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I-81 NBL over BONHAM ROAD

Map

Coordinates:
+36.62617, -82.13145
36°37'34" N, 82°07'53" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-81 NBL over BONHAM ROAD
Structure number:000000000025455
Location:.61MI RT.658 &1.3MI RT.11
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:102.0 ft. [31.1 m]
Total length:102.0 ft. [31.1 m]
Roadway width between curbs:58.7 ft. [17.9 m]
Deck width edge-to-edge:61.7 ft. [18.8 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:27°
Owner:State Highway Agency [01]
Year built:2001
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: June 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:25,091 [as of 2014]
Truck traffic:23% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Better than present minimum criteria [7]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:93.4

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2017FairSatisfactoryGoodSatisfactory2509193.4
June 2015FairSatisfactoryGoodSatisfactory2509193.4
June 2013FairSatisfactoryGoodSatisfactory2729492.1
June 2011FairSatisfactoryGoodGood2729492.1
June 2009FairSatisfactoryGoodGood2729492.1
July 2007FairSatisfactoryGoodGood2343892.6
July 2005FairSatisfactoryGoodGood2346892.6
July 2003GoodGoodVery GoodGood2153892.9
June 2001GoodVery GoodVery GoodExcellent2057495.1

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.700700000
Steel Protective Coatingsq. ft.7,6157,610500
Deck
Reinforced Concrete Decksq. ft.6,29306,28850
Substructure
Reinforced Concrete Abutmentlinear ft.1424210000
Steel Pileeach20200
Joints
Compression Jointlinear ft.1441242000
Bearings
Movable Bearingeach74300
Steel Protective Coatingsq. ft.1414000
Fixed Bearingeach73400
Steel Protective Coatingsq. ft.1412200
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.2041861800