Share:

I 93 SB over COMB RAMP LT& MILLERS R

Map

Coordinates:
+42.37028, -71.06500
42°22'13" N, 71°03'54" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 93 SB over COMB RAMP LT& MILLERS R
Structure number:B166018YXDOTNBI
Location:I93/US INTERCHANGE
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:143.1 ft. [43.6 m]
Total length:714.6 ft. [217.8 m]
Roadway width between curbs:63.0 ft. [19.2 m]
Deck width edge-to-edge:66.9 ft. [20.4 m]
Vertical clearance above deck:17.7 ft. [5.4 m]
Vertical clearance below bridge:47.2 ft. [14.4 m]
Owner:State Highway Agency [01]
Year built:2002
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 22.5 / HS 25 [9]
Number of main spans:5
Main spans material:Prestressed concrete continuous [6]
Main spans design:Segmental box girder [21]
Deck type:Other [9]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: March 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:145,500 [as of 2014]
Truck traffic:8% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
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:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:83.4 tons [75.8 metric tons]
Inventory rating:48.1 tons [43.7 metric tons]
Sufficiency rating:79.0
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$18,544,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
March 201679.0FairGoodSatisfactoryGoodFO145500
March 201479.0FairGoodSatisfactoryGoodFO145500
March 201283.9FairGoodSatisfactoryGoodFO40000
March 201083.9FairGoodSatisfactoryGood-40000
January 200820.0GoodGoodGoodGood-174630

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Prestressed Concrete Closed Web/Box Girderlinear ft.1,4291,0012867171
Prestressed Concrete Girder/Beamlinear ft.2302151500
Deck
Reinforced Concrete Decksq. ft.56,01552,6543,36100
Wearing Surfacessq. ft.56,01552,6543,36100
Substructure
Reinforced Concrete Columneach1201200
Reinforced Concrete Pier Caplinear ft.1121011100
Joints
Assembly with Sealeach155155000
Bearings
Elastomeric Bearingeach1414000
Movable Bearingeach40400
Steel Protective Coatingsq. ft.999999000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,4291,28614300