US Bridges

Idlewood Road over SR 410 Stone Mtn Freeway

Good

DeKalb County, Georgia · 2.3 MI NE of Clarkston · Structure no. 000000008902140

Built
1967
58 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
300 ft
4 main spans
Daily traffic
8,930
2024 count
Owner
State
State Highway Agency

About this bridge

Idlewood Road over SR 410 Stone Mtn Freeway is a steel stringer/multi-beam or girder carrying Idlewood Road over SR 410 Stone Mtn Freeway in DeKalb County, Georgia. It was built in 1967, so it is 58 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 8,930 vehicles a day, roughly 1% of them trucks, projected to reach 11,580 by 2031. The structure is 300 ft (91.4 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesIdlewood Road
CrossesSR 410 Stone Mtn Freeway
Location2.3 MI NE of Clarkston
RouteCity Street 9287
StateGeorgia
Coordinates33.83445, -84.21377
Functional classUrban Collector

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.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating40.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length300 ft (91.4 m)
Longest span85 ft (25.9 m)
Deck width34 ft (10.5 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,930 (2024)
Projected traffic11,580 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.8 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Idlewood Road over SR 410 Stone Mtn Freeway built?

It was built in 1967, making it 58 years old in 2025.

What condition is Idlewood Road over SR 410 Stone Mtn Freeway 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 July 2024.

How much traffic does Idlewood Road over SR 410 Stone Mtn Freeway carry?

About 8,930 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Idlewood Road over SR 410 Stone Mtn Freeway?

The structure is 300 ft (91.4 m) long with a longest span of 85 ft (25.9 m) and a deck 34 ft wide.

Who owns Idlewood Road over SR 410 Stone Mtn Freeway?

It is owned by the State Highway Agency.