Or 18 (hwy 39) over Jackass Creek
GoodPolk County, Oregon · 2.64 MI N Grande Ronde · Structure no. 19271 039 01916
- Built
- 2005
- 20 years old
- Condition
- Good
- inspected November 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete
- Length
- 41 ft
- 1 main span
- Daily traffic
- 8,996
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Or 18 (hwy 39) over Jackass Creek is a prestressed concrete box beam or girders - single or spread carrying Or 18 (hwy 39) over Jackass Creek in Polk County, Oregon. It was built in 2005, so it is 20 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 8,996 vehicles a day, roughly 4% of them trucks, projected to reach 9,100 by 2042. The structure is 41 ft (12.5 m) long and 38 ft wide. If it were closed, the detour would be 13.7 mi (22 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Or 18 (hwy 39) over Jackass Creek built?
It was built in 2005, making it 20 years old in 2025.
What condition is Or 18 (hwy 39) over Jackass Creek 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 November 2024.
How much traffic does Or 18 (hwy 39) over Jackass Creek carry?
About 8,996 vehicles per day (2022 count), of which roughly 4% are trucks.
How long is Or 18 (hwy 39) over Jackass Creek?
The structure is 41 ft (12.5 m) long with a longest span of 41 ft (12.5 m) and a deck 38 ft wide.
Who owns Or 18 (hwy 39) over Jackass Creek?
It is owned by the State Highway Agency.