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I 93 /US1/ST3 over COMB MBTA & COLUMBIA RD

Map

Coordinates:
+42.32111, -71.05389
42°19'16" N, 71°03'14" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 93 /US1/ST3 over COMB MBTA & COLUMBIA RD
Structure number:B162593ECDOTNBI
Old structure number:3EC093896159101 (from 1992 edition)
Location:2 MI S OF JCT I90
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:84.0 ft. [25.6 m]
Total length:1530.9 ft. [466.6 m]
Roadway width between curbs:104.0 ft. [31.7 m]
Deck width edge-to-edge:111.2 ft. [33.9 m]
Vertical clearance above deck:18.4 ft. [5.6 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1958
Year reconstructed:1984
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:23
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: October 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:208,707 [as of 2015]
Truck traffic:10% 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:Meets minimum tolerable limits to be left in place as is [4]
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:55.2 tons [50.2 metric tons]
Inventory rating:37.4 tons [34.0 metric tons]
Sufficiency rating:68.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$84,992,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
October 201668.0FairSatisfactoryFairFairFO208707
October 201468.0FairSatisfactorySatisfactoryFairFO184000
October 201268.0FairSatisfactorySatisfactoryFairFO184000
July 201068.0FairSatisfactorySatisfactoryFairFO184000
May 200868.0FairSatisfactoryGoodFairFO184000
March 200079.0FairSatisfactoryGoodSatisfactoryFO177111
March 199879.0FairSatisfactoryGoodSatisfactoryFO177111
March 199668.5FairSatisfactoryGoodSatisfactoryFO177111

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.23,750023,75000
Steel Protective Coatingsq. ft.1,9981,998000
Deck
Reinforced Concrete Decksq. ft.522,351496,23326,11800
Wearing Surfacessq. ft.522,351496,23326,11800
Substructure
Steel Columneach120001200
Steel Protective Coatingsq. ft.999999000
Steel Pier Caplinear ft.2,444002,4440
Steel Protective Coatingsq. ft.999999000
Joints
Strip Seal Jointlinear ft.964096400
Bearings
Movable Bearingeach269026900
Steel Protective Coatingsq. ft.999999000
Fixed Bearingeach471047100
Steel Protective Coatingsq. ft.999999000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.10,046010,04600