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NORTHERN PKWY RAMP over I-83

Map

Coordinates:
+39.36065, -76.65020
39°21'38" N, 76°39'01" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:NORTHERN PKWY RAMP over I-83
Structure number:200000BC3123010
Location:WB RAMP FROM N PKWY
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:94.2 ft. [28.7 m]
Total length:195.9 ft. [59.7 m]
Roadway width between curbs:24.9 ft. [7.6 m]
Deck width edge-to-edge:27.9 ft. [8.5 m]
Vertical clearance below bridge:14.1 ft. [4.3 m]
Skew angle:33°
Owner:City or Municipal Highway Agency [04]
Year built:1959
Year reconstructed:1987
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:3
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: November 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:5,350 [as of 2014]
Truck traffic:8% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Fair [5 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:Better than present minimum criteria [7]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Operating rating:38.0 tons [34.5 metric tons]
Inventory rating:38.0 tons [34.5 metric tons]
Sufficiency rating:84.4
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$124,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201684.4FairGoodFairSatisfactory-5350
November 201482.4FairGoodFairSatisfactoryFO5350
December 201282.4FairGoodFairSatisfactoryFO5350
December 201082.4FairGoodFairFairFO5350
December 200982.4FairGoodFairFairFO5350
December 200782.4FairGoodFairFairFO5350
November 200582.4FairGoodFairFairFO5100
October 200382.4FairGoodFairFairFO5100
January 200282.5FairGoodFairFairFO4344
February 200082.5FairGoodFairFairFO4344
February 199882.5FairGoodFairFairFO4344
June 199582.6FairGoodFairFair-4344
December 199280.7FairGoodFairFair-25727
November 199077.1GoodGoodGoodGood-25727

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.78460118030
Steel Protective Coatingsq. ft.8,4003,3002,3702,200530
Deck
Reinforced Concrete Decksq. ft.5,3205,07025000
Substructure
Reinforced Concrete Columneach43100
Reinforced Concrete Abutmentlinear ft.85156280
Reinforced Concrete Pier Caplinear ft.70581200
Joints
Strip Seal Jointlinear ft.1451103500
Compression Jointlinear ft.2828000
Bearings
Movable Bearingeach1301120
Steel Protective Coatingsq. ft.3609225
Fixed Bearingeach1401310
Steel Protective Coatingsq. ft.3609225
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.392392000