US 183 over Mason Creek
FairWilliamson County, Texas · 5.9 MI S of SH 29 · Structure no. 142460015105015
- Built
- 1927
- 98 years old, rebuilt 1981
- Condition
- Fair
- inspected January 2025
- Type
- Culvert
- Concrete
- Length
- 55 ft
- 5 main spans
- Daily traffic
- 24,549
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
US 183 over Mason Creek is a concrete culvert carrying US 183 over Mason Creek in Williamson County, Texas. It was built in 1927 and reconstructed in 1981, so it is 98 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 24,549 vehicles a day, roughly 5% of them trucks, projected to reach 34,369 by 2041. The structure is 55 ft (16.8 m) long and 76 ft wide. If it were closed, the detour would be 1.2 mi (2 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 183 over Mason Creek built?
It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1981.
What condition is US 183 over Mason Creek 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 2025.
How much traffic does US 183 over Mason Creek carry?
About 24,549 vehicles per day (2021 count), of which roughly 5% are trucks.
How long is US 183 over Mason Creek?
The structure is 55 ft (16.8 m) long with a longest span of 10 ft (3 m) and a deck 76 ft wide.
Who owns US 183 over Mason Creek?
It is owned by the State Highway Agency.