US Bridges

I-285 Rmp Ccbl- Cd over I-75

Good

Cobb County, Georgia · 6.7 MI SE of Marietta · Structure no. 000000006753570

Built
2017
8 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
188 ft
2 main spans
Daily traffic
6,805
2024 count
Owner
State
State Highway Agency

About this bridge

I-285 Rmp Ccbl- Cd over I-75 is a prestressed concrete stringer/multi-beam or girder carrying I-285 Rmp Ccbl- Cd over I-75 in Cobb County, Georgia. It was built in 2017, so it is 8 years old, younger 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 6,805 vehicles a day, roughly 22% of them trucks, projected to reach 46,658 by 2035. The structure is 188 ft (57.3 m) long and 69 ft wide.

CarriesI-285 Rmp Ccbl- Cd
CrossesI-75
Location6.7 MI SE of Marietta
RouteInterstate 285
StateGeorgia
Coordinates33.89104, -84.46146
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.9 US tons
Inventory rating48 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length188 ft (57.3 m)
Longest span94 ft (28.7 m)
Deck width69 ft (21.1 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,805 (2024)
Projected traffic46,658 by 2035
Trucks22%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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$25.1 million (2019 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-285 Rmp Ccbl- Cd over I-75 built?

It was built in 2017, making it 8 years old in 2025.

What condition is I-285 Rmp Ccbl- Cd over I-75 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 September 2023.

How much traffic does I-285 Rmp Ccbl- Cd over I-75 carry?

About 6,805 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is I-285 Rmp Ccbl- Cd over I-75?

The structure is 188 ft (57.3 m) long with a longest span of 94 ft (28.7 m) and a deck 69 ft wide.

Who owns I-285 Rmp Ccbl- Cd over I-75?

It is owned by the State Highway Agency.