SR-29 over Twelve Mile Slough
GoodHendry County, Florida · 1.3 Mi. S of CR-832 · Structure no. 070021
- Built
- 1946
- 79 years old, rebuilt 1988
- Condition
- Good
- inspected May 2023
- Type
- Culvert
- Concrete
- Length
- 22 ft
- 2 main spans
- Daily traffic
- 6,100
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
SR-29 over Twelve Mile Slough is a concrete culvert carrying SR-29 over Twelve Mile Slough in Hendry County, Florida. It was built in 1946 and reconstructed in 1988, so it is 79 years old, older than the Florida average of 41.3 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 6,100 vehicles a day, roughly 26% of them trucks, projected to reach 10,584 by 2044. The structure is 22 ft (6.8 m) long. If it were closed, the detour would be 34.8 mi (56 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR-29 over Twelve Mile Slough built?
It was built in 1946, making it 79 years old in 2025. It was reconstructed in 1988.
What condition is SR-29 over Twelve Mile Slough 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 May 2023.
How much traffic does SR-29 over Twelve Mile Slough carry?
About 6,100 vehicles per day (2022 count), of which roughly 26% are trucks.
How long is SR-29 over Twelve Mile Slough?
The structure is 22 ft (6.8 m) long with a longest span of 11 ft (3.4 m).
Who owns SR-29 over Twelve Mile Slough?
It is owned by the State Highway Agency.