MD 355 SB over IS 495 IL


+39.01667, -77.10050
39°01'00" N, 77°06'02" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:MD 355 SB over IS 495 IL
Structure number:100000150120010
Location:1.31 MILES S OF MD 547
Purpose:Carries highway over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:138.1 ft. [42.1 m]
Total length:294.0 ft. [89.6 m]
Roadway width between curbs:47.9 ft. [14.6 m]
Deck width edge-to-edge:53.8 ft. [16.4 m]
Vertical clearance below bridge:14.1 ft. [4.3 m]
Skew angle:62°
Owner:State Highway Agency [01]
Year built:1960
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: November 2015

Good/Fair/Poor Condition:Fair
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: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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:36.4 tons [33.1 metric tons]
Inventory rating:22.0 tons [20.0 metric tons]
Sufficiency rating:64.8
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$1,042,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201564.8FairGoodSatisfactorySatisfactoryFO55020
October 201380.0FairGoodSatisfactorySatisfactoryFO55020
August 201180.0FairGoodSatisfactorySatisfactoryFO55020
May 200981.2FairGoodSatisfactorySatisfactoryFO34665
February 200782.4FairGoodSatisfactorySatisfactoryFO31663
February 200582.4FairGoodSatisfactorySatisfactoryFO31663
December 200280.0FairGoodSatisfactorySatisfactoryFO58775
November 200080.0FairVery GoodSatisfactorySatisfactoryFO58775
February 199978.0FairVery GoodSatisfactorySatisfactoryFO58775
February 199764.0PoorPoorSatisfactoryFairSD58775
November 199465.0PoorPoorSatisfactoryFairSD58775
October 199265.0PoorPoorSatisfactoryFairSD58775
December 199080.0FairFairSatisfactorySatisfactoryFO58800

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.2,6281,0281,60000
Steel Protective Coatingsq. ft.32,86032,36050000
Reinforced Concrete Decksq. ft.15,78815,783500
Reinforced Concrete Columneach1801710
Reinforced Concrete Abutmentlinear ft.2592035600
Reinforced Concrete Pier Caplinear ft.2542292500
Compression Jointlinear ft.2632511020
Movable Bearingeach180990
Steel Protective Coatingsq. ft.4533660
Fixed Bearingeach1801800
Steel Protective Coatingsq. ft.3631500
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.664663100