I 90 WB over US 20 N BEACON ST


+42.35791, -71.15433
42°21'28" N, 71°09'16" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 90 WB over US 20 N BEACON ST
Structure number:B160604RKDOTNBI
Location:.2 MI S. CHARLES RV S39
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Tolls:Yes, on toll road [2]
Length of largest span:60.0 ft. [18.3 m]
Total length:124.0 ft. [37.8 m]
Roadway width between curbs:52.5 ft. [16.0 m]
Deck width edge-to-edge:57.4 ft. [17.5 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:45°
Owner:State Highway Agency [01]
Year built:1964
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: January 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:66,879 [as of 2013]
Truck traffic:12% of total traffic
Deck condition:Fair [5 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:Basically intolerable requiring high priority of replacement [2]
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:50.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,446,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
January 2018FairFairFairFair6687950.0
January 2016PoorPoorFairFair3562048.0
January 2014PoorPoorFairFair10439348.0
January 2012PoorPoorFairFair10439348.0
February 2010PoorPoorSatisfactoryFair10439348.0
September 2007PoorPoorSatisfactorySatisfactory10546559.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.96084567480
Steel Protective Coatingsq. ft.7,5836,292525374392
Reinforced Concrete Decksq. ft.7,1204,4112,634750
Wearing Surfacessq. ft.6,5106,26224800
Reinforced Concrete Columneach51400
Reinforced Concrete Abutmentlinear ft.160728080
Reinforced Concrete Pier Caplinear ft.803035150
Compression Jointlinear ft.150015000
Movable Bearingeach1601600
Steel Protective Coatingsq. ft.8000080
Fixed Bearingeach1601600
Steel Protective Coatingsq. ft.8000080
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.250250000
Reinforced Concrete Bridge Raillinear ft.250100100500