County Road No 810 over Griffin Cr/madrona Lane
Jackson County, Oregon · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Road No 810 over Griffin Cr/madrona Lane in Jackson 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 1959, making it 66 years old at the 2025 inventory.
- It carries about 501 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 243 of the 401 inventoried bridges in Jackson County rated fair (60.6%); 5 (1.2%) 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 June 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 → (42.31609, -122.92432)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 22 ft |
| Location | 0.80 Milepost |
| NBI structure number | 29C162810 00080 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2023 |
| 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 Jackson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-5 (hwy 001) over Medford Viaduct | 1962 | 53,404 | Fair |
| Highland Drive over Bear Creek | 2005 | 53,404 | Good |
| I-5 (hwy 001) over Mcandrews Rd | 1961 | 41,665 | Fair |
| I-5 (hwy 001) over Griffin Creek | 1961 | 40,827 | Fair |
| I-5 (hwy 001) over Jackson Creek | 1961 | 40,827 | Fair |
| I-5 (hwy 001) over Galls CR Front Rd Conn | 1952 | 40,704 | Fair |
All bridges nearby: Jackson County, OR bridge conditions · every bridge in Jackson County · Oregon bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.