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 

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]
Evaluation:Functionally obsolete [2]
Sufficiency rating:79.2
Estimated cost of work:$6,826,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
June 201579.2Functionally obsoleteGoodGoodGood146330
July 201379.2Functionally obsoleteGoodGoodGood146330
July 201179.2Functionally obsoleteGoodGoodGood180900
September 200979.2Functionally obsoleteGoodGoodGood180900
July 200779.2Functionally obsoleteGoodGoodGood160640
August 200579.2Functionally obsoleteGoodGoodGood164570
August 200383.2Not deficientGoodGoodGood160500
September 200183.2Not deficientGoodGoodGood123700
July 199982.2Not deficientGoodGoodGood123700
October 199692.0Not deficientGoodVery GoodGood123700
September 199490.0Not deficientGoodVery GoodGood123700
August 199290.0Not deficientGoodGoodGood110657
August 199097.0Not deficientGoodGoodGood110657