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INTERSTATE 81- NBL over RTE. 691 (JOHNSTON ROAD)

Map

Coordinates:
+36.84303, -81.49120
36°50'35" N, 81°29'28" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:INTERSTATE 81- NBL over RTE. 691 (JOHNSTON ROAD)
Structure number:000000000017454
Location:1.44 FR R16 - .63 TO R11
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:40.0 ft. [12.2 m]
Total length:111.9 ft. [34.1 m]
Roadway width between curbs:42.0 ft. [12.8 m]
Deck width edge-to-edge:44.0 ft. [13.4 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1963
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Concrete [1]
Main spans design:Tee beam [04]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: January 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:14,010 [as of 2014]
Truck traffic:20% of total traffic
Deck condition:Satisfactory [6 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:Equal to present desirable criteria [8]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:80.5
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$138,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
January 2017FairSatisfactoryFairFair1401080.5
January 2015FairSatisfactoryFairSatisfactory1256179.5
January 2013FairFairFairSatisfactory1256179.5
January 2011FairFairSatisfactorySatisfactory1256190.7
January 2009FairFairSatisfactorySatisfactory1256190.5
February 2007FairFairSatisfactorySatisfactory1531890.3
January 2005FairFairFairSatisfactory1504979.0
January 2003FairFairFairSatisfactory1535879.0
January 2002PoorFairPoorFair1350062.7
January 2001PoorFairPoorFair1285962.8
January 2000PoorFairPoorFair1285962.8
February 1998PoorFairPoorFair1250057.7
March 1997PoorFairPoorFair1250057.7
February 1996PoorPoorPoorFair1150056.2
March 1994FairFairFairSatisfactory1050071.6
February 1992FairFairFairSatisfactory968571.7

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Reinforced Concrete Girder/Beamlinear ft.768592164120
Deck
Reinforced Concrete Top Flangesq. ft.4,9143,2021,685270
Wearing Surfacessq. ft.4,5774,5370400
Substructure
Reinforced Concrete Columneach60510
Reinforced Concrete Abutmentlinear ft.105921210
Concrete Protective Coatingsq. ft.735735000
Reinforced Concrete Pier Caplinear ft.89691550
Concrete Protective Coatingsq. ft.1,0681,0530015
Joints
Pourable Jointlinear ft.17714816013
Bearings
Elastomeric Bearingeach4204200
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.220220000
Reinforced Concrete Bridge Raillinear ft.22010911010
Concrete Protective Coatingsq. ft.1,3201,319001