SR 503 over Speelyai Creek
GoodCowlitz County, Washington · 2.9 N Clark CO · Structure no. 0004146A0000000
- Built
- 1952
- 73 years old
- Condition
- Good
- inspected August 2024
- Type
- Slab
- Concrete Continuous
- Length
- 86 ft
- 5 main spans
- Daily traffic
- 865
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 503 over Speelyai Creek is a concrete continuous slab carrying SR 503 over Speelyai Creek in Cowlitz County, Washington. It was built in 1952, so it is 73 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 865 vehicles a day, roughly 9% of them trucks, projected to reach 1,111 by 2039. The structure is 86 ft (26.2 m) long and 30 ft wide. If it were closed, the detour would be 67.7 mi (109 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 503 over Speelyai Creek built?
It was built in 1952, making it 73 years old in 2025.
What condition is SR 503 over Speelyai 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 2024.
How much traffic does SR 503 over Speelyai Creek carry?
About 865 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is SR 503 over Speelyai Creek?
The structure is 86 ft (26.2 m) long with a longest span of 28 ft (8.5 m) and a deck 30 ft wide.
Who owns SR 503 over Speelyai Creek?
It is owned by the State Highway Agency.