US 29 over MD 650


+39.04317, -76.99213
39°02'35" N, 76°59'32" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 29 over MD 650
Structure number:100000150067010
Location:0.35 M S OF STEWART LANE
Purpose:Carries highway over highway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:60.0 ft. [18.3 m]
Total length:205.1 ft. [62.5 m]
Roadway width between curbs:94.2 ft. [28.7 m]
Deck width edge-to-edge:97.1 ft. [29.6 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:29°
Owner:State Highway Agency [01]
Year built:1957
Year reconstructed:1984
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:4
Main spans material:Steel [3]
Main spans 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: June 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:61,922 [as of 2009]
Truck traffic:8% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Fair [5 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 desirable criteria [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:76.7

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2017FairSatisfactorySatisfactoryFair6192276.7
July 2015FairSatisfactorySatisfactoryFair6192276.7
July 2013FairSatisfactorySatisfactoryFair6192276.7
June 2011FairSatisfactorySatisfactoryFair6192276.7
June 2009FairSatisfactorySatisfactoryFair5757277.4
June 2007FairSatisfactorySatisfactorySatisfactory5995089.4
August 2005FairSatisfactorySatisfactorySatisfactory5995089.4
August 2003FairGoodSatisfactorySatisfactory5995087.2
August 2001FairGoodSatisfactorySatisfactory5445086.0
August 1999FairGoodSatisfactorySatisfactory5445086.0
August 1997FairGoodSatisfactorySatisfactory5445086.0
August 1995FairGoodGoodSatisfactory4765086.5
August 1993FairGoodGoodSatisfactory4765086.5
August 1991FairGoodSatisfactorySatisfactory4765086.5

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Steel Girder/Beamlinear ft.3,2953,2494510
Steel Protective Coatingsq. ft.33,19333,1138000
Reinforced Concrete Decksq. ft.19,90619,8852010
Reinforced Concrete Columneach1881000
Reinforced Concrete Abutmentlinear ft.2270217100
Reinforced Concrete Pier Caplinear ft.3339523800
Compression Jointlinear ft.7737581050
Movable Bearingeach6463100
Steel Protective Coatingsq. ft.1569232320
Fixed Bearingeach6460400
Steel Protective Coatingsq. ft.64520120
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.41129797170