Amisigger RD over Deep Creek
FairClackamas County, Oregon · 032 MI SW Boring · Structure no. 06299 015 00048
- Built
- 1957
- 68 years old
- Condition
- Fair
- inspected July 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 156 ft
- 3 main spans
- Daily traffic
- 15,600
- 2018 count
- Owner
- County
- County Highway Agency
About this bridge
Amisigger RD over Deep Creek is a concrete continuous tee beam carrying Amisigger RD over Deep Creek in Clackamas County, Oregon. It was built in 1957, so it is 68 years old, older than the Oregon average of 49.9 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 15,600 vehicles a day, roughly 2% of them trucks, projected to reach 21,100 by 2038. The structure is 156 ft (47.5 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Amisigger RD over Deep Creek built?
It was built in 1957, making it 68 years old in 2025.
What condition is Amisigger RD over Deep 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 July 2024.
How much traffic does Amisigger RD over Deep Creek carry?
About 15,600 vehicles per day (2018 count), of which roughly 2% are trucks.
How long is Amisigger RD over Deep Creek?
The structure is 156 ft (47.5 m) long with a longest span of 66 ft (20.1 m) and a deck 31 ft wide.
Who owns Amisigger RD over Deep Creek?
It is owned by the County Highway Agency.