I 93 RAMP SA-CN over I 93 RAMPS


+42.37000, -71.06306
42°22'12" N, 71°03'47" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 93 RAMP SA-CN over I 93 RAMPS
Structure number:B166039PFDOTNBI
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:153.9 ft. [46.9 m]
Total length:422.3 ft. [128.7 m]
Roadway width between curbs:31.8 ft. [9.7 m]
Deck width edge-to-edge:35.8 ft. [10.9 m]
Vertical clearance below bridge:26.9 ft. [8.2 m]
Owner:State Highway Agency [01]
Year built:2004
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Prestressed concrete continuous [6]
Main spans design:Segmental box girder [21]
Deck type:Concrete Cast-in-Place [1]
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:12,155 [as of 2014]
Truck traffic:4% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:87.6 tons [79.6 metric tons]
Inventory rating:52.3 tons [47.5 metric tons]
Sufficiency rating:91.8
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$2,329,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
March 201691.8FairSatisfactoryGoodGoodFO12155
March 201491.8FairSatisfactoryGoodGoodFO12155
March 201291.5FairSatisfactoryGoodGood-15000
March 201093.0FairSatisfactoryGoodGood--
October 200793.0FairSatisfactoryGoodGood--

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Prestressed Concrete Closed Web/Box Girderlinear ft.4223596300
Reinforced Concrete Decksq. ft.15,20015,200000
Wearing Surfacessq. ft.15,20015,200000
Reinforced Concrete Columneach33000
Prestressed Concrete Pier Caplinear ft.3636000
Reinforced Concrete Pier Caplinear ft.3939000
Assembly with Sealeach7272000
Elastomeric Bearingeach87100
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.84571812700