Old US 20- HWY 033 over W Olalla Slough
PoorPosted for loadLincoln County, Oregon · 0243 M JCT HWY 181 · Structure no. 02275 033F00817
- Built
- 1936
- 89 years old
- Condition
- Poor
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 69 ft
- 3 main spans
- Daily traffic
- 6,800
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Old US 20- HWY 033 over W Olalla Slough is a wood or timber stringer/multi-beam or girder carrying Old US 20- HWY 033 over W Olalla Slough in Lincoln County, Oregon. It was built in 1936, so it is 89 years old, older than the Oregon average of 49.9 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. Its operating status is: posted for load restriction.
It carries about 6,800 vehicles a day, roughly 19% of them trucks, projected to reach 6,900 by 2040. The structure is 69 ft (21 m) long and 35 ft wide. If it were closed, the detour would be 2.5 mi (4 km).
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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 Old US 20- HWY 033 over W Olalla Slough built?
It was built in 1936, making it 89 years old in 2025.
What condition is Old US 20- HWY 033 over W Olalla Slough 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 September 2024.
How much traffic does Old US 20- HWY 033 over W Olalla Slough carry?
About 6,800 vehicles per day (2020 count), of which roughly 19% are trucks.
How long is Old US 20- HWY 033 over W Olalla Slough?
The structure is 69 ft (21 m) long with a longest span of 23 ft (7 m) and a deck 35 ft wide.
Who owns Old US 20- HWY 033 over W Olalla Slough?
It is owned by the County Highway Agency.