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I-81 NBL over ISLAND RD & MUMPOWER CK

Map

Coordinates:
+36.62125, -82.18931
36°37'17" N, 82°11'22" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-81 NBL over ISLAND RD & MUMPOWER CK
Structure number:000000000020024
Location:1.96 R 11& 3.58 TENN LINE
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:56.1 ft. [17.1 m]
Total length:252.0 ft. [76.8 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:32.8 ft. [10.0 m]
Skew angle:10°
Owner:State Highway Agency [01]
Year built:1961
Year reconstructed:2001
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:5
Main spans material:Prestressed concrete [5]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: June 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:18,808 [as of 2014]
Truck traffic:23% of total traffic
Deck condition:Good [7 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:Better than present minimum criteria [7]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:82.4
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$98,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2017FairGoodSatisfactorySatisfactory1880882.4
June 2015FairFairSatisfactoryFair1880871.9
June 2013FairFairSatisfactoryFair2395170.9
June 2011FairFairSatisfactorySatisfactory2395183.5
June 2009FairSatisfactorySatisfactorySatisfactory2395184.6
May 2007FairSatisfactorySatisfactorySatisfactory2395184.6
June 2005FairSatisfactorySatisfactorySatisfactory2395184.6
August 2003FairSatisfactorySatisfactorySatisfactory2395184.6
June 2001FairSatisfactoryVery GoodSatisfactory2874782.7
April 2000PoorGoodSatisfactoryPoor1645957.3
April 1999PoorGoodSatisfactoryPoor1645957.3
April 1998PoorGoodSatisfactoryPoor1600057.6
July 1996FairGoodSatisfactoryFair1300073.8
May 1994FairGoodGoodFair1300073.8
June 1992FairGoodGoodFair960075.4
May 1990FairVery GoodVery GoodFair960075.4

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Closed Web/Box Girderlinear ft.4,7503,3201,43000
Deck
Reinforced Concrete Decksq. ft.15,54215,542000
Wearing Surfacessq. ft.14,97814,978000
Substructure
Reinforced Concrete Columneach86200
Reinforced Concrete Pier Walllinear ft.49290200
Reinforced Concrete Abutmentlinear ft.1274847320
Reinforced Concrete Pile Cap/Footinglinear ft.127127000
Reinforced Concrete Pier Caplinear ft.2532233000
Joints
Pourable Jointlinear ft.37110127000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.5054366900