US Bridges

I-20 over SR 3- Nor Southern RR

Fair

Fulton County, Georgia · In Atlanta · Structure no. 000000012101800

Built
1963
62 years old, rebuilt 1986
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
893 ft
7 main spans
Daily traffic
207,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-20 over SR 3- Nor Southern RR is a steel stringer/multi-beam or girder carrying I-20 over SR 3- Nor Southern RR in Fulton County, Georgia. It was built in 1963 and reconstructed in 1986, so it is 62 years old, older than the Georgia average of 47.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 207,000 vehicles a day, roughly 1% of them trucks, projected to reach 246,630 by 2032. The structure is 893 ft (272.2 m) long and 189 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-20
CrossesSR 3- Nor Southern RR
LocationIn Atlanta
RouteInterstate 20
CountyFulton County
StateGeorgia
Coordinates33.74116, -84.40773
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.9 US tons
Inventory rating20.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans7 (+9 approach)
Design loadHS 20 + Mod
Structure length893 ft (272.2 m)
Longest span100 ft (30.5 m)
Deck width189 ft (57.6 m)
Roadway width183 ft (55.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic207,000 (2024)
Projected traffic246,630 by 2032
Trucks1%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$19.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-20 over SR 3- Nor Southern RR built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1986.

What condition is I-20 over SR 3- Nor Southern RR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does I-20 over SR 3- Nor Southern RR carry?

About 207,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-20 over SR 3- Nor Southern RR?

The structure is 893 ft (272.2 m) long with a longest span of 100 ft (30.5 m) and a deck 189 ft wide.

Who owns I-20 over SR 3- Nor Southern RR?

It is owned by the State Highway Agency.