Hevly RD over Kochs Slough Floodway
FairSnohomish County, Washington · 0.6 NE JCT SR 530 · Structure no. 079669000000000
- Built
- 1981
- 44 years old
- Condition
- Fair
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 52 ft
- 3 main spans
- Daily traffic
- 71
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Hevly RD over Kochs Slough Floodway is a wood or timber stringer/multi-beam or girder carrying Hevly RD over Kochs Slough Floodway in Snohomish County, Washington. It was built in 1981, so it is 44 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 6 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 71 vehicles a day, roughly 5% of them trucks, projected to reach 100 by 2042. The structure is 52 ft (16 m) long and 22 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Hevly RD over Kochs Slough Floodway built?
It was built in 1981, making it 44 years old in 2025.
What condition is Hevly RD over Kochs Slough Floodway 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 March 2024.
How much traffic does Hevly RD over Kochs Slough Floodway carry?
About 71 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is Hevly RD over Kochs Slough Floodway?
The structure is 52 ft (16 m) long with a longest span of 18 ft (5.6 m) and a deck 22 ft wide.
Who owns Hevly RD over Kochs Slough Floodway?
It is owned by the County Highway Agency.