I 93 NB over I 93 SB BT 61 - B5


+42.37972, -71.07648
42°22'47" N, 71°04'35" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 93 NB over I 93 SB BT 61 - B5
Structure number:B162813BQDOTNBI
Location:.5 MI N OF JCT 193&US1
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:83.0 ft. [25.3 m]
Total length:486.9 ft. [148.4 m]
Roadway width between curbs:62.0 ft. [18.9 m]
Deck width edge-to-edge:68.9 ft. [21.0 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1970
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 [3]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: April 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:52,462 [as of 2017]
Truck traffic:8% of total traffic
Deck condition:Satisfactory [6 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:Superior to present desirable criteria [9]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:77.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$15,823,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2018FairSatisfactoryFairFair5246277.0
April 2016FairSatisfactoryFairFair5890076.3
April 2014FairSatisfactoryFairFair7420074.5
April 2012FairSatisfactoryFairFair5990076.2
April 2010FairSatisfactoryFairFair5990076.2
April 2008FairSatisfactoryFairFair5990076.2

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.9759540210
Steel Protective Coatingsq. ft.17,5508,7755,8502,9250
Steel Stringerlinear ft.2,9222,08184100
Steel Protective Coatingsq. ft.17,53214,7322,80000
Reinforced Concrete Decksq. ft.33,54533,00054500
Wearing Surfacessq. ft.30,19130,180605
Steel Floor Beamlinear ft.745007450
Steel Protective Coatingsq. ft.11,92005,9605,9600
Steel Columneach189810
Steel Protective Coatingsq. ft.10,08010,080000
Steel Pier Caplinear ft.621062100
Steel Protective Coatingsq. ft.11,17807,5003,6780
Open Jointlinear ft.125123200
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.9759490260
Reinforced Concrete Bridge Raillinear ft.975730226190