US Bridges

I-285 over Shoal Creek

Good

DeKalb County, Georgia · 8.5 MI SE of Decatur · Structure no. 000000008900980

Built
1966
59 years old, rebuilt 1979
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
202 ft
3 main spans
Daily traffic
144,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-285 over Shoal Creek is a steel stringer/multi-beam or girder carrying I-285 over Shoal Creek in DeKalb County, Georgia. It was built in 1966 and reconstructed in 1979, so it is 59 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 144,000 vehicles a day, roughly 1% of them trucks, projected to reach 226,185 by 2031. The structure is 202 ft (61.6 m) long and 134 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesI-285
CrossesShoal Creek
Location8.5 MI SE of Decatur
RouteInterstate 285
StateGeorgia
Coordinates33.69899, -84.25795
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating24.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length202 ft (61.6 m)
Longest span68 ft (20.7 m)
Deck width134 ft (40.9 m)
Roadway width129 ft (39.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic144,000 (2024)
Projected traffic226,185 by 2031
Trucks1%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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$3.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-285 over Shoal Creek built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1979.

What condition is I-285 over Shoal Creek 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 April 2024.

How much traffic does I-285 over Shoal Creek carry?

About 144,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-285 over Shoal Creek?

The structure is 202 ft (61.6 m) long with a longest span of 68 ft (20.7 m) and a deck 134 ft wide.

Who owns I-285 over Shoal Creek?

It is owned by the State Highway Agency.