SH 21 over Palo Gaucho Bayou
FairSan Augustine County, Texas · 0.70 MI E of FM 1 · Structure no. 112030011901013
- Built
- 1954
- 71 years old
- Condition
- Fair
- inspected May 2024
- Type
- Slab
- Concrete Continuous
- Length
- 150 ft
- 6 main spans
- Daily traffic
- 530
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SH 21 over Palo Gaucho Bayou is a concrete continuous slab carrying SH 21 over Palo Gaucho Bayou in San Augustine County, Texas. It was built in 1954, so it is 71 years old, older than the Texas average of 44.4 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 530 vehicles a day, roughly 12% of them trucks, projected to reach 715 by 2040. The structure is 150 ft (45.7 m) long and 30 ft wide. If it were closed, the detour would be 11.2 mi (18 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 21 over Palo Gaucho Bayou built?
It was built in 1954, making it 71 years old in 2025.
What condition is SH 21 over Palo Gaucho Bayou 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 May 2024.
How much traffic does SH 21 over Palo Gaucho Bayou carry?
About 530 vehicles per day (2024 count), of which roughly 12% are trucks.
How long is SH 21 over Palo Gaucho Bayou?
The structure is 150 ft (45.7 m) long with a longest span of 25 ft (7.6 m) and a deck 30 ft wide.
Who owns SH 21 over Palo Gaucho Bayou?
It is owned by the State Highway Agency.