ST104 N MAIN ST over I 495


+41.95740, -71.04394
41°57'27" N, 71°02'38" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:ST104 N MAIN ST over I 495
Structure number:R020263VFDOTNBI
Location:ST 104 AT I 495
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:119.1 ft. [36.3 m]
Total length:243.1 ft. [74.1 m]
Roadway width between curbs:40.7 ft. [12.4 m]
Deck width edge-to-edge:49.2 ft. [15.0 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:17°
Owner:State Highway Agency [01]
Year built:1978
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Number of main spans:2
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: May 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:11,150 [as of 2017]
Truck traffic:7% 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:Superior to present desirable criteria [9]
Roadway alignment appraisal:Superior to present desirable criteria [9]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:94.4
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$934,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2017FairSatisfactoryGoodGood1115094.4
May 2015FairSatisfactoryGoodGood1115094.4
May 2013FairSatisfactoryGoodGood890094.9
May 2011FairSatisfactoryGoodGood890094.9
May 2009FairSatisfactoryGoodGood890094.9

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,74701,659880
Steel Protective Coatingsq. ft.23,06223,062000
Reinforced Concrete Decksq. ft.12,09510,4141,68100
Wearing Surfacessq. ft.9,9989,50449400
Reinforced Concrete Pier Walllinear ft.102102000
Reinforced Concrete Abutmentlinear ft.103103000
Compression Jointlinear ft.8508500
Movable Bearingeach1411300
Steel Protective Coatingsq. ft.2822600
Fixed Bearingeach77000
Steel Protective Coatingsq. ft.1414000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.4924811100