SR 20 - US 411 (WB over SR 293- CSX RR (340459V)


+34.21961, -84.85358
34°13'11" N, 84°51'13" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 20 - US 411 (WB over SR 293- CSX RR (340459V)
Structure number:000000001500270
Purpose:Carries highway over highway and railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:56.1 ft. [17.1 m]
Total length:319.9 ft. [97.5 m]
Roadway width between curbs:41.3 ft. [12.6 m]
Deck width edge-to-edge:44.3 ft. [13.5 m]
Vertical clearance below bridge:23.6 ft. [7.2 m]
Skew angle:32°
Owner:State Highway Agency [01]
Year built:1959
Year reconstructed:2002
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:6
Main spans material:Steel [3]
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: September 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:15,480 [as of 2011]
Truck traffic:12% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 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:Better than present minimum criteria [7]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:36.6 tons [33.3 metric tons]
Inventory rating:21.8 tons [19.8 metric tons]
Sufficiency rating:81.5
Estimated cost of work:$1,875,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201681.5GoodVery GoodVery GoodGood-15480
September 201481.5GoodVery GoodVery GoodGood-15480
September 201283.6GoodVery GoodVery GoodGood-15480
September 201085.0GoodVery GoodVery GoodGood-17730
October 200885.0GoodVery GoodVery GoodGood-17730
September 200685.0GoodVery GoodVery GoodGood-17990
September 200485.0GoodVery GoodVery GoodGood-16940
October 200284.9GoodVery GoodVery GoodGood-19500
September 200066.1FairSatisfactoryGoodGoodFO10880
October 199863.9FairSatisfactoryGoodGoodFO10880
August 199676.3FairSatisfactoryGoodGoodFO10880
September 199474.9FairSatisfactoryVery GoodGoodFO10880
July 199274.9FairSatisfactoryVery GoodGoodFO10880
December 199074.9FairSatisfactoryVery GoodGoodFO10880

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.2,5602,560000
Reinforced Concrete Decksq. ft.14,20414,204000
Reinforced Concrete Columneach2020000
Reinforced Concrete Abutmentlinear ft.9090000
Reinforced Concrete Pier Caplinear ft.200200000
Pourable Jointlinear ft.294294000
Movable Bearingeach4848000
Fixed Bearingeach4848000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.640640000
Steel Protective Coatingsq. ft.25,02025,020000