HWY 81 SB over HWY 51
GoodMarion County, Oregon · 018 MI S Aurora · Structure no. 07657 01E 02726
- Built
- 1954
- 71 years old
- Condition
- Good
- inspected August 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 157 ft
- 3 main spans
- Daily traffic
- 7,148
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
HWY 81 SB over HWY 51 is a concrete continuous tee beam carrying HWY 81 SB over HWY 51 in Marion County, Oregon. It was built in 1954, so it is 71 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 7,148 vehicles a day, roughly 9% of them trucks, projected to reach 7,200 by 2042. The structure is 157 ft (47.9 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was HWY 81 SB over HWY 51 built?
It was built in 1954, making it 71 years old in 2025.
What condition is HWY 81 SB over HWY 51 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 August 2023.
How much traffic does HWY 81 SB over HWY 51 carry?
About 7,148 vehicles per day (2022 count), of which roughly 9% are trucks.
How long is HWY 81 SB over HWY 51?
The structure is 157 ft (47.9 m) long with a longest span of 66 ft (20.1 m) and a deck 31 ft wide.
Who owns HWY 81 SB over HWY 51?
It is owned by the State Highway Agency.