US Bridges

Dahlonega HWY over Double Branch

Fair

Forsyth County, Georgia · 5 MI NE of Cumming · Structure no. 000000011700030

Built
1955
70 years old, rebuilt 1980
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
11,300
2024 count
Owner
State
State Highway Agency

About this bridge

Dahlonega HWY over Double Branch is a concrete culvert carrying Dahlonega HWY over Double Branch in Forsyth County, Georgia. It was built in 1955 and reconstructed in 1980, so it is 70 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 11,300 vehicles a day, roughly 1% of them trucks, projected to reach 10,140 by 2032. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesDahlonega HWY
CrossesDouble Branch
Location5 MI NE of Cumming
RouteState Highway 9
StateGeorgia
Coordinates34.28232, -84.09464
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating46 US tons
Inventory rating26.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,300 (2024)
Projected traffic10,140 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedNone recorded
Estimated improvement cost$152,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Dahlonega HWY over Double Branch built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1980.

What condition is Dahlonega HWY over Double Branch 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 2023.

How much traffic does Dahlonega HWY over Double Branch carry?

About 11,300 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Dahlonega HWY over Double Branch?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m).

Who owns Dahlonega HWY over Double Branch?

It is owned by the State Highway Agency.