Wirth Road over Calapooia River
GoodLinn County, Oregon · 017 MI E CR418 · Structure no. 20331 041600043
- Built
- 2008
- 17 years old
- Condition
- Good
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 233 ft
- 2 main spans
- Daily traffic
- 130
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Wirth Road over Calapooia River is a prestressed concrete stringer/multi-beam or girder carrying Wirth Road over Calapooia River in Linn County, Oregon. It was built in 2008, so it is 17 years old, younger than the Oregon average of 49.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 130 vehicles a day, roughly 10% of them trucks, projected to reach 190 by 2041. The structure is 233 ft (71 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| 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 Wirth Road over Calapooia River built?
It was built in 2008, making it 17 years old in 2025.
What condition is Wirth Road over Calapooia River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.
How much traffic does Wirth Road over Calapooia River carry?
About 130 vehicles per day (2021 count), of which roughly 10% are trucks.
How long is Wirth Road over Calapooia River?
The structure is 233 ft (71 m) long with a longest span of 132 ft (40.2 m) and a deck 33 ft wide.
Who owns Wirth Road over Calapooia River?
It is owned by the County Highway Agency.