US Bridges

Ramp I-285W to I-7 over I-285 Cbl Cd

Good

Cobb County, Georgia · 6.7 MI SE of Marietta · Structure no. 000000006700880

Built
1963
62 years old, rebuilt 1997
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
137 ft
3 main spans
Daily traffic
17,800
2024 count
Owner
State
State Highway Agency

About this bridge

Ramp I-285W to I-7 over I-285 Cbl Cd is a steel stringer/multi-beam or girder carrying Ramp I-285W to I-7 over I-285 Cbl Cd in Cobb County, Georgia. It was built in 1963 and reconstructed in 1997, 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 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 17,800 vehicles a day, roughly 1% of them trucks, projected to reach 24,030 by 2032. The structure is 137 ft (41.8 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesRamp I-285W to I-7
CrossesI-285 Cbl Cd
Location6.7 MI SE of Marietta
RouteInterstate 285
CountyCobb County
StateGeorgia
Coordinates33.88853, -84.46252
Functional classUrban Local

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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.9 US tons
Inventory rating22.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length137 ft (41.8 m)
Longest span60 ft (18.3 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,800 (2024)
Projected traffic24,030 by 2032
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp I-285W to I-7 over I-285 Cbl Cd built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1997.

What condition is Ramp I-285W to I-7 over I-285 Cbl Cd 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 March 2023.

How much traffic does Ramp I-285W to I-7 over I-285 Cbl Cd carry?

About 17,800 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Ramp I-285W to I-7 over I-285 Cbl Cd?

The structure is 137 ft (41.8 m) long with a longest span of 60 ft (18.3 m) and a deck 48 ft wide.

Who owns Ramp I-285W to I-7 over I-285 Cbl Cd?

It is owned by the State Highway Agency.