Or 99W (hwy 91) over North Fork Ash Creek
PoorPolk County, Oregon · 007 MI N Monmouth · Structure no. 07615 01W 06201
- Built
- 1954
- 71 years old
- Condition
- Poor
- inspected April 2023
- Type
- Slab
- Concrete Continuous
- Length
- 51 ft
- 3 main spans
- Daily traffic
- 14,149
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Or 99W (hwy 91) over North Fork Ash Creek is a concrete continuous slab carrying Or 99W (hwy 91) over North Fork 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 14,149 vehicles a day, roughly 16% of them trucks, projected to reach 14,200 by 2042. The structure is 51 ft (15.5 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Or 99W (hwy 91) over North Fork Ash Creek built?
It was built in 1954, making it 71 years old in 2025.
What condition is Or 99W (hwy 91) over North Fork Ash Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.
How much traffic does Or 99W (hwy 91) over North Fork Ash Creek carry?
About 14,149 vehicles per day (2022 count), of which roughly 16% are trucks.
How long is Or 99W (hwy 91) over North Fork Ash Creek?
The structure is 51 ft (15.5 m) long with a longest span of 19 ft (5.8 m) and a deck 43 ft wide.
Who owns Or 99W (hwy 91) over North Fork Ash Creek?
It is owned by the State Highway Agency.