US Bridges

I-285 over M-9261 Shallowford Road

Fair

DeKalb County, Georgia · 1.9 MI N of Chamblee · Structure no. 000000008900720

Built
1961
64 years old, rebuilt 1995
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
117 ft
3 main spans
Daily traffic
200,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-285 over M-9261 Shallowford Road is a concrete continuous slab carrying I-285 over M-9261 Shallowford Road in DeKalb County, Georgia. It was built in 1961 and reconstructed in 1995, so it is 64 years old, older than the Georgia average of 47.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 200,000 vehicles a day, roughly 8% of them trucks, projected to reach 316,110 by 2031. The structure is 117 ft (35.7 m) long and 162 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-285
CrossesM-9261 Shallowford Road
Location1.9 MI N of Chamblee
RouteInterstate 285
CountyDeKalb County
StateGeorgia
Coordinates33.92031, -84.30518
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 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 rating57 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length117 ft (35.7 m)
Longest span51 ft (15.5 m)
Deck width162 ft (49.4 m)
Roadway width155 ft (47.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200,000 (2024)
Projected traffic316,110 by 2031
Trucks8%
Lanes on structure10
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$2.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-285 over M-9261 Shallowford Road built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1995.

What condition is I-285 over M-9261 Shallowford Road in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does I-285 over M-9261 Shallowford Road carry?

About 200,000 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is I-285 over M-9261 Shallowford Road?

The structure is 117 ft (35.7 m) long with a longest span of 51 ft (15.5 m) and a deck 162 ft wide.

Who owns I-285 over M-9261 Shallowford Road?

It is owned by the State Highway Agency.