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IS 495 over STONEY BROOK DR, ROCK CR

Map

Coordinates:
+39.01187, -77.06346
39°00'43" N, 77°03'48" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IS 495 over STONEY BROOK DR, ROCK CR
Structure number:100000150126010
Location:0.97 MILE EAST OF MD 185
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:144.0 ft. [43.9 m]
Total length:379.0 ft. [115.5 m]
Roadway width between curbs:150.3 ft. [45.8 m]
Deck width edge-to-edge:152.6 ft. [46.5 m]
Vertical clearance below bridge:14.1 ft. [4.3 m]
Skew angle:12°
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:3
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: September 2016

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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:None present but re-evaluation suggested [5]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:49.4 tons [44.9 metric tons]
Inventory rating:23.0 tons [20.9 metric tons]
Sufficiency rating:68.3

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201668.3FairFairSatisfactorySatisfactory-239310
September 201568.3FairFairSatisfactorySatisfactory-239310
June 201372.5FairFairSatisfactorySatisfactory-239310
May 201274.2FairFairSatisfactorySatisfactory-239310
March 201174.2FairFairSatisfactorySatisfactory-239310
December 200974.2FairFairSatisfactorySatisfactory-218850
September 200874.2FairFairSatisfactorySatisfactory-218850
September 200774.2FairFairSatisfactorySatisfactory-241075
September 200674.2FairFairSatisfactorySatisfactory-241075
September 200574.2FairFairSatisfactorySatisfactory-241075
September 200474.2FairFairSatisfactorySatisfactory-241075
September 200370.2FairFairSatisfactorySatisfactoryFO241075
August 200270.2FairFairSatisfactorySatisfactoryFO243975
August 200171.2FairSatisfactorySatisfactorySatisfactoryFO243975
August 200071.2FairSatisfactorySatisfactorySatisfactoryFO243975
July 199971.2FairSatisfactorySatisfactorySatisfactoryFO243975
July 199771.2FairSatisfactorySatisfactorySatisfactory-243975
June 199571.2FairSatisfactorySatisfactorySatisfactory-153000
March 199382.0FairSatisfactorySatisfactorySatisfactory-153000
March 199186.5FairSatisfactoryGoodGood-153000

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.7,5805986,98200
Steel Protective Coatingsq. ft.119,21253,64659,6065,9600
Deck
Reinforced Concrete Decksq. ft.57,81257,812000
Wearing Surfacessq. ft.55,856055,85600
Substructure
Reinforced Concrete Columneach2424000
Reinforced Concrete Abutmentlinear ft.3253022300
Reinforced Concrete Pier Caplinear ft.2712571400
Joints
Compression Jointlinear ft.108812700
Assembly with Sealeach2171972000
Bearings
Movable Bearingeach60402000
Steel Protective Coatingsq. ft.8117308100
Fixed Bearingeach2020000
Steel Protective Coatingsq. ft.274274000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.374003740
Steel Protective Coatingsq. ft.80003005000
Reinforced Concrete Bridge Raillinear ft.7680742260