C116 Red Barn LN over Poison Slough
FairPosted for loadHarney County, Oregon · 011 MI US 20 · Structure no. 25A54 C11600106
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 32 ft
- 2 main spans
- Daily traffic
- 248
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
C116 Red Barn LN over Poison Slough is a wood or timber stringer/multi-beam or girder carrying C116 Red Barn LN over Poison Slough in Harney County, Oregon. It was built in 1969, so it is 56 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 248 vehicles a day, roughly 10% of them trucks, projected to reach 283 by 2025. The structure is 32 ft (9.8 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 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 C116 Red Barn LN over Poison Slough built?
It was built in 1969, making it 56 years old in 2025.
What condition is C116 Red Barn LN over Poison Slough 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 September 2024.
How much traffic does C116 Red Barn LN over Poison Slough carry?
About 248 vehicles per day (2020 count), of which roughly 10% are trucks.
How long is C116 Red Barn LN over Poison Slough?
The structure is 32 ft (9.8 m) long with a longest span of 15 ft (4.6 m) and a deck 25 ft wide.
Who owns C116 Red Barn LN over Poison Slough?
It is owned by the County Highway Agency.