Old HWY 99 SW over Scatter Creek
FairThurston County, Washington · West of Tenino near Trac · Structure no. 084133000000000
- Built
- 1923
- 102 years old
- Condition
- Fair
- inspected August 2024
- Type
- Frame
- Concrete Continuous
- Length
- 66 ft
- 3 main spans
- Daily traffic
- 5,042
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Old HWY 99 SW over Scatter Creek is a concrete continuous frame carrying Old HWY 99 SW over Scatter Creek in Thurston County, Washington. It was built in 1923, so it is 102 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 5,042 vehicles a day, roughly 15% of them trucks, projected to reach 7,795 by 2042. The structure is 66 ft (20.1 m) long and 27 ft wide. If it were closed, the detour would be 11.8 mi (19 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old HWY 99 SW over Scatter Creek built?
It was built in 1923, making it 102 years old in 2025.
What condition is Old HWY 99 SW over Scatter Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.
How much traffic does Old HWY 99 SW over Scatter Creek carry?
About 5,042 vehicles per day (2020 count), of which roughly 15% are trucks.
How long is Old HWY 99 SW over Scatter Creek?
The structure is 66 ft (20.1 m) long with a longest span of 20 ft (6.1 m) and a deck 27 ft wide.
Who owns Old HWY 99 SW over Scatter Creek?
It is owned by the City or Municipal Highway Agency.