Or 99W (hwy 91) over Ash Swale
FairYamhill County, Oregon · In Amity · Structure no. 00416A01W 04489
- Built
- 1922
- 103 years old, rebuilt 1961
- Condition
- Fair
- inspected April 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 300 ft
- 6 main spans
- Daily traffic
- 8,637
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Or 99W (hwy 91) over Ash Swale is a concrete continuous tee beam carrying Or 99W (hwy 91) over Ash Swale in Yamhill County, Oregon. It was built in 1922 and reconstructed in 1961, so it is 103 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 8,637 vehicles a day, roughly 16% of them trucks, projected to reach 9,700 by 2042. The structure is 300 ft (91.4 m) long and 39 ft wide. If it were closed, the detour would be 16.2 mi (26 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 | 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 Or 99W (hwy 91) over Ash Swale built?
It was built in 1922, making it 103 years old in 2025. It was reconstructed in 1961.
What condition is Or 99W (hwy 91) over Ash Swale 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 2023.
How much traffic does Or 99W (hwy 91) over Ash Swale carry?
About 8,637 vehicles per day (2022 count), of which roughly 16% are trucks.
How long is Or 99W (hwy 91) over Ash Swale?
The structure is 300 ft (91.4 m) long with a longest span of 50 ft (15.2 m) and a deck 39 ft wide.
Who owns Or 99W (hwy 91) over Ash Swale?
It is owned by the State Highway Agency.