I-5 (hwy 1) Conn over HWY 1 Conn
FairMultnomah County, Oregon · 1.5 MI S of Interstate Br · Structure no. 16506 001C30686
- Built
- 1991
- 34 years old
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 1,020 ft
- 7 main spans
- Daily traffic
- 5,420
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I-5 (hwy 1) Conn over HWY 1 Conn is a prestressed concrete continuous stringer/multi-beam or girder carrying I-5 (hwy 1) Conn over HWY 1 Conn in Multnomah County, Oregon. It was built in 1991, so it is 34 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 5,420 vehicles a day, roughly 9% of them trucks, projected to reach 61,300 by 2040. The structure is 1,020 ft (310.9 m) long and 29 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-5 (hwy 1) Conn over HWY 1 Conn built?
It was built in 1991, making it 34 years old in 2025.
What condition is I-5 (hwy 1) Conn over HWY 1 Conn 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 2024.
How much traffic does I-5 (hwy 1) Conn over HWY 1 Conn carry?
About 5,420 vehicles per day (2022 count), of which roughly 9% are trucks.
How long is I-5 (hwy 1) Conn over HWY 1 Conn?
The structure is 1,020 ft (310.9 m) long with a longest span of 130 ft (39.6 m) and a deck 29 ft wide.
Who owns I-5 (hwy 1) Conn over HWY 1 Conn?
It is owned by the State Highway Agency.