I-5 over SR 528 4th ST
GoodSnohomish County, Washington · 5.3 N JCT US 2 · Structure no. 0008753A0000000
- Built
- 1971
- 54 years old
- Condition
- Good
- inspected February 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 124 ft
- 3 main spans
- Daily traffic
- 62,168
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-5 over SR 528 4th ST is a concrete continuous tee beam carrying I-5 over SR 528 4th ST in Snohomish County, Washington. It was built in 1971, so it is 54 years old, older than the Washington average of 49.8 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 62,168 vehicles a day, roughly 8% of them trucks, projected to reach 94,393 by 2039. The structure is 124 ft (37.8 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 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 I-5 over SR 528 4th ST built?
It was built in 1971, making it 54 years old in 2025.
What condition is I-5 over SR 528 4th ST 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 February 2023.
How much traffic does I-5 over SR 528 4th ST carry?
About 62,168 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is I-5 over SR 528 4th ST?
The structure is 124 ft (37.8 m) long with a longest span of 55 ft (16.8 m) and a deck 55 ft wide.
Who owns I-5 over SR 528 4th ST?
It is owned by the State Highway Agency.