SR 400 (NBL) over I-85


+33.82156, -84.35938
33°49'18" N, 84°21'34" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 400 (NBL) over I-85
Structure number:000000012107350
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:279.9 ft. [85.3 m]
Total length:1825.2 ft. [556.3 m]
Roadway width between curbs:47.9 ft. [14.6 m]
Deck width edge-to-edge:51.2 ft. [15.6 m]
Vertical clearance below bridge:18.4 ft. [5.6 m]
Skew angle:42°
Owner:State Highway Agency [01]
Year built:1993
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:2
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: May 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:79,350 [as of 2012]
Truck traffic:1% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
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:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Bridge foundations (including piles) on dry land well above flood water elevations. [9]
Operating rating:67.3 tons [61.2 metric tons]
Inventory rating:20.8 tons [18.9 metric tons]
Sufficiency rating:64.9
Estimated cost of work:$10,696,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
May 201564.9FairSatisfactoryGoodGood-79350
June 201364.9FairSatisfactoryVery GoodGood-79350
June 201174.3FairSatisfactoryVery GoodGood-15900
September 200966.9FairSatisfactoryVery GoodGood-93430
August 200766.9FairSatisfactoryVery GoodGood-93670
July 200566.9FairSatisfactoryVery GoodGood-92560
July 200366.9FairSatisfactoryVery GoodGood-92100
May 200166.9FairSatisfactoryVery GoodGood-69350
October 199966.9FairSatisfactoryVery GoodGood-69350
August 199685.0FairSatisfactoryVery GoodVery Good-69350
November 199485.0FairSatisfactoryVery GoodVery Good-69350
September 199385.0FairVery GoodVery GoodSatisfactory-69350

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.2,8002,800000
Steel Protective Coatingsq. ft.57,12057,120000
Prestressed Concrete Girder/Beamlinear ft.8,3058,305000
Reinforced Concrete Decksq. ft.93,61093,609010
Reinforced Concrete Columneach2727000
Reinforced Concrete Abutmentlinear ft.102102000
Reinforced Concrete Pier Caplinear ft.714714000
Strip Seal Jointlinear ft.204002040
Pourable Jointlinear ft.25500102153
Elastomeric Bearingeach172172000
Pot Bearingeach2020000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.3,4453,445000