HWY 141 over Fanno Creek
FairWashington County, Oregon · 2.9 MI S of HWY 143 · Structure no. 04968 141 00573
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected December 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 96 ft
- 4 main spans
- Daily traffic
- 10,362
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
HWY 141 over Fanno Creek is a prestressed concrete slab carrying HWY 141 over Fanno Creek in Washington County, Oregon. It was built in 1965, so it is 60 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 10,362 vehicles a day, roughly 2% of them trucks, projected to reach 17,900 by 2042. The structure is 96 ft (29.3 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 7 Good | Some minor problems. |
| 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 HWY 141 over Fanno Creek built?
It was built in 1965, making it 60 years old in 2025.
What condition is HWY 141 over Fanno 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 December 2023.
How much traffic does HWY 141 over Fanno Creek carry?
About 10,362 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is HWY 141 over Fanno Creek?
The structure is 96 ft (29.3 m) long with a longest span of 27 ft (8.2 m) and a deck 40 ft wide.
Who owns HWY 141 over Fanno Creek?
It is owned by the State Highway Agency.