US Bridges

Stone Mtn. Road over Little Stone Mountain CR

Fair

DeKalb County, Georgia · 2.4 MI NE of Stone Mtn · Structure no. 000000008902150

Built
1950
75 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
9,560
2024 count
Owner
County
County Highway Agency

About this bridge

Stone Mtn. Road over Little Stone Mountain CR is a steel stringer/multi-beam or girder carrying Stone Mtn. Road over Little Stone Mountain CR in DeKalb County, Georgia. It was built in 1950, so it is 75 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 9,560 vehicles a day, roughly 1% of them trucks, projected to reach 12,690 by 2031. The structure is 24 ft (7.3 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesStone Mtn. Road
CrossesLittle Stone Mountain CR
Location2.4 MI NE of Stone Mtn
RouteCity Street 9294
CountyDeKalb County
StateGeorgia
Coordinates33.83041, -84.13947
Functional classUrban Minor Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51.9 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,560 (2024)
Projected traffic12,690 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$141,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Stone Mtn. Road over Little Stone Mountain CR built?

It was built in 1950, making it 75 years old in 2025.

What condition is Stone Mtn. Road over Little Stone Mountain CR 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 June 2024.

How much traffic does Stone Mtn. Road over Little Stone Mountain CR carry?

About 9,560 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Stone Mtn. Road over Little Stone Mountain CR?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 24 ft wide.

Who owns Stone Mtn. Road over Little Stone Mountain CR?

It is owned by the County Highway Agency.