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HWY GRANITE AVE over WATER NEPONSET RIVER

Map

Coordinates:
+42.27722, -71.05333
42°16'38" N, 71°03'12" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:HWY GRANITE AVE over WATER NEPONSET RIVER
Structure number:B160223A3DOTNBI
Old structure number:3A3054896000100 (from 1992 edition)
Location:MILTON TOWN LINE
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:65.0 ft. [19.8 m]
Total length:187.0 ft. [57.0 m]
Roadway width between curbs:47.9 ft. [14.6 m]
Deck width edge-to-edge:50.9 ft. [15.5 m]
Vertical clearance above deck:14.1 ft. [4.3 m]
Vertical clearance below bridge:5.9 ft. [1.8 m]
Owner:State Highway Agency [01]
Year built:1959
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Main span material:Steel [3]
Main span design:Movable - Bascule [16]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Other [9]

Latest Available Inspection: June 2015

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:40,000 [as of 2015]
Truck traffic:6% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Basically intolerable requiring high priority of replacement [2]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour conditions; field review indicates action is required. [4]
Operating rating:16.2 tons [14.7 metric tons]
Inventory rating:9.7 tons [8.8 metric tons]
Sufficiency rating:6.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$11,743,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 20156.0PoorFairPoorFairSD40000
June 20136.0PoorFairPoorFairSD31800
June 20116.0PoorFairPoorFairSD36000
June 200918.3PoorFairPoorFairSD36000
May 199916.3PoorPoorPoorSatisfactorySD35000
May 199757.2FairFairFairGoodFO32500
December 199447.8FairFairFairGoodFO26000

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.1,49301,12134428
Steel Protective Coatingsq. ft.999999000
Steel Stringerlinear ft.82006568282
Steel Protective Coatingsq. ft.999999000
Deck
Reinforced Concrete Decksq. ft.8,0736,9591,11400
Superstructure
Steel Floor Beamlinear ft.328016411450
Steel Protective Coatingsq. ft.999999000
Substructure
Masonry Pier Walllinear ft.19712830390
Masonry Abutmentlinear ft.16410625330
Reinforced Concrete Pier Caplinear ft.1979949490
Deck
Open Grid Decksq. ft.4,3061,0773,22900
Steel Protective Coatingsq. ft.1,9981,998000
Joints
Compression Jointlinear ft.4904900
Open Jointlinear ft.9898000
Bearings
Movable Bearingeach2802800
Steel Protective Coatingsq. ft.999999000
Fixed Bearingeach3603600
Steel Protective Coatingsq. ft.999999000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.394991975939
Steel Protective Coatingsq. ft.999999000