HWY 1 Conn #5 over HWY 51 SB
FairClackamas County, Oregon · 018 MI N Marion Clack LN · Structure no. 07624B001 28217
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected August 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 295 ft
- 3 main spans
- Daily traffic
- 63,616
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
HWY 1 Conn #5 over HWY 51 SB is a concrete continuous box beam or girders - multiple carrying HWY 1 Conn #5 over HWY 51 SB in Clackamas County, Oregon. It was built in 1971, so it is 54 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 63,616 vehicles a day, roughly 13% of them trucks, projected to reach 77,500 by 2042. The structure is 295 ft (89.9 m) long and 31 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was HWY 1 Conn #5 over HWY 51 SB built?
It was built in 1971, making it 54 years old in 2025.
What condition is HWY 1 Conn #5 over HWY 51 SB 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 August 2024.
How much traffic does HWY 1 Conn #5 over HWY 51 SB carry?
About 63,616 vehicles per day (2022 count), of which roughly 13% are trucks.
How long is HWY 1 Conn #5 over HWY 51 SB?
The structure is 295 ft (89.9 m) long with a longest span of 144 ft (43.9 m) and a deck 31 ft wide.
Who owns HWY 1 Conn #5 over HWY 51 SB?
It is owned by the State Highway Agency.