Scappoose-vernonia over N Fk Scappoose Creek
Columbia County, Oregon · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Scappoose-vernonia over N Fk Scappoose Creek in Columbia County, Oregon, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1956, making it 69 years old at the 2025 inventory.
- It carries about 2,014 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 74 of the 128 inventoried bridges in Columbia County rated fair (57.8%); 12 (9.4%) 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 May 2023, on a 24-month routine inspection cycle.
- It is coded scour critical (NBI item 113 = 3): scour critical: foundations unstable for the assessed or calculated scour.
- 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 → (45.79636, -122.91756)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete tee beam |
| Length | about 119 ft |
| Location | 032 Mi NW Jct Fap1-fas |
| NBI structure number | 13354A114301730 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 3: scour critical: foundations unstable for the assessed or calculated scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oregon department of transportation.
Busiest bridges in Columbia County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 30 (hwy 92) over N Fork Scappoose River | 1980 | 31,178 | Fair |
| US 30 (Hwy 92) over S Fork Scappoose River | 1980 | 31,178 | Fair |
| US 30 (hwy 92) over Honeyman Creek | 1919 | 30,567 | Fair |
| US 30 (Hwy 92) over McNulty Creek | 1996 | 23,995 | Fair |
| Hwy 92 Conn over Columbia River | 1929 | 21,169 | Fair |
| US 30 (Hwy 92) over Milton Creek | 1996 | 20,849 | Fair |
All bridges nearby: Columbia County, OR bridge conditions · every bridge in Columbia County · Oregon bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.