US 13 SB over MD 350


+38.35753, -75.54006
38°21'27" N, 75°32'24" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 13 SB over MD 350
Structure number:100000220024012
Location:0.87 MILE S OF US 50BU
Purpose:Carries highway over highway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:76.1 ft. [23.2 m]
Total length:143.1 ft. [43.6 m]
Roadway width between curbs:39.4 ft. [12.0 m]
Deck width edge-to-edge:43.0 ft. [13.1 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1974
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: February 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:24,770 [as of 2009]
Truck traffic:8% of total traffic
Deck condition:Satisfactory [6 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:Equal to present minimum criteria [6]
Underclearances appraisal:Better than present minimum criteria [7]
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:84.3

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
February 2018FairSatisfactoryFairSatisfactory2477084.3
March 2016FairSatisfactoryFairSatisfactory2477084.3
March 2014FairSatisfactoryFairSatisfactory2477080.2
March 2012FairSatisfactoryFairSatisfactory2477084.3
March 2010FairSatisfactoryFairSatisfactory2477084.3
March 2008FairSatisfactoryFairSatisfactory1341585.6
March 2006FairSatisfactorySatisfactorySatisfactory946397.1
March 2004FairSatisfactoryGoodSatisfactory946399.1
March 2002FairSatisfactoryGoodSatisfactory330099.7
September 2000FairSatisfactoryGoodSatisfactory330099.7
September 1998FairSatisfactoryGoodSatisfactory330099.7
September 1996FairSatisfactoryGoodSatisfactory330099.7
September 1994FairSatisfactoryGoodSatisfactory330099.8
September 1992FairGoodSatisfactoryGood330099.8
September 1990FairGoodSatisfactoryGood330098.7

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Steel Girder/Beamlinear ft.43832011800
Steel Protective Coatingsq. ft.4,0717282,4788650
Reinforced Concrete Girder/Beamlinear ft.2561688800
Reinforced Concrete Decksq. ft.3,1395241,4871,1280
Reinforced Concrete Top Flangesq. ft.3,010322,4785000
Reinforced Concrete Columneach86200
Reinforced Concrete Abutmentlinear ft.86404600
Reinforced Concrete Pier Caplinear ft.8680330
Compression Jointlinear ft.79255400
Movable Bearingeach64200
Steel Protective Coatingsq. ft.103430
Fixed Bearingeach66000
Steel Protective Coatingsq. ft.103250
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.266266000
Reinforced Concrete Bridge Raillinear ft.2802305000