RMP I20 TO SR 139 over I-285 (SR 407)


+33.76450, -84.49275
33°45'52" N, 84°29'34" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:RMP I20 TO SR 139 over I-285 (SR 407)
Structure number:000000012101890
Purpose:Carries highway over highway
Route classification:Local (Urban) [19]
Length of largest span:179.1 ft. [54.6 m]
Total length:550.9 ft. [167.9 m]
Roadway width between curbs:28.5 ft. [8.7 m]
Deck width edge-to-edge:31.5 ft. [9.6 m]
Vertical clearance below bridge:17.1 ft. [5.2 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built: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:4
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: July 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:4,640 [as of 2012]
Truck traffic:1% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
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:94.1 tons [85.5 metric tons]
Inventory rating:56.4 tons [51.3 metric tons]
Sufficiency rating:91.8
Estimated cost of work:$2,349,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201591.8FairGoodSatisfactoryGoodFO4640
July 201391.8FairGoodSatisfactoryGoodFO4640
July 201195.9FairGoodSatisfactoryGood-1900
November 200995.9GoodGoodGoodGood-1900
July 200795.9GoodGoodGoodGood-1990
August 200590.8GoodGoodGoodGood-1530
August 200390.6GoodGoodGoodGood-4400
September 200190.6GoodGoodGoodGood-4400
July 199990.6GoodGoodGoodGood-4400
October 199695.8GoodVery GoodGoodGood-4400
September 199495.7GoodVery GoodGoodGood-4400
August 199295.7GoodVery GoodGoodGood-4400
August 199097.7GoodVery GoodGoodGood-4400

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.2,2042,204000
Steel Protective Coatingsq. ft.33,060033,06000
Reinforced Concrete Decksq. ft.17,41117,411000
Reinforced Concrete Columneach66000
Reinforced Concrete Abutmentlinear ft.6464000
Reinforced Concrete Pier Caplinear ft.9695100
Strip Seal Jointlinear ft.64320032
Pourable Jointlinear ft.9696000
Movable Bearingeach1616000
Steel Protective Coatingsq. ft.1601240
Fixed Bearingeach84040
Steel Protective Coatingsq. ft.80044
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,1021,102000