Littlerock Road over Salmon Creek
GoodThurston County, Washington · 3.0 NW JCT SR 121 · Structure no. 088678000000000
- Built
- 2014
- 11 years old
- Condition
- Good
- inspected July 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 77 ft
- 1 main span
- Daily traffic
- 6,458
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Littlerock Road over Salmon Creek is a prestressed concrete slab carrying Littlerock Road over Salmon Creek in Thurston County, Washington. It was built in 2014, so it is 11 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 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 6,458 vehicles a day, roughly 15% of them trucks, projected to reach 9,983 by 2042. The structure is 77 ft (23.5 m) long and 45 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 8 Very Good | No problems noted. |
| 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 Littlerock Road over Salmon Creek built?
It was built in 2014, making it 11 years old in 2025.
What condition is Littlerock Road over Salmon 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 July 2024.
How much traffic does Littlerock Road over Salmon Creek carry?
About 6,458 vehicles per day (2020 count), of which roughly 15% are trucks.
How long is Littlerock Road over Salmon Creek?
The structure is 77 ft (23.5 m) long with a longest span of 71 ft (21.6 m) and a deck 45 ft wide.
Who owns Littlerock Road over Salmon Creek?
It is owned by the County Highway Agency.