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 

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. ratingEvaluationDeckSuper.Sub.ADT
May 201564.9Not deficientSatisfactoryGoodGood79350
June 201364.9Not deficientSatisfactoryVery GoodGood79350
June 201174.3Not deficientSatisfactoryVery GoodGood15900
September 200966.9Not deficientSatisfactoryVery GoodGood93430
August 200766.9Not deficientSatisfactoryVery GoodGood93670
July 200566.9Not deficientSatisfactoryVery GoodGood92560
July 200366.9Not deficientSatisfactoryVery GoodGood92100
May 200166.9Not deficientSatisfactoryVery GoodGood69350
October 199966.9Not deficientSatisfactoryVery GoodGood69350
August 199685.0Not deficientSatisfactoryVery GoodVery Good69350
November 199485.0Not deficientSatisfactoryVery GoodVery Good69350
September 199385.0Not deficientVery GoodVery GoodSatisfactory69350