SH 147 over Black Slough
GoodSan Augustine County, Texas · 0.30 MI N of FM 1992 · Structure no. 112030039001060
- Built
- 1977
- 48 years old
- Condition
- Good
- inspected May 2024
- Type
- Culvert
- Concrete
- Length
- 33 ft
- 3 main spans
- Daily traffic
- 2,373
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
SH 147 over Black Slough is a concrete culvert carrying SH 147 over Black Slough in San Augustine County, Texas. It was built in 1977, so it is 48 years old, older than the Texas average of 44.4 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 2,373 vehicles a day, roughly 7% of them trucks, projected to reach 3,322 by 2040. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 6.2 mi (10 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 147 over Black Slough built?
It was built in 1977, making it 48 years old in 2025.
What condition is SH 147 over Black 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 2024.
How much traffic does SH 147 over Black Slough carry?
About 2,373 vehicles per day (2020 count), of which roughly 7% are trucks.
How long is SH 147 over Black Slough?
The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).
Who owns SH 147 over Black Slough?
It is owned by the State Highway Agency.