Old 99 South over Owl Creek
PoorPosted for loadCowlitz County, Washington · 1.00 S Kelso DR (lv Wye) · Structure no. 081566000000000
- Built
- 1922
- 103 years old, rebuilt 1979
- Condition
- Poor
- inspected August 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 92 ft
- 3 main spans
- Daily traffic
- 6,500
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Old 99 South over Owl Creek is a concrete continuous tee beam carrying Old 99 South over Owl Creek in Cowlitz County, Washington. It was built in 1922 and reconstructed in 1979, so it is 103 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 6,500 vehicles a day, roughly 10% of them trucks, projected to reach 9,000 by 2043. The structure is 92 ft (28 m) long and 54 ft wide. If it were closed, the detour would be 9.9 mi (16 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old 99 South over Owl Creek built?
It was built in 1922, making it 103 years old in 2025. It was reconstructed in 1979.
What condition is Old 99 South over Owl Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.
How much traffic does Old 99 South over Owl Creek carry?
About 6,500 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is Old 99 South over Owl Creek?
The structure is 92 ft (28 m) long with a longest span of 34 ft (10.4 m) and a deck 54 ft wide.
Who owns Old 99 South over Owl Creek?
It is owned by the County Highway Agency.