+38.70926, -76.65193
38°42'33" N, 76°39'07" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:MD 4 SB over HALL CREEK
Structure number:100000040018012
Location:.442 M N OF MT HARMONY RD
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:30.8 ft. [9.4 m]
Total length:65.0 ft. [19.8 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:1929
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:2
Main spans material:Concrete [1]
Main spans design:Tee beam [04]
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:Better than present minimum criteria [7]
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
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$172,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2018FairSatisfactorySatisfactorySatisfactory3517196.7
March 2016FairSatisfactorySatisfactorySatisfactory3517196.7
March 2014FairSatisfactorySatisfactorySatisfactory3517196.0
March 2013PoorSatisfactoryPoorFair3517167.3
December 2011PoorSatisfactoryPoorFair3517167.3
October 2010PoorSatisfactoryPoorFair3517167.3
August 2009PoorSatisfactoryPoorFair1746170.6
August 2008PoorSatisfactoryPoorFair1746170.6
August 2007PoorSatisfactoryPoorFair1813870.5
August 2006PoorSatisfactoryPoorFair1813870.5
August 2005FairSatisfactoryFairSatisfactory1813887.1
July 2004FairSatisfactoryFairSatisfactory1813887.1
April 2003FairSatisfactoryFairSatisfactory1813887.1
May 2002FairSatisfactoryFairSatisfactory757588.2
April 2001FairSatisfactoryFairSatisfactory757586.2
May 2000FairSatisfactoryFairSatisfactory757586.2
March 1999FairSatisfactoryFairSatisfactory757586.2
December 1997FairSatisfactoryFairSatisfactory757586.2
September 1996FairSatisfactoryFairSatisfactory757586.2
August 1995FairSatisfactoryFairSatisfactory757586.3
September 1994FairSatisfactoryFairSatisfactory757586.3
December 1993FairSatisfactoryFairSatisfactory757586.3
August 1992PoorFairPoorPoor757568.2
April 1991PoorSatisfactoryPoorPoor757568.2

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.250244501
Steel Protective Coatingsq. ft.1,8091,2474301248
Reinforced Concrete Girder/Beamlinear ft.434043400
Reinforced Concrete Decksq. ft.8788423600
Wearing Surfacessq. ft.7487123600
Reinforced Concrete Top Flangesq. ft.1,7235378623240
Wearing Surfacessq. ft.1,7235201,20300
Reinforced Concrete Pier Walllinear ft.4404400
Reinforced Concrete Abutmentlinear ft.9209200
Elastomeric Bearingeach1601600
Movable Bearingeach80800
Steel Protective Coatingsq. ft.30300
Fixed Bearingeach80800
Steel Protective Coatingsq. ft.30300
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.930621615
Steel Protective Coatingsq. ft.2021544800
Reinforced Concrete Bridge Raillinear ft.133013300