Island Ranch Road over Chapman Slough
FairHarney County, Oregon · 016 Ore 205 FR Glen HWY · Structure no. 21283 C13000163
- Built
- 2009
- 16 years old
- Condition
- Fair
- inspected September 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 47 ft
- 1 main span
- Daily traffic
- 90
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Island Ranch Road over Chapman Slough is a prestressed concrete slab carrying Island Ranch Road over Chapman Slough in Harney County, Oregon. It was built in 2009, so it is 16 years old, younger 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 90 vehicles a day, roughly 10% of them trucks, projected to reach 104 by 2025. The structure is 47 ft (14.3 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| 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 Island Ranch Road over Chapman Slough built?
It was built in 2009, making it 16 years old in 2025.
What condition is Island Ranch Road over Chapman 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 Island Ranch Road over Chapman Slough carry?
About 90 vehicles per day (2020 count), of which roughly 10% are trucks.
How long is Island Ranch Road over Chapman Slough?
The structure is 47 ft (14.3 m) long with a longest span of 46 ft (14 m) and a deck 28 ft wide.
Who owns Island Ranch Road over Chapman Slough?
It is owned by the County Highway Agency.