US Bridges

I-285 over N Fork Nancy Creek

Good

DeKalb County, Georgia · 2.5 MI NW of Chamblee · Structure no. 000000008900710

Built
1960
65 years old, rebuilt 1975
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
230,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-285 over N Fork Nancy Creek is a concrete culvert carrying I-285 over N Fork Nancy Creek in DeKalb County, Georgia. It was built in 1960 and reconstructed in 1975, so it is 65 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 230,000 vehicles a day, roughly 1% of them trucks, projected to reach 362,715 by 2031. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI-285
CrossesN Fork Nancy Creek
Location2.5 MI NW of Chamblee
RouteInterstate 285
StateGeorgia
Coordinates33.92016, -84.32728
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230,000 (2024)
Projected traffic362,715 by 2031
Trucks1%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$459,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I-285 over N Fork Nancy Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1975.

What condition is I-285 over N Fork Nancy 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 August 2024.

How much traffic does I-285 over N Fork Nancy Creek carry?

About 230,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-285 over N Fork Nancy Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns I-285 over N Fork Nancy Creek?

It is owned by the State Highway Agency.