I-105 (hwy 227) Co over Coburg Road
Lane County, Oregon · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-105 (hwy 227) Co over Coburg Road in Lane County, Oregon, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1961, making it 64 years old at the 2025 inventory.
- It carries about 9,811 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 649 of the 1,011 inventoried bridges in Lane County rated fair (64.2%); 16 (1.6%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: deck 7 to 6, superstructure 6 to 8, substructure 7 to 8.
- Its most recent inspection on record is dated October 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 → (44.06319, -123.07885)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 6 | Satisfactory condition |
| Superstructure | 6 | 8 | Very good condition |
| Substructure | 7 | 8 | Very good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 344 ft |
| Location | 01.9 Mi E OR99W Jct |
| NBI structure number | 08700B227 00197 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oregon department of transportation.
Busiest bridges in Lane County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-5 (hwy 001) over Floodway Ditch | 1961 | 78,731 | Fair |
| Coburg Road over Willamette River | 1950 | 74,362 | Fair |
| Ferry St over UPRR Viaduct/4-6-7 Aves | 1949 | 74,362 | Fair |
| Hwy 69 over River Road | 1970 | 65,196 | Fair |
| Or 126 (hwy 227) over Hwy 228 Cons 1 & 2 | 1964 | 62,257 | Good |
| Or 126 (hwy 227) over 5TH Street | 1964 | 62,257 | Fair |
All bridges nearby: Lane County, OR bridge conditions · every bridge in Lane County · Oregon bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.