Hillis RD over Grant Creek
FairPosted for loadSnohomish County, Washington · 0.4 NW JCT SR 530 · Structure no. 081068000000000
- Built
- 1978
- 47 years old
- Condition
- Fair
- inspected August 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 85 ft
- 1 main span
- Daily traffic
- 402
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Hillis RD over Grant Creek is a prestressed concrete tee beam carrying Hillis RD over Grant Creek in Snohomish County, Washington. It was built in 1978, so it is 47 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. Its operating status is: posted for load restriction.
It carries about 402 vehicles a day, roughly 15% of them trucks, projected to reach 600 by 2046. The structure is 85 ft (25.9 m) long and 32 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Hillis RD over Grant Creek built?
It was built in 1978, making it 47 years old in 2025.
What condition is Hillis RD over Grant 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 August 2024.
How much traffic does Hillis RD over Grant Creek carry?
About 402 vehicles per day (2023 count), of which roughly 15% are trucks.
How long is Hillis RD over Grant Creek?
The structure is 85 ft (25.9 m) long with a longest span of 82 ft (25.1 m) and a deck 32 ft wide.
Who owns Hillis RD over Grant Creek?
It is owned by the County Highway Agency.