MD 355 SB over IS 495 IL


+39.01739, -77.10206
39°01'03" N, 77°06'07" 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:13.1 ft. [4.0 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 2017

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]
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

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2017FairGoodSatisfactorySatisfactory5502064.8
November 2015FairGoodSatisfactorySatisfactory5502064.8
October 2013FairGoodSatisfactorySatisfactory5502080.0
August 2011FairGoodSatisfactorySatisfactory5502080.0
May 2009FairGoodSatisfactorySatisfactory3466581.2
February 2007FairGoodSatisfactorySatisfactory3166382.4
February 2005FairGoodSatisfactorySatisfactory3166382.4
December 2002FairGoodSatisfactorySatisfactory5877580.0
November 2000FairVery GoodSatisfactorySatisfactory5877580.0
February 1999FairVery GoodSatisfactorySatisfactory5877578.0
February 1997PoorPoorSatisfactoryFair5877564.0
November 1994PoorPoorSatisfactoryFair5877565.0
October 1992PoorPoorSatisfactoryFair5877565.0
December 1990FairFairSatisfactorySatisfactory5880080.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Steel Girder/Beamlinear ft.2,6282,52810000
Steel Protective Coatingsq. ft.32,86032,31055000
Reinforced Concrete Decksq. ft.15,78815,782600
Reinforced Concrete Columneach1801260
Reinforced Concrete Abutmentlinear ft.2592035600
Reinforced Concrete Pier Caplinear ft.2542242550
Compression Jointlinear ft.2632511020
Movable Bearingeach1801800
Steel Protective Coatingsq. ft.4533660
Fixed Bearingeach1818000
Steel Protective Coatingsq. ft.3631500
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.6646531010