Share:

I124 NBL over W.MAIN ST (FAU 3553)

Map

Coordinates:
+35.03965, -85.31753
35°02'23" N, 85°19'03" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I124 NBL over W.MAIN ST (FAU 3553)
Structure number:33I01240009
Location:.01 MI FM SR58 W 20TH ST
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:56.1 ft. [17.1 m]
Total length:208.0 ft. [63.4 m]
Roadway width between curbs:51.5 ft. [15.7 m]
Deck width edge-to-edge:62.7 ft. [19.1 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:40°
Owner:State Highway Agency [01]
Year built:1963
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:4
Main spans material:Steel continuous [4]
Main spans 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: August 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:72,110 [as of 2015]
Truck traffic:5% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:76.7

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2016FairGoodFairGood7211076.7
August 2014GoodGoodGoodGood6953088.4
August 2012GoodVery GoodGoodGood7960089.9
August 2010GoodExcellentGoodGood8101092.1
August 2008FairFairFairSatisfactory7865078.5
August 2006FairFairSatisfactorySatisfactory6880091.7
August 2004FairFairSatisfactorySatisfactory6958091.6
September 2002FairFairSatisfactorySatisfactory6922091.6
October 2000FairFairSatisfactorySatisfactory6047078.0
October 1998PoorSeriousSatisfactorySatisfactory6263070.0
September 1998PoorSeriousSatisfactoryGood6263074.0
August 1996PoorSeriousSatisfactoryGood7582071.0
January 1995PoorSeriousSatisfactoryGood5520071.0
December 1992PoorSeriousSatisfactoryGood4685085.2
October 1990PoorSeriousSatisfactoryGood4685085.2

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.1,4561,4461000
Deck
Reinforced Concrete Decksq. ft.11,64811,648000
Substructure
Reinforced Concrete Columneach129030
Reinforced Concrete Abutmentlinear ft.112328000
Reinforced Concrete Pier Caplinear ft.1681551300
Bearings
Movable Bearingeach2828000
Fixed Bearingeach77000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.416416000