I 93 NB BT 33-38 over I 93 SB BT 33-38


+42.37446, -71.07159
42°22'28" N, 71°04'18" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 93 NB BT 33-38 over I 93 SB BT 33-38
Structure number:B162813DUDOTNBI
Location:.6 MI N OF JCT I93&US1
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:82.0 ft. [25.0 m]
Total length:469.5 ft. [143.1 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]
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:5
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: February 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:58,900 [as of 2016]
Truck traffic:8% of total traffic
Deck condition:Fair [5 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: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:85.7
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$15,664,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
February 2018FairFairSatisfactorySatisfactory5890085.7
February 2016FairFairSatisfactorySatisfactory5890085.7
February 2014FairFairSatisfactorySatisfactory7420084.1
February 2012FairFairSatisfactorySatisfactory7420085.6
February 2010FairSatisfactorySatisfactorySatisfactory9640084.5

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Steel Girder/Beamlinear ft.8007059050
Steel Protective Coatingsq. ft.1,2701,11915100
Steel Stringerlinear ft.3,0402,86417600
Steel Protective Coatingsq. ft.1,9901,87411600
Reinforced Concrete Decksq. ft.66,82762,8183,3416680
Wearing Surfacessq. ft.65,18758,6686,51900
Steel Floor Beamlinear ft.751561165250
Steel Protective Coatingsq. ft.1,11088822200
Steel Columneach1413100
Steel Protective Coatingsq. ft.340340000
Steel Pier Caplinear ft.5314785300
Steel Protective Coatingsq. ft.8557698600
Assembly with Sealeach1611511000
Bridge Rail
Other Material Bridge Raillinear ft.8007099010