I124 NBL over I-124-RL / W. 9TH ST.


+35.04625, -85.31387
35°02'47" N, 85°18'50" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I124 NBL over I-124-RL / W. 9TH ST.
Structure number:33I01240013
Location:3 MI S OF TN RIVER
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:138.5 ft. [42.2 m]
Total length:138.5 ft. [42.2 m]
Roadway width between curbs:74.8 ft. [22.8 m]
Deck width edge-to-edge:75.5 ft. [23.0 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:26°
Owner:State Highway Agency [01]
Year built:2018
Historic significance:Historical significance is not determinable at this time [4]
Main span material:Prestressed concrete [5]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: August 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:73,550 [as of 2017]
Truck traffic:5% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Superior to present desirable criteria [9]
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:93.5

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2018GoodVery GoodVery GoodVery Good7355093.5
August 2016PoorGoodPoorSatisfactory7211043.4
August 2014PoorGoodPoorSatisfactory6953043.7
August 2012FairGoodSatisfactorySatisfactory7960070.1
August 2010FairGoodSatisfactorySatisfactory8101073.0
January 2010FairSatisfactoryFairFair7865059.2
September 2008FairSatisfactoryFairFair6843060.0
August 2006FairSatisfactoryFairFair6875062.0
September 2004FairSatisfactoryFairFair6810061.0
September 2002FairSatisfactoryFairFair6585061.1
October 2000FairSatisfactoryFairFair5962068.0
October 1998FairSatisfactoryFairFair6004066.0
August 1996FairGoodSatisfactorySatisfactory6800076.0
January 1995GoodGoodGoodGood6284076.0
December 1992GoodGoodGoodGood3835076.0
April 1991GoodGoodGoodGood3835076.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Prestressed Concrete Closed Web/Box Girderlinear ft.2,3762,31610500
Reinforced Concrete Decksq. ft.9,9009,900000
Reinforced Concrete Columneach99000
Reinforced Concrete Abutmentlinear ft.10093700
Reinforced Concrete Pier Caplinear ft.1501330170
Elastomeric Bearingeach4848000
Fixed Bearingeach4848000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.396396000