SR 121 over Beaver Creek
GoodThurston County, Washington · 0.6 E JCT I-5 · Structure no. 080123000000000
- Built
- 1973
- 52 years old
- Condition
- Good
- inspected August 2023
- Type
- Slab
- Concrete Continuous
- Length
- 56 ft
- 3 main spans
- Daily traffic
- 1,780
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 121 over Beaver Creek is a concrete continuous slab carrying SR 121 over Beaver Creek in Thurston County, Washington. It was built in 1973, so it is 52 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 1,780 vehicles a day, roughly 10% of them trucks, projected to reach 2,551 by 2039. The structure is 56 ft (17.1 m) long and 31 ft wide. If it were closed, the detour would be 8.1 mi (13 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. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 121 over Beaver Creek built?
It was built in 1973, making it 52 years old in 2025.
What condition is SR 121 over Beaver 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 August 2023.
How much traffic does SR 121 over Beaver Creek carry?
About 1,780 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is SR 121 over Beaver Creek?
The structure is 56 ft (17.1 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.
Who owns SR 121 over Beaver Creek?
It is owned by the State Highway Agency.