US 101 over Columbia R
PoorPacific County, Washington · 3.37 S Oregon Line · Structure no. 0007666C0000000
- Built
- 1966
- 59 years old
- Condition
- Poor
- inspected October 2019
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 11,200 ft
- 140 main spans
- Daily traffic
- 23,300
- 2010 count
- Owner
- State
- State Highway Agency
About this bridge
US 101 over Columbia R is a prestressed concrete stringer/multi-beam or girder carrying US 101 over Columbia R in Pacific County, Washington. It was built in 1966, so it is 59 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 23,300 vehicles a day, roughly 6% of them trucks, projected to reach 28,200 by 2030. The structure is 11,200 ft (3,413.8 m) long and 33 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 Columbia R built?
It was built in 1966, making it 59 years old in 2025.
What condition is US 101 over Columbia R in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2019.
How much traffic does US 101 over Columbia R carry?
About 23,300 vehicles per day (2010 count), of which roughly 6% are trucks.
How long is US 101 over Columbia R?
The structure is 11,200 ft (3,413.8 m) long with a longest span of 80 ft (24.4 m) and a deck 33 ft wide.
Who owns US 101 over Columbia R?
It is owned by the State Highway Agency.