FM 973 over Onion Creek
FairTravis County, Texas · 1.40 MI S of SH 71 · Structure no. 142270120003024
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 600 ft
- 8 main spans
- Daily traffic
- 27,548
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
FM 973 over Onion Creek is a prestressed concrete stringer/multi-beam or girder carrying FM 973 over Onion Creek in Travis County, Texas. It was built in 1975, so it is 50 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 27,548 vehicles a day, roughly 5% of them trucks, projected to reach 13,950 by 2033. The structure is 600 ft (182.9 m) long and 50 ft wide. If it were closed, the detour would be 1.9 mi (3 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 FM 973 over Onion Creek built?
It was built in 1975, making it 50 years old in 2025.
What condition is FM 973 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 September 2024.
How much traffic does FM 973 over Onion Creek carry?
About 27,548 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is FM 973 over Onion Creek?
The structure is 600 ft (182.9 m) long with a longest span of 80 ft (24.4 m) and a deck 50 ft wide.
Who owns FM 973 over Onion Creek?
It is owned by the State Highway Agency.