Share:

S-83 over I-85

Map

Coordinates:
+35.12874, -81.55153
35°07'43" N, 81°33'06" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:S-83 over I-85
Structure number:000000000002674
Location:2.1 MI NW OF BLACKSBURG
Purpose:Carries highway overpass over highway
Route classification:Major Collector (Rural) [07]
Length of largest span:55.1 ft. [16.8 m]
Total length:210.0 ft. [64.0 m]
Roadway width between curbs:28.2 ft. [8.6 m]
Deck width edge-to-edge:33.5 ft. [10.2 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Owner:State Highway Agency [01]
Year built:1958
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:2
Main spans material:Concrete [1]
Main spans design:Tee beam [04]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: November 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:2,400 [as of 2017]
Truck traffic:5% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:78.2

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2018FairSatisfactorySatisfactorySatisfactory240078.2
November 2016FairSatisfactorySatisfactorySatisfactory250078.2
November 2014FairSatisfactorySatisfactorySatisfactory270079.4
December 2012FairSatisfactorySatisfactorySatisfactory270079.4

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Reinforced Concrete Girder/Beamlinear ft.1,05001,000500
Deck
Reinforced Concrete Decksq. ft.5,92205,8001220
Substructure
Reinforced Concrete Columneach1510500
Reinforced Concrete Pier Caplinear ft.1681006800
Joints
Pourable Jointlinear ft.1320010131
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.420420000