I-5 over S 288th ST
GoodKing County, Washington · 3.8 N JCT SR 18 · Structure no. 0006313A0000000
- Built
- 1961
- 64 years old, rebuilt 1994
- Condition
- Good
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 157 ft
- 3 main spans
- Daily traffic
- 98,173
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-5 over S 288th ST is a prestressed concrete stringer/multi-beam or girder carrying I-5 over S 288th ST in King County, Washington. It was built in 1961 and reconstructed in 1994, so it is 64 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 98,173 vehicles a day, roughly 7% of them trucks, projected to reach 140,916 by 2039. The structure is 157 ft (47.9 m) long and 80 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 S 288th ST built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1994.
What condition is I-5 over S 288th 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 June 2024.
How much traffic does I-5 over S 288th ST carry?
About 98,173 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is I-5 over S 288th ST?
The structure is 157 ft (47.9 m) long with a longest span of 52 ft (15.8 m) and a deck 80 ft wide.
Who owns I-5 over S 288th ST?
It is owned by the State Highway Agency.