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I 93 SB BT 46-57 over TR ORANGE LINE

Map

Coordinates:
+42.37778, -71.07583
42°22'40" N, 71°04'33" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 93 SB BT 46-57 over TR ORANGE LINE
Structure number:B162813BTDOTNBI
Location:.5 MI N OF JCT I93&US1
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:82.0 ft. [25.0 m]
Total length:898.0 ft. [273.7 m]
Roadway width between curbs:57.7 ft. [17.6 m]
Deck width edge-to-edge:69.9 ft. [21.3 m]
Vertical clearance above deck:16.4 ft. [5.0 m]
Vertical clearance below bridge:32.2 ft. [9.8 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+Mod / HS 20+Mod [6]
Number of main spans:11
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: November 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:72,100 [as of 2010]
Truck traffic:6% 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Operating rating:60.2 tons [54.7 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
Sufficiency rating:78.1
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$31,391,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201678.1FairSatisfactoryFairFair-72100
November 201478.1FairSatisfactoryFairFair-72100
November 201278.1FairSatisfactoryFairFair-72100
May 201078.5FairSatisfactorySatisfactoryFair-68700
April 200878.5FairSatisfactorySatisfactoryFair-68700

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.1,7711,143539890
Steel Protective Coatingsq. ft.1,9981,998000
Steel Stringerlinear ft.7,6777,677000
Steel Protective Coatingsq. ft.1,9981,998000
Deck
Reinforced Concrete Decksq. ft.76,19972,3893,81000
Wearing Surfacessq. ft.71,68868,1043,58400
Superstructure
Steel Floor Beamlinear ft.1,6081,608000
Steel Protective Coatingsq. ft.999999000
Substructure
Steel Columneach3030000
Steel Protective Coatingsq. ft.1,9981,998000
Steel Pier Caplinear ft.1,230571,079940
Steel Protective Coatingsq. ft.1,9981,998000
Joints
Open Jointlinear ft.312312000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,8041,7680360