West Stayton Rd over West Stayton Ditch
Marion County, Oregon · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- West Stayton Rd over West Stayton Ditch in Marion County, Oregon, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 8 (very good condition) on the 0-9 scale.
- It was built in 1953, making it 72 years old at the 2025 inventory.
- It carries about 1,721 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 84 of the 375 inventoried bridges in Marion County rated good (22.4%); 29 (7.7%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- It was rated fair in the 2024 inventory and is now good (culvert 6 to 8).
- Its most recent inspection on record is dated August 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 → (44.7919, -122.87489)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 6 | 8 | Very good condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 23 ft |
| Location | 1.0 Mi So Shaff Rd (86) |
| NBI structure number | 47C202004000096 |
| Condition class | Good |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | August 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | U: unknown foundation, not evaluated for scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oregon department of transportation.
Busiest bridges in Marion County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Chemawa Road over I-5 (Hwy 1) | 1975 | 102,351 | Fair |
| Chemawa Road over UPRR & Indian School Rd | 1983 | 102,351 | Fair |
| Chemawa Rd over Ulali Drive | 2006 | 102,351 | Fair |
| I-5 (Hwy 1) over State Street | 2000 | 101,907 | Fair |
| I-5 (Hwy 1) over Mill Creek Oflow | 2008 | 101,907 | Fair |
| I-5 (Hwy 1) over Mill Creek Oflow | 2007 | 101,907 | Good |
All bridges nearby: Marion County, OR bridge conditions · every bridge in Marion County · Oregon bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.