William Cannon WB over Onion Creek
FairTravis County, Texas · 1.75 MI E of IH 35 · Structure no. 142270B02811056
- Built
- 2000
- 25 years old
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 492 ft
- 5 main spans
- Daily traffic
- 9,730
- 2010 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
William Cannon WB over Onion Creek is a prestressed concrete stringer/multi-beam or girder carrying William Cannon WB over Onion Creek in Travis County, Texas. It was built in 2000, so it is 25 years old, younger 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 9,730 vehicles a day, roughly 4% of them trucks, projected to reach 11,700 by 2030. The structure is 492 ft (150 m) long and 50 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 |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| 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 William Cannon WB over Onion Creek built?
It was built in 2000, making it 25 years old in 2025.
What condition is William Cannon WB over Onion 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 April 2024.
How much traffic does William Cannon WB over Onion Creek carry?
About 9,730 vehicles per day (2010 count), of which roughly 4% are trucks.
How long is William Cannon WB over Onion Creek?
The structure is 492 ft (150 m) long with a longest span of 98 ft (29.9 m) and a deck 50 ft wide.
Who owns William Cannon WB over Onion Creek?
It is owned by the City or Municipal Highway Agency.