US Bridges

I-285 Cbl over SR 410 Ramp to I-285

Good

DeKalb County, Georgia · 0.8 MI NW of Clarkston · Structure no. 000000008900870

Built
1968
57 years old, rebuilt 1981
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
161 ft
3 main spans
Daily traffic
193,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-285 Cbl over SR 410 Ramp to I-285 is a steel stringer/multi-beam or girder carrying I-285 Cbl over SR 410 Ramp to I-285 in DeKalb County, Georgia. It was built in 1968 and reconstructed in 1981, so it is 57 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 193,000 vehicles a day, roughly 1% of them trucks, projected to reach 275,835 by 2031. The structure is 161 ft (49.1 m) long and 85 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-285 Cbl
CrossesSR 410 Ramp to I-285
Location0.8 MI NW of Clarkston
RouteInterstate 285
StateGeorgia
Coordinates33.81351, -84.2515
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating29 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length161 ft (49.1 m)
Longest span66 ft (20.1 m)
Deck width85 ft (26 m)
Roadway width82 ft (25 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic193,000 (2024)
Projected traffic275,835 by 2031
Trucks1%
Lanes on structure4
Traffic directionOne-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$1.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-285 Cbl over SR 410 Ramp to I-285 built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1981.

What condition is I-285 Cbl over SR 410 Ramp to I-285 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 June 2024.

How much traffic does I-285 Cbl over SR 410 Ramp to I-285 carry?

About 193,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-285 Cbl over SR 410 Ramp to I-285?

The structure is 161 ft (49.1 m) long with a longest span of 66 ft (20.1 m) and a deck 85 ft wide.

Who owns I-285 Cbl over SR 410 Ramp to I-285?

It is owned by the State Highway Agency.