SR 109 over Unt to Boone Creek
GoodGrays Harbor County, Washington · 8.4 N JCT SR 15 · Structure no. 019567AB0000000
- Built
- 2024
- 1 years old
- Condition
- Good
- inspected December 2024
- Type
- Culvert
- Concrete
- Length
- 28 ft
- 1 main span
- Daily traffic
- 1,372
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
SR 109 over Unt to Boone Creek is a concrete culvert carrying SR 109 over Unt to Boone Creek in Grays Harbor County, Washington. It was built in 2024, so it is 1 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 1,372 vehicles a day, roughly 7% of them trucks, projected to reach 2,276 by 2041. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 28 mi (45 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 109 over Unt to Boone Creek built?
It was built in 2024, making it 1 years old in 2025.
What condition is SR 109 over Unt to Boone 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 December 2024.
How much traffic does SR 109 over Unt to Boone Creek carry?
About 1,372 vehicles per day (2021 count), of which roughly 7% are trucks.
How long is SR 109 over Unt to Boone Creek?
The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m).
Who owns SR 109 over Unt to Boone Creek?
It is owned by the State Highway Agency.