Or 99E (hwy 58) over Slough
FairLane County, Oregon · 010 MI S Linn Lane CO LN · Structure no. 03940A058 03013
- Built
- 1976
- 49 years old
- Condition
- Fair
- inspected December 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 112 ft
- 2 main spans
- Daily traffic
- 9,803
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Or 99E (hwy 58) over Slough is a prestressed concrete slab carrying Or 99E (hwy 58) over Slough 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 9,803 vehicles a day, roughly 19% of them trucks, projected to reach 9,900 by 2042. The structure is 112 ft (34.1 m) long and 52 ft wide. If it were closed, the detour would be 19.3 mi (31 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 | 8 Very Good | No problems noted. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Or 99E (hwy 58) over Slough built?
It was built in 1976, making it 49 years old in 2025.
What condition is Or 99E (hwy 58) over Slough 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 Or 99E (hwy 58) over Slough carry?
About 9,803 vehicles per day (2022 count), of which roughly 19% are trucks.
How long is Or 99E (hwy 58) over Slough?
The structure is 112 ft (34.1 m) long with a longest span of 56 ft (17.1 m) and a deck 52 ft wide.
Who owns Or 99E (hwy 58) over Slough?
It is owned by the State Highway Agency.