9TH ST BRIDGE over I-395


+38.88288, -77.02397
38°52'58" N, 77°01'26" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:9TH ST BRIDGE over I-395
Structure number:1107
Location:9TH ST SW OVER I-395
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Collector (Urban) [17]
Length of largest span:85.0 ft. [25.9 m]
Total length:288.1 ft. [87.8 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:36.4 ft. [11.1 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Owner:State Highway Agency [01]
Year built:1961
Year reconstructed:2009
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: March 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:8,900 [as of 2007]
Truck traffic:3% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:75.9
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$3,250,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2018GoodGoodGoodGood890075.9
March 2016GoodGoodGoodGood890075.9
March 2014GoodGoodGoodGood890075.9
March 2012GoodGoodGoodGood890073.9
March 2010GoodGoodGoodGood890073.9
March 2007PoorPoorFairFair890059.5
February 2005FairFairFairSatisfactory980061.4
March 2003FairFairFairSatisfactory980061.4
January 2001FairFairFairGood980061.4
January 1999FairSatisfactoryFairGood980062.5
October 1996FairSatisfactoryFairGood980062.5
December 1993FairSatisfactoryFairGood980062.8

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,4321,422820
Steel Protective Coatingsq. ft.14,88514,8210586
Reinforced Concrete Girder/Beamlinear ft.100100000
Reinforced Concrete Decksq. ft.10,46010,3966400
Wearing Surfacessq. ft.10,46010,460000
Reinforced Concrete Floor Beamlinear ft.105105000
Reinforced Concrete Pier Walllinear ft.1026524130
Reinforced Concrete Abutmentlinear ft.693219180
Concrete Protective Coatingsq. ft.345345000
Pourable Jointlinear ft.21882126010
Elastomeric Bearingeach3534010
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.576575100
Steel Protective Coatingsq. ft.2,2562,256000
Reinforced Concrete Bridge Raillinear ft.4503609000