Structure 12101590 · Fulton County, GA

I-75 over Chattahoochee River

Carries I-75 over Chattahoochee River, In N Atlanta.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,020 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

1,020 ft end to end, longest span 60 ft: about 2.8 football fields. 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 multi-beam bridge.

Built1964rebuilt 1998
Length1020.0 ft310.9 m
Daily traffic183,000counted 2024
Last inspectedJune 2023every 24 months

Location

StateGeorgia
CountyFulton
LocationIn N Atlanta
CarriesI-75
CrossesChattahoochee River
Coordinates33.87549, -84.44765

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1020.0 ft (310.9 m)
Max Span60.0 ft (18.3 m)
Deck Width193.2 ft (58.9 m)
Deck Area18312.0 sq m
Main Spans17
Year Built1964 (reconstructed 1998)

Traffic

Avg Daily Traffic183,000 (2024)
Truck Traffic4%
Lanes On Bridge12

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000012101590

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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