MD 355 NB over IS 495 OL


+39.01768, -77.10105
39°01'04" N, 77°06'04" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:MD 355 NB over IS 495 OL
Structure number:100000150119010
Location:0.07 MILE NORTH OF IS 495
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:122.1 ft. [37.2 m]
Total length:264.1 ft. [80.5 m]
Roadway width between curbs:36.7 ft. [11.2 m]
Deck width edge-to-edge:44.6 ft. [13.6 m]
Vertical clearance below bridge:17.1 ft. [5.2 m]
Skew angle:58°
Owner:State Highway Agency [01]
Year built:1958
Year reconstructed:2008
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]
Wearing surface:Bituminous [6]

Latest Available Inspection: March 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:55,020 [as of 2009]
Truck traffic:8% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Basically intolerable requiring high priority of replacement [2]
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:36.0 tons [32.7 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
Sufficiency rating:62.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$1,558,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
March 201562.0GoodGoodGoodGood-55020
November 201262.0GoodGoodGoodGood-55020
August 201062.0GoodGoodGoodGood-55020
August 200862.0GoodGoodGoodGood-29130
February 200759.0PoorPoorSatisfactorySatisfactorySD28813
February 200559.0PoorPoorSatisfactorySatisfactorySD28813
December 200259.0PoorPoorSatisfactorySatisfactorySD64025
November 200059.0PoorPoorSatisfactorySatisfactorySD64025
October 199859.0PoorPoorSatisfactorySatisfactorySD64025
October 199648.0PoorPoorSatisfactoryFairSD64025
September 199448.0PoorPoorSatisfactoryFairSD64025
September 199248.0PoorPoorSatisfactoryFairSD64025
November 199050.0FairFairSatisfactoryFairFO63400

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.3,2523,252000
Steel Protective Coatingsq. ft.18,11918,119000
Reinforced Concrete Decksq. ft.13,56513,565000
Wearing Surfacessq. ft.10,71510,715000
Reinforced Concrete Columneach135800
Reinforced Concrete Abutmentlinear ft.168016800
Reinforced Concrete Pier Caplinear ft.2262062000
Compression Jointlinear ft.9008910
Movable Bearingeach1313000
Steel Protective Coatingsq. ft.5454000
Fixed Bearingeach1313000
Steel Protective Coatingsq. ft.6767000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.581581000