MD 174 over AMTRAK


+39.13448, -76.69731
39°08'04" N, 76°41'50" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:MD 174 over AMTRAK
Structure number:100000020075010
Location:0.71 MILE SOUTH OF MD 170
Purpose:Carries highway over railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:75.1 ft. [22.9 m]
Total length:79.1 ft. [24.1 m]
Roadway width between curbs:26.9 ft. [8.2 m]
Deck width edge-to-edge:30.8 ft. [9.4 m]
Vertical clearance below bridge:19.7 ft. [6.0 m]
Owner:State Highway Agency [01]
Year built:1931
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:M 18 / H 20 [4]
Main span material:Steel [3]
Main span design:Girder and floorbeam system [03]
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:18,270 [as of 2017]
Truck traffic:8% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 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:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:60.1
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$162,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2017FairFairFairFair1827060.1
November 2015FairFairFairFair1714260.6
August 2013FairFairFairFair1697060.6
February 2012FairFairFairFair1697060.6
March 2011FairFairFairFair1697060.6
February 2009FairFairFairFair1781060.3
December 2006FairFairFairFair1672558.7
November 2005FairFairFairFair1672558.7
November 2004FairFairFairFair1672558.7
December 2003FairFairFairFair1672558.7
December 2002FairSatisfactoryFairFair1947558.8
November 2001FairSatisfactoryFairFair1947558.8
April 2000FairSatisfactoryFairFair1947558.8
April 1998FairSatisfactoryFairFair1947558.8
May 1997FairSatisfactoryFairFair1947558.8
May 1995FairSatisfactoryFairFair2110058.5
May 1993FairSatisfactoryFairFair2110055.2
April 1991FairFairFairFair930061.5
March 1990FairFairFairFair930061.5