Or 99W (hwy 91) over Middle Creek Ash Creek
FairPolk County, Oregon · In Monmouth · Structure no. 07616 01W 06287
- Built
- 1954
- 71 years old
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Concrete Continuous
- Length
- 75 ft
- 3 main spans
- Daily traffic
- 14,546
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Or 99W (hwy 91) over Middle Creek Ash Creek is a concrete continuous stringer/multi-beam or girder carrying Or 99W (hwy 91) over Middle Creek Ash Creek in Polk County, Oregon. It was built in 1954, so it is 71 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 14,546 vehicles a day, roughly 5% of them trucks, projected to reach 16,300 by 2042. The structure is 75 ft (22.9 m) long and 35 ft wide. If it were closed, the detour would be 2.5 mi (4 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 Middle Creek Ash Creek built?
It was built in 1954, making it 71 years old in 2025.
What condition is Or 99W (hwy 91) over Middle Creek Ash 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 2023.
How much traffic does Or 99W (hwy 91) over Middle Creek Ash Creek carry?
About 14,546 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is Or 99W (hwy 91) over Middle Creek Ash Creek?
The structure is 75 ft (22.9 m) long with a longest span of 25 ft (7.6 m) and a deck 35 ft wide.
Who owns Or 99W (hwy 91) over Middle Creek Ash Creek?
It is owned by the State Highway Agency.