Olney Cut-off Rd. over S Fork Klaskanine River
Clatsop County, Oregon · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Olney Cut-off Rd. over S Fork Klaskanine River in Clatsop County, Oregon, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1977, making it 48 years old at the 2025 inventory.
- It carries about 338 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 97 of the 155 inventoried bridges in Clatsop County rated fair (62.6%); 8 (5.2%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated March 2023, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (46.08969, -123.74631)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 83 ft |
| Location | 008 Mi SE of Olney |
| NBI structure number | 11171A060400050 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oregon department of transportation.
Busiest bridges in Clatsop County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US101 (hwy 9) over Columbia River | 1966 | 22,526 | Fair |
| US101 (hwy 9) over Columbia River | 1966 | 22,526 | Fair |
| US101 (hwy 9) over Columbia River & Hwy 92 | 1966 | 22,526 | Fair |
| US101 (Hwy 9) over Youngs Bay | 1964 | 20,338 | Fair |
| US101 (Hwy 9) over Shangri La Creek | 1960 | 16,793 | Fair |
| US101 (Hwy 9) over Neawanna Creek | 1930 | 16,489 | Fair |
All bridges nearby: Clatsop County, OR bridge conditions · every bridge in Clatsop County · Oregon bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.