I 93 /US1/ST3 over HWY CONLEY ST


+42.29326, -71.04476
42°17'36" N, 71°02'41" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 93 /US1/ST3 over HWY CONLEY ST
Structure number:B162643DCDOTNBI
Location:6.6 KM S OF JCT I90&I93
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:50.9 ft. [15.5 m]
Total length:118.1 ft. [36.0 m]
Roadway width between curbs:109.9 ft. [33.5 m]
Deck width edge-to-edge:117.5 ft. [35.8 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1955
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:3
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 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:162,704 [as of 2017]
Truck traffic:12% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 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]
Sufficiency rating:70.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$6,700,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2018FairSatisfactorySatisfactoryFair16270470.0
May 2016FairSatisfactorySatisfactoryFair15138670.0
May 2014FairSatisfactoryGoodFair21040070.0
May 2012FairSatisfactoryGoodFair21040070.0
May 2010FairGoodGoodFair21020070.0
May 2008FairGoodGoodSatisfactory21000081.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,5721,079483100
Steel Protective Coatingsq. ft.12,1037,9563,7044430
Reinforced Concrete Decksq. ft.13,80613,54925700
Wearing Surfacessq. ft.12,98011,6821,29800
Reinforced Concrete Columneach80080
Reinforced Concrete Abutmentlinear ft.23514542480
Reinforced Concrete Pier Caplinear ft.2350220150
Compression Jointlinear ft.2201863400
Movable Bearingeach42030120
Steel Protective Coatingsq. ft.105075300
Fixed Bearingeach42022200
Steel Protective Coatingsq. ft.105065400
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.2360221150