14 S 07 W 18.00: over South Fork Alsea River
Benton County, Oregon · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 14 S 07 W 18.00: over South Fork Alsea River in Benton County, Oregon, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1961, making it 64 years old at the 2025 inventory.
- It carries about 50 vehicles a day (traffic count year 2024).
- It is one of 50 of the 190 inventoried bridges in Benton County rated good (26.3%); 20 (10.5%) 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 2024, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (44.35028, -123.58)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous concrete stringer or multi-beam girder |
| Length | about 115 ft |
| Location | 0.9 miles S of Hwy 34 (MP |
| NBI structure number | 0000000L1439346 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2024 |
| 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 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.