241075
May 200281.0FairSatisfactorySatisfactorySatisfactoryFO243975
May 200081.0FairSatisfactorySatisfactorySatisfactoryFO243975
May 199881.0FairSatisfactorySatisfactorySatisfactoryFO243975
March 199682.0GoodGoodGoodGood-153000
March 199482.0FairSatisfactorySatisfactorySatisfactory-153000
March 199282.0FairSatisfactoryGoodSatisfactory-153000
June 199082.0FairSatisfactoryGoodSatisfactory-153000

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.6,3005,1481,15200
Steel Protective Coatingsq. ft.49,6823,00044,1982,4840
Reinforced Concrete Decksq. ft.39,14438,6443002000
Wearing Surfacessq. ft.38,420037,2681,1520
Reinforced Concrete Columneach4241100
Reinforced Concrete Abutmentlinear ft.3353102050
Reinforced Concrete Pier Caplinear ft.51031020000
Pourable Jointlinear ft.677000677
Compression Jointlinear ft.216021150
Movable Bearingeach112011200
Steel Protective Coatingsq. ft.2260146800
Fixed Bearingeach112011200
Steel Protective Coatingsq. ft.2380163750
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.450448020