IH 35 SB Ml over Onion Creek
FairTravis County, Texas · 2.6 MI N of Hays C/L · Structure no. 142270001601004
- Built
- 1934
- 91 years old, rebuilt 1987
- Condition
- Fair
- inspected November 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 597 ft
- 3 main spans
- Daily traffic
- 70,281
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
IH 35 SB Ml over Onion Creek is a concrete continuous tee beam carrying IH 35 SB Ml over Onion Creek in Travis County, Texas. It was built in 1934 and reconstructed in 1987, so it is 91 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 70,281 vehicles a day, roughly 11% of them trucks, projected to reach 80,240 by 2036. The structure is 597 ft (182 m) long and 71 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 IH 35 SB Ml over Onion Creek built?
It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1987.
What condition is IH 35 SB Ml 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 November 2024.
How much traffic does IH 35 SB Ml over Onion Creek carry?
About 70,281 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is IH 35 SB Ml over Onion Creek?
The structure is 597 ft (182 m) long with a longest span of 85 ft (25.9 m) and a deck 71 ft wide.
Who owns IH 35 SB Ml over Onion Creek?
It is owned by the State Highway Agency.