Riverside DR over Dillenbaugh Creek
FairLewis County, Washington · Riverside Drive · Structure no. 086159000000000
- Built
- 1952
- 73 years old
- Condition
- Fair
- inspected June 2024
- Type
- Slab
- Concrete Continuous
- Length
- 163 ft
- 8 main spans
- Daily traffic
- 3,910
- 2018 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Riverside DR over Dillenbaugh Creek is a concrete continuous slab carrying Riverside DR over Dillenbaugh Creek in Lewis 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 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 3,910 vehicles a day, roughly 7% of them trucks, projected to reach 4,949 by 2040. The structure is 163 ft (49.8 m) long and 34 ft wide. If it were closed, the detour would be 14.3 mi (23 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| 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 Riverside DR over Dillenbaugh Creek built?
It was built in 1952, making it 73 years old in 2025.
What condition is Riverside DR over Dillenbaugh 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 June 2024.
How much traffic does Riverside DR over Dillenbaugh Creek carry?
About 3,910 vehicles per day (2018 count), of which roughly 7% are trucks.
How long is Riverside DR over Dillenbaugh Creek?
The structure is 163 ft (49.8 m) long with a longest span of 23 ft (7 m) and a deck 34 ft wide.
Who owns Riverside DR over Dillenbaugh Creek?
It is owned by the City or Municipal Highway Agency.