US Bridges

I-75 over M-9020 Bells Ferry Road

Good

Cobb County, Georgia · 2.7 MI N of Marietta · Structure no. 000000006700780

Built
1973
52 years old, rebuilt 1990
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
160 ft
3 main spans
Daily traffic
227,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-75 over M-9020 Bells Ferry Road is a steel stringer/multi-beam or girder carrying I-75 over M-9020 Bells Ferry Road in Cobb County, Georgia. It was built in 1973 and reconstructed in 1990, so it is 52 years old, older than the Georgia average of 47.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 227,000 vehicles a day, roughly 11% of them trucks, projected to reach 328,770 by 2032. The structure is 160 ft (48.8 m) long and 200 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-75
CrossesM-9020 Bells Ferry Road
Location2.7 MI N of Marietta
RouteInterstate 75
StateGeorgia
Coordinates33.99108, -84.55114
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating32 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length160 ft (48.8 m)
Longest span87 ft (26.5 m)
Deck width200 ft (60.9 m)
Roadway width194 ft (59.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic227,000 (2024)
Projected traffic328,770 by 2032
Trucks11%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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$3.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 over M-9020 Bells Ferry Road built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 1990.

What condition is I-75 over M-9020 Bells Ferry Road in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does I-75 over M-9020 Bells Ferry Road carry?

About 227,000 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is I-75 over M-9020 Bells Ferry Road?

The structure is 160 ft (48.8 m) long with a longest span of 87 ft (26.5 m) and a deck 200 ft wide.

Who owns I-75 over M-9020 Bells Ferry Road?

It is owned by the State Highway Agency.