US 101 over Mill Creek
FairGrays Harbor County, Washington · 4.4 N JCT SR 107 · Structure no. 0003581A0000000
- Built
- 1949
- 76 years old
- Condition
- Fair
- inspected August 2024
- Type
- Slab
- Concrete Continuous
- Length
- 60 ft
- 3 main spans
- Daily traffic
- 6,272
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 101 over Mill Creek is a concrete continuous slab carrying US 101 over Mill Creek in Grays Harbor County, Washington. It was built in 1949, so it is 76 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 6,272 vehicles a day, roughly 6% of them trucks, projected to reach 8,819 by 2039. The structure is 60 ft (18.3 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 101 over Mill Creek built?
It was built in 1949, making it 76 years old in 2025.
What condition is US 101 over Mill 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 US 101 over Mill Creek carry?
About 6,272 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is US 101 over Mill Creek?
The structure is 60 ft (18.3 m) long with a longest span of 22 ft (6.7 m) and a deck 61 ft wide.
Who owns US 101 over Mill Creek?
It is owned by the State Highway Agency.