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I-81 SBL over ISLAND RD & MUMPOWER CK

Map

Coordinates:
+36.62141, -82.18937
36°37'17" N, 82°11'22" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-81 SBL over ISLAND RD & MUMPOWER CK
Structure number:000000000020022
Location:1.96 R 11 &3.58 TENN LINE
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Rural) [01]
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]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: June 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:18,605 [as of 2014]
Truck traffic:20% 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:Superior to present desirable criteria [9]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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:87.1
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$98,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2018FairGoodSatisfactorySatisfactory1860587.1
June 2016FairGoodSatisfactorySatisfactory1860588.9
November 2014FairGoodSatisfactoryFair1300079.3
June 2013PoorPoorSatisfactoryFair1300076.0
June 2011PoorPoorSatisfactorySatisfactory1300085.7
June 2009FairFairSatisfactorySatisfactory1300087.8
May 2007FairFairSatisfactorySatisfactory1300087.8
June 2005FairFairSatisfactorySatisfactory1300087.8
August 2003FairSatisfactorySatisfactorySatisfactory1300088.9
June 2001FairSatisfactoryGoodSatisfactory1300088.9
April 2000FairGoodSatisfactoryFair1300077.1
April 1998FairGoodSatisfactoryFair1300077.1
June 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.4,7504,737760
Deck
Prestressed Concrete Top Flangesq. ft.15,54115,5300110
Wearing Surfacessq. ft.14,67514,6620013
Substructure
Reinforced Concrete Columneach86200
Reinforced Concrete Pier Walllinear ft.4943600
Reinforced Concrete Abutmentlinear ft.1621421910
Reinforced Concrete Pier Caplinear ft.2532193400
Joints
Pourable Jointlinear ft.370362008
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.5054188700