M Street, N.W. over D.C. Convention Center

Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:M Street, N.W. over D.C. Convention Center
Structure number:0251
Location:M Street, N.W.
Route classification:Collector (Urban) [17]
Total length:386.2 ft. [117.7 m]
Roadway width between curbs:62.0 ft. [18.9 m]
Deck width edge-to-edge:63.0 ft. [19.2 m]
Vertical clearance above deck:25.9 ft. [7.9 m]
Vertical clearance below bridge:15.1 ft. [4.6 m]
Owner:State Highway Agency [01]
Year built:2005
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:6
Main spans material:Steel continuous [4]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]

Latest Available Inspection: March 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:8,500 [as of 2008]
Truck traffic:1% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:77.9 tons [70.8 metric tons]
Inventory rating:45.9 tons [41.7 metric tons]
Sufficiency rating:80.5

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
March 201580.5FairSatisfactoryGoodSatisfactoryFO8500
March 201380.5FairSatisfactoryGoodSatisfactory-8500
March 201180.5FairGoodGoodSatisfactory-8500
February 200992.5GoodGoodGoodGood--
January 200737.5GoodVery GoodExcellentExcellent--
November 200537.5GoodExcellentExcellentExcellent--