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I 93 /US1/ST3 over COMB MBTA & RED LN SSH

Map

Coordinates:
+42.28972, -71.04389
42°17'23" N, 71°02'38" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 93 /US1/ST3 over COMB MBTA & RED LN SSH
Structure number:B162653D6DOTNBI
Location:6.8 KM S OF JCT I90&I93
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:107.0 ft. [32.6 m]
Total length:199.2 ft. [60.7 m]
Roadway width between curbs:121.7 ft. [37.1 m]
Deck width edge-to-edge:127.6 ft. [38.9 m]
Vertical clearance below bridge:18.7 ft. [5.7 m]
Skew angle:62°
Owner:State Highway Agency [01]
Year built:1957
Year reconstructed:1984
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:2
Main spans material:Steel continuous [4]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: November 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:183,180 [as of 2014]
Truck traffic:10% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Good [7 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:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:64.2 tons [58.4 metric tons]
Inventory rating:38.5 tons [35.0 metric tons]
Sufficiency rating:69.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$13,376,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201569.0FairFairGoodFairFO183180
November 201369.0FairFairGoodFairFO211000
November 201169.0FairFairGoodFairFO210000
November 200969.0FairFairGoodFairFO205000

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.1,5291205858240
Steel Protective Coatingsq. ft.31,60219,84910,1081,6450
Deck
Reinforced Concrete Decksq. ft.80,72966,00513,7241,0000
Wearing Surfacessq. ft.80,72980,729000
Superstructure
Steel Floor Beamlinear ft.2,6281,1561,47200
Steel Protective Coatingsq. ft.19,97215,5724,40000
Substructure
Reinforced Concrete Pier Walllinear ft.5650600
Reinforced Concrete Abutmentlinear ft.5611303311000
Joints
Strip Seal Jointlinear ft.55103711800
Bearings
Movable Bearingeach1801404
Steel Protective Coatingsq. ft.72056016
Fixed Bearingeach20200
Steel Protective Coatingsq. ft.80800
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.24819830200