Structure 12107060 · Fulton County, GA

I-75 Rmp To I-20WB over M9164 & Rmp- M9166 & Rmp

Carries I-75 Rmp To I-20WB over M9164 & Rmp- M9166 & Rmp, I-75 & I-20 Interchange.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT520 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

520 ft end to end, longest span 190 ft: about 7 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a box-beam bridge.

Built198937 years old
Length520.0 ft158.5 m
Daily traffic6,805counted 2024
Last inspectedJuly 2023every 24 months

Location

StateGeorgia
CountyFulton
LocationI-75 & I-20 Interchange
CarriesI-75 Rmp To I-20WB
CrossesM9164 & Rmp- M9166 & Rmp
Coordinates33.74580, -84.39387

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Single/Spread
Total Length520.0 ft (158.5 m)
Max Span190.0 ft (57.9 m)
Deck Width46.3 ft (14.1 m)
Deck Area2234.8 sq m
Main Spans3
Year Built1989

Traffic

Avg Daily Traffic6,805 (2024)
Truck Traffic1%
Lanes On Bridge1
Lanes Under Bridge11

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000012107060

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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