US 101 over Half Bridge
FairPacific County, Washington · 25.4 N JCT SR 4 · Structure no. 0007380A0000000
- Built
- 1963
- 62 years old
- Condition
- Fair
- inspected September 2024
- Type
- Slab
- Concrete Continuous
- Length
- 310 ft
- 25 main spans
- Daily traffic
- 6,961
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 101 over Half Bridge is a concrete continuous slab carrying US 101 over Half Bridge in Pacific County, Washington. It was built in 1963, so it is 62 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 6,961 vehicles a day, roughly 5% of them trucks, projected to reach 8,814 by 2039. The structure is 310 ft (94.5 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 101 over Half Bridge built?
It was built in 1963, making it 62 years old in 2025.
What condition is US 101 over Half Bridge 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 September 2024.
How much traffic does US 101 over Half Bridge carry?
About 6,961 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is US 101 over Half Bridge?
The structure is 310 ft (94.5 m) long with a longest span of 20 ft (6.1 m) and a deck 24 ft wide.
Who owns US 101 over Half Bridge?
It is owned by the State Highway Agency.