Onyx Street over Mill Race Canal
FairLane County, Oregon · Eugene - U of O Campus · Structure no. 20407 000 00005
- Built
- 2007
- 18 years old
- Condition
- Fair
- inspected June 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 65 ft
- 1 main span
- Daily traffic
- 208
- 2010 count
- Owner
- State
- Other State Agency
About this bridge
Onyx Street over Mill Race Canal is a prestressed concrete slab carrying Onyx Street over Mill Race Canal in Lane County, Oregon. It was built in 2007, so it is 18 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 208 vehicles a day, roughly 2% of them trucks, projected to reach 297 by 2030. The structure is 65 ft (19.7 m) long and 38 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 8 Very Good | No problems noted. |
| 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 Onyx Street over Mill Race Canal built?
It was built in 2007, making it 18 years old in 2025.
What condition is Onyx Street over Mill Race Canal 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 June 2024.
How much traffic does Onyx Street over Mill Race Canal carry?
About 208 vehicles per day (2010 count), of which roughly 2% are trucks.
How long is Onyx Street over Mill Race Canal?
The structure is 65 ft (19.7 m) long with a longest span of 65 ft (19.7 m) and a deck 38 ft wide.
Who owns Onyx Street over Mill Race Canal?
It is owned by the Other State Agency.