I-20 over I-285- I-285 RAMP


+33.76519, -84.49387
33°45'55" N, 84°29'38" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I-20 over I-285- I-285 RAMP
Structure number:000000012101670
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:97.1 ft. [29.6 m]
Total length:557.1 ft. [169.8 m]
Roadway width between curbs:117.5 ft. [35.8 m]
Deck width edge-to-edge:120.7 ft. [36.8 m]
Vertical clearance below bridge:17.7 ft. [5.4 m]
Skew angle:30°
Owner:State Highway Agency [01]
Year built:1965
Year reconstructed:1979
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:8
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: June 2015 

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:146,330 [as of 2012]
Truck traffic:1% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 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:Superior to present desirable criteria [9]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:43.6 tons [39.6 metric tons]
Inventory rating:25.7 tons [23.4 metric tons]
Sufficiency rating:79.2
Estimated cost of work:$6,826,000

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201579.2GoodGoodGoodGoodFO146330
July 201379.2GoodGoodGoodGoodFO146330
July 201179.2GoodGoodGoodGoodFO180900
September 200979.2GoodGoodGoodGoodFO180900
July 200779.2GoodGoodGoodGoodFO160640
August 200579.2GoodGoodGoodGoodFO164570
August 200383.2GoodGoodGoodGood-160500
September 200183.2GoodGoodGoodGood-123700
July 199982.2GoodGoodGoodGood-123700
October 199692.0GoodGoodVery GoodGood-123700
September 199490.0GoodGoodVery GoodGood-123700
August 199290.0GoodGoodGoodGood-110657
August 199097.0GoodGoodGoodGood-110657