County RD 18 over South Myrtle Creek
PoorDouglas County, Oregon · 10.7 MI E of Myrtle Creek · Structure no. 19C043 18 1071
- Built
- 1961
- 64 years old
- Condition
- Poor
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 102 ft
- 3 main spans
- Daily traffic
- 272
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
County RD 18 over South Myrtle Creek is a steel stringer/multi-beam or girder carrying County RD 18 over South Myrtle Creek in Douglas County, Oregon. It was built in 1961, so it is 64 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 2 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: open, temporary structure in place while original is closed.
It carries about 272 vehicles a day, roughly 7% of them trucks, projected to reach 307 by 2025. The structure is 102 ft (31.1 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 County RD 18 over South Myrtle Creek built?
It was built in 1961, making it 64 years old in 2025.
What condition is County RD 18 over South Myrtle Creek 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 June 2024.
How much traffic does County RD 18 over South Myrtle Creek carry?
About 272 vehicles per day (2020 count), of which roughly 7% are trucks.
How long is County RD 18 over South Myrtle Creek?
The structure is 102 ft (31.1 m) long with a longest span of 40 ft (12.2 m) and a deck 24 ft wide.
Who owns County RD 18 over South Myrtle Creek?
It is owned by the County Highway Agency.