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I 93 NB over I 93 SB BT 61 - B5

Map

Coordinates:
+42.37972, -71.07639
42°22'47" N, 71°04'35" W

Facts

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:14.8 ft. [4.5 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 2016

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: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]
Operating rating:59.2 tons [53.8 metric tons]
Inventory rating:35.4 tons [32.2 metric tons]
Sufficiency rating:76.3
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$16,799,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
April 201676.3FairSatisfactoryFairFairFO58900
April 201474.5FairSatisfactoryFairFairFO74200
April 201276.2FairSatisfactoryFairFairFO59900
April 201076.2FairSatisfactoryFairFairFO59900
April 200876.2FairSatisfactoryFairFairFO59900

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.97477119940
Steel Protective Coatingsq. ft.1,9981,998000
Steel Stringerlinear ft.2,9202,04487600
Steel Protective Coatingsq. ft.1,9981,998000
Deck
Reinforced Concrete Decksq. ft.31,16729,4921,67500
Wearing Surfacessq. ft.30,19328,6831,51000
Superstructure
Steel Floor Beamlinear ft.604182362600
Steel Protective Coatingsq. ft.999999000
Substructure
Steel Columneach2422200
Steel Protective Coatingsq. ft.1,9981,998000
Reinforced Concrete Columneach1613210
Steel Pier Caplinear ft.35111323350
Steel Protective Coatingsq. ft.1,9981,998000
Joints
Open Jointlinear ft.102102000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.974048739097
Reinforced Concrete Bridge Raillinear ft.97473024400