I124 SBL over W.MAIN ST (FAU 3553)


+35.03972, -85.31750
35°02'23" N, 85°19'03" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I124 SBL over W.MAIN ST (FAU 3553)
Structure number:33I01240010
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:36.1 ft. [11.0 m]
Deck width edge-to-edge:47.2 ft. [14.4 m]
Vertical clearance below bridge:16.7 ft. [5.1 m]
Skew angle:37°
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 2014 

Status:Open, no restriction [A]
Average daily traffic:69,530 [as of 2014]
Truck traffic:5% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
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]
Operating rating:51.5 tons [46.8 metric tons]
Inventory rating:30.7 tons [27.9 metric tons]
Sufficiency rating:82.2

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201482.2Not deficientGoodSatisfactoryGood69530
August 201283.7Not deficientVery GoodSatisfactorySatisfactory79600
August 201086.9Not deficientVery GoodSatisfactorySatisfactory81010
August 200884.9Not deficientFairSatisfactorySatisfactory78650
August 200686.4Not deficientFairSatisfactorySatisfactory68800
August 200483.3Structurally deficientPoorSatisfactorySatisfactory69580
September 200285.4Not deficientFairSatisfactorySatisfactory69220
October 200087.9Not deficientFairSatisfactorySatisfactory60470
September 199881.5Structurally deficientSeriousSatisfactoryGood62630
August 199675.8Structurally deficientSeriousSatisfactoryGood75820
January 199579.2Structurally deficientSeriousSatisfactoryGood55200
December 199280.0Structurally deficientSeriousSatisfactoryGood46850
October 199080.0Structurally deficientSeriousSatisfactoryGood46850