Napton C-1052 over Alkali CR
FairPosted for loadMalheur County, Oregon · 0.7 MI E JCT ST HWY 201 · Structure no. 45C134105200067
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected October 2023
- Type
- Channel Beam
- Prestressed Concrete
- Length
- 24 ft
- 1 main span
- Daily traffic
- 180
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Napton C-1052 over Alkali CR is a prestressed concrete channel beam carrying Napton C-1052 over Alkali CR in Malheur County, Oregon. It was built in 1965, so it is 60 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. Its operating status is: posted for load restriction.
It carries about 180 vehicles a day, roughly 20% of them trucks, projected to reach 200 by 2025. The structure is 24 ft (7.3 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 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 Napton C-1052 over Alkali CR built?
It was built in 1965, making it 60 years old in 2025.
What condition is Napton C-1052 over Alkali CR 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 October 2023.
How much traffic does Napton C-1052 over Alkali CR carry?
About 180 vehicles per day (2020 count), of which roughly 20% are trucks.
How long is Napton C-1052 over Alkali CR?
The structure is 24 ft (7.3 m) long with a longest span of 20 ft (6.1 m) and a deck 24 ft wide.
Who owns Napton C-1052 over Alkali CR?
It is owned by the County Highway Agency.