Diamond Causeway over Moon River
FairChatham County, Georgia · 5 MI SE of Mont-Cross RD · Structure no. 000000005101460
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 1,313 ft
- 21 main spans
- Daily traffic
- 19,300
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Diamond Causeway over Moon River is a prestressed concrete stringer/multi-beam or girder carrying Diamond Causeway over Moon River in Chatham County, Georgia. It was built in 1970, so it is 55 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 19,300 vehicles a day, roughly 1% of them trucks, projected to reach 19,620 by 2031. The structure is 1,313 ft (400.2 m) long and 34 ft wide. If it were closed, the detour would be 98.8 mi (159 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Diamond Causeway over Moon River built?
It was built in 1970, making it 55 years old in 2025.
What condition is Diamond Causeway over Moon 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 September 2024.
How much traffic does Diamond Causeway over Moon River carry?
About 19,300 vehicles per day (2024 count), of which roughly 1% are trucks.
How long is Diamond Causeway over Moon River?
The structure is 1,313 ft (400.2 m) long with a longest span of 70 ft (21.3 m) and a deck 34 ft wide.
Who owns Diamond Causeway over Moon River?
It is owned by the State Highway Agency.