US Bridges

Duncan Bridge RD over Chattahoochee River

Fair

Habersham County, Georgia · 6 MI NW of Baldwin · Structure no. 000000013700320

Built
1960
65 years old, rebuilt 1994
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
333 ft
4 main spans
Daily traffic
6,780
2024 count
Owner
State
State Highway Agency

About this bridge

Duncan Bridge RD over Chattahoochee River is a steel continuous stringer/multi-beam or girder carrying Duncan Bridge RD over Chattahoochee River in Habersham County, Georgia. It was built in 1960 and reconstructed in 1994, 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 fair condition with a lowest component rating of 5 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 6,780 vehicles a day, roughly 1% of them trucks, projected to reach 8,535 by 2031. The structure is 333 ft (101.5 m) long and 47 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesDuncan Bridge RD
CrossesChattahoochee River
Location6 MI NW of Baldwin
RouteState Highway 384
StateGeorgia
Coordinates34.54075, -83.62278
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.9 US tons
Inventory rating21.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length333 ft (101.5 m)
Longest span104 ft (31.7 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,780 (2024)
Projected traffic8,535 by 2031
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$2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Duncan Bridge RD over Chattahoochee River built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1994.

What condition is Duncan Bridge RD over Chattahoochee River 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 April 2024.

How much traffic does Duncan Bridge RD over Chattahoochee River carry?

About 6,780 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Duncan Bridge RD over Chattahoochee River?

The structure is 333 ft (101.5 m) long with a longest span of 104 ft (31.7 m) and a deck 47 ft wide.

Who owns Duncan Bridge RD over Chattahoochee River?

It is owned by the State Highway Agency.