SB I-5 over Prairie Creek
GoodThurston County, Washington · 2.4 N Lewis CO · Structure no. 0017465B0000000
- Built
- 2010
- 15 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 80 ft
- 1 main span
- Daily traffic
- 34,754
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SB I-5 over Prairie Creek is a prestressed concrete stringer/multi-beam or girder carrying SB I-5 over Prairie Creek in Thurston County, Washington. It was built in 2010, so it is 15 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 34,754 vehicles a day, roughly 17% of them trucks, projected to reach 50,229 by 2039. The structure is 80 ft (24.4 m) long and 75 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SB I-5 over Prairie Creek built?
It was built in 2010, making it 15 years old in 2025.
What condition is SB I-5 over Prairie Creek 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 September 2024.
How much traffic does SB I-5 over Prairie Creek carry?
About 34,754 vehicles per day (2023 count), of which roughly 17% are trucks.
How long is SB I-5 over Prairie Creek?
The structure is 80 ft (24.4 m) long with a longest span of 80 ft (24.4 m) and a deck 75 ft wide.
Who owns SB I-5 over Prairie Creek?
It is owned by the State Highway Agency.