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ST128 over HWY CONCORD ST

Map

Coordinates:
+42.62427, -70.70979
42°37'27" N, 70°42'35" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:ST128 over HWY CONCORD ST
Structure number:G050212U7DOTNBI
Old structure number:2U7050509028101 (from 1992 edition)
Location:.7 MI N ST133
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:58.1 ft. [17.7 m]
Total length:61.0 ft. [18.6 m]
Roadway width between curbs:88.9 ft. [27.1 m]
Deck width edge-to-edge:91.9 ft. [28.0 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:16°
Owner:State Highway Agency [01]
Year built:1948
Historic significance:Historical significance is not determinable at this time [4]
Design load:M 18 / H 20 [4]
Main span material:Steel [3]
Main span 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:87,200 [as of 2017]
Truck traffic:2% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Equal to present minimum criteria [6]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:66.6
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$2,756,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2017FairFairFairGood8720066.6
May 2015FairFairFairGood3720072.7
May 2013FairSatisfactorySatisfactoryGood3720086.3
May 2011FairSatisfactorySatisfactoryGood5700080.4
May 2009FairSatisfactorySatisfactoryGood5700080.4
May 1999PoorPoorSatisfactoryGood3310079.8
May 1997FairFairGoodGood3310061.6
May 1995FairFairGoodGood3310061.6
May 1991GoodGoodGoodGood2583047.7

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.1,1163666211290
Steel Protective Coatingsq. ft.9,5811,2293,3314,072949
Deck
Reinforced Concrete Decksq. ft.5,8581,7393,8452740
Wearing Surfacessq. ft.4,4954,4523400
Substructure
Reinforced Concrete Abutmentlinear ft.3342934010
Bearings
Movable Bearingeach1900190
Fixed Bearingeach1900190
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.109109000