+38.70927, -76.65150
38°42'33" N, 76°39'05" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:MD 4 NB over HALL CREEK
Structure number:100000040018011
Location:.442 M N OF MT HARMONY RD
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:44.9 ft. [13.7 m]
Total length:122.1 ft. [37.2 m]
Roadway width between curbs:38.1 ft. [11.6 m]
Deck width edge-to-edge:40.0 ft. [12.2 m]
Owner:State Highway Agency [01]
Year built:1966
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 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:35,171 [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:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Pier/abutment protection:None present but re-evaluation suggested [5]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:96.7

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2018FairSatisfactorySatisfactorySatisfactory3517196.7
April 2016FairSatisfactorySatisfactorySatisfactory3517196.7
March 2016FairSatisfactorySatisfactorySatisfactory3517196.7
August 2013FairSatisfactorySatisfactorySatisfactory3517196.7
July 2011FairSatisfactorySatisfactorySatisfactory3517196.7
July 2009FairSatisfactorySatisfactorySatisfactory1746198.4
April 2007FairSatisfactorySatisfactorySatisfactory1813898.3
April 2005FairSatisfactorySatisfactorySatisfactory1813898.3
April 2003FairSatisfactorySatisfactorySatisfactory1813898.3
December 2001FairSatisfactorySatisfactorySatisfactory757597.3
December 1999FairSatisfactorySatisfactorySatisfactory757597.3
December 1997FairSatisfactorySatisfactorySatisfactory757597.3
December 1995FairSatisfactorySatisfactorySatisfactory757597.4
December 1993FairGoodGoodSatisfactory757597.4
September 1991FairGoodVery GoodSatisfactory757596.4

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.720720000
Steel Protective Coatingsq. ft.5,1285,00312500
Reinforced Concrete Decksq. ft.4,8802,0702,756540
Wearing Surfacessq. ft.4,6361,8422,740540
Reinforced Concrete Columneach1212000
Reinforced Concrete Abutmentlinear ft.82503200
Reinforced Concrete Pier Caplinear ft.80502370
Pourable Jointlinear ft.60050100
Assembly with Sealeach6005730
Movable Bearingeach60060
Steel Protective Coatingsq. ft.64200
Fixed Bearingeach30131160
Steel Protective Coatingsq. ft.482016120
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.24406062122
Reinforced Concrete Bridge Raillinear ft.2862602600