SR 109 over Gillis Sl
FairGrays Harbor County, Washington · 10.1 N JCT US 101 · Structure no. 0004874A0000000
- Built
- 1955
- 70 years old
- Condition
- Fair
- inspected May 2024
- Type
- Slab
- Concrete Continuous
- Length
- 123 ft
- 5 main spans
- Daily traffic
- 6,510
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 109 over Gillis Sl is a concrete continuous slab carrying SR 109 over Gillis Sl in Grays Harbor County, Washington. It was built in 1955, so it is 70 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 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 6,510 vehicles a day, roughly 6% of them trucks, projected to reach 7,199 by 2039. The structure is 123 ft (37.5 m) long and 34 ft wide. If it were closed, the detour would be 19.9 mi (32 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 SR 109 over Gillis Sl built?
It was built in 1955, making it 70 years old in 2025.
What condition is SR 109 over Gillis Sl 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 May 2024.
How much traffic does SR 109 over Gillis Sl carry?
About 6,510 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is SR 109 over Gillis Sl?
The structure is 123 ft (37.5 m) long with a longest span of 27 ft (8.2 m) and a deck 34 ft wide.
Who owns SR 109 over Gillis Sl?
It is owned by the State Highway Agency.