Chemeketa ST over Mill Creek
FairMarion County, Oregon · 18 to 1900 Block · Structure no. 470234000
- Built
- 1953
- 72 years old
- Condition
- Fair
- inspected August 2023
- Type
- Slab
- Concrete Continuous
- Length
- 63 ft
- 3 main spans
- Daily traffic
- 10,225
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Chemeketa ST over Mill Creek is a concrete continuous slab carrying Chemeketa ST over Mill Creek in Marion County, Oregon. It was built in 1953, so it is 72 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 10,225 vehicles a day, roughly 2% of them trucks, projected to reach 11,400 by 2025. The structure is 63 ft (19.2 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Chemeketa ST over Mill Creek built?
It was built in 1953, making it 72 years old in 2025.
What condition is Chemeketa ST over Mill 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 August 2023.
How much traffic does Chemeketa ST over Mill Creek carry?
About 10,225 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is Chemeketa ST over Mill Creek?
The structure is 63 ft (19.2 m) long with a longest span of 21 ft (6.4 m) and a deck 43 ft wide.
Who owns Chemeketa ST over Mill Creek?
It is owned by the City or Municipal Highway Agency.