US 181 SB over Drainage Ditch
FairSan Patricio County, Texas · 1.3 MI NW of FM 631 · Structure no. 162050010104027
- Built
- 1942
- 83 years old, rebuilt 1967
- Condition
- Fair
- inspected January 2024
- Type
- Culvert
- Concrete
- Length
- 27 ft
- 5 main spans
- Daily traffic
- 4,465
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 181 SB over Drainage Ditch is a concrete culvert carrying US 181 SB over Drainage Ditch in San Patricio County, Texas. It was built in 1942 and reconstructed in 1967, so it is 83 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 4,465 vehicles a day, roughly 9% of them trucks, projected to reach 7,858 by 2042. The structure is 27 ft (8.2 m) long and 48 ft wide. If it were closed, the detour would be 3.1 mi (5 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 181 SB over Drainage Ditch built?
It was built in 1942, making it 83 years old in 2025. It was reconstructed in 1967.
What condition is US 181 SB over Drainage Ditch 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 January 2024.
How much traffic does US 181 SB over Drainage Ditch carry?
About 4,465 vehicles per day (2022 count), of which roughly 9% are trucks.
How long is US 181 SB over Drainage Ditch?
The structure is 27 ft (8.2 m) long with a longest span of 5 ft (1.5 m) and a deck 48 ft wide.
Who owns US 181 SB over Drainage Ditch?
It is owned by the State Highway Agency.