Howell Grade RD over Davis Canyon
FairGarfield County, Washington · 1.42 MI NW SR 12 · Structure no. 080617000000000
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 28 ft
- 1 main span
- Daily traffic
- 95
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Howell Grade RD over Davis Canyon is a prestressed concrete stringer/multi-beam or girder carrying Howell Grade RD over Davis Canyon in Garfield County, Washington. It was built in 1979, so it is 46 years old, younger 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 95 vehicles a day, roughly 15% of them trucks, projected to reach 250 by 2040. The structure is 28 ft (8.5 m) long and 29 ft wide. If it were closed, the detour would be 13 mi (21 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 | 7 Good | Some minor problems. |
| 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Howell Grade RD over Davis Canyon built?
It was built in 1979, making it 46 years old in 2025.
What condition is Howell Grade RD over Davis Canyon 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 Howell Grade RD over Davis Canyon carry?
About 95 vehicles per day (2020 count), of which roughly 15% are trucks.
How long is Howell Grade RD over Davis Canyon?
The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 29 ft wide.
Who owns Howell Grade RD over Davis Canyon?
It is owned by the County Highway Agency.