Knight Road over Long Tom River
FairLane County, Oregon · 013 MI NE of Noti · Structure no. 39C433433000078
- Built
- 1976
- 49 years old
- Condition
- Fair
- inspected October 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 86 ft
- 1 main span
- Daily traffic
- 984
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Knight Road over Long Tom River is a prestressed concrete box beam or girders - multiple carrying Knight Road over Long Tom River in Lane County, Oregon. It was built in 1976, so it is 49 years old, younger 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 984 vehicles a day, roughly 10% of them trucks, projected to reach 1,134 by 2025. The structure is 86 ft (26.2 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 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 Knight Road over Long Tom River built?
It was built in 1976, making it 49 years old in 2025.
What condition is Knight Road over Long Tom River 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 October 2024.
How much traffic does Knight Road over Long Tom River carry?
About 984 vehicles per day (2020 count), of which roughly 10% are trucks.
How long is Knight Road over Long Tom River?
The structure is 86 ft (26.2 m) long with a longest span of 85 ft (25.9 m) and a deck 32 ft wide.
Who owns Knight Road over Long Tom River?
It is owned by the County Highway Agency.