Bigham Road over Antelope Creek
FairJackson County, Oregon · 1.2 MI N of Antelope Road · Structure no. 09994 533 00120
- Built
- 1973
- 52 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 88 ft
- 1 main span
- Daily traffic
- 2,156
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Bigham Road over Antelope Creek is a prestressed concrete stringer/multi-beam or girder carrying Bigham Road over Antelope Creek in Jackson County, Oregon. It was built in 1973, so it is 52 years old, older than the Oregon average of 49.9 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 2,156 vehicles a day, roughly 10% of them trucks, projected to reach 2,509 by 2025. The structure is 88 ft (26.8 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Bigham Road over Antelope Creek built?
It was built in 1973, making it 52 years old in 2025.
What condition is Bigham Road over Antelope 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 June 2023.
How much traffic does Bigham Road over Antelope Creek carry?
About 2,156 vehicles per day (2020 count), of which roughly 10% are trucks.
How long is Bigham Road over Antelope Creek?
The structure is 88 ft (26.8 m) long with a longest span of 82 ft (25 m) and a deck 32 ft wide.
Who owns Bigham Road over Antelope Creek?
It is owned by the County Highway Agency.