NW 9TH Street over Sequoia Creek
Benton County, Oregon · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- NW 9TH Street over Sequoia Creek in Benton County, Oregon, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1940 and reconstructed in 1978, making it 85 years old at the 2025 inventory.
- It carries about 19,662 vehicles a day (traffic count year 2020).
- Its listed owner is a city or municipal highway agency.
- It is one of 120 of the 190 inventoried bridges in Benton County rated fair (63.2%); 20 (10.5%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: culvert 5 to 6.
- Its most recent inspection on record is dated July 2024, 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 → (44.59054, -123.25392)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 5 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 26 ft |
| Location | 00.1 Mi N of NW Circle Bl |
| NBI structure number | 07T19 000 00000 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | July 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oregon department of transportation.
Busiest bridges in Benton County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| OR 99W (Hwy 91) SB over Marys River | 1949 | 23,359 | Fair |
| US 20 (Hwy 33) over Wprr | 1960 | 22,606 | Fair |
| OR 34 (Hwy 33) over Willamette River | 1991 | 22,606 | Good |
| Or 34 (hwy 33) over 3rd & 4th Streets | 1992 | 22,606 | Good |
| US 20 (Hwy 33) over Oak Creek | 1960 | 22,169 | Fair |
| NW 9TH St over Dixon CR | 1985 | 20,182 | Fair |
All bridges nearby: Benton County, OR bridge conditions · every bridge in Benton County · Oregon bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.