SR 11 over Oyster Creek
Skagit County, Washington · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 11 over Oyster Creek in Skagit County, Washington, 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 1924, making it 101 years old at the 2025 inventory.
- It carries about 2,472 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 149 of the 256 inventoried bridges in Skagit County rated fair (58.2%); 6 (2.3%) are rated poor.
- 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 → (48.61778, -122.43972)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 85 ft |
| Location | 10.8 N Jct I-5 |
| NBI structure number | 0000825A0000000 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Washington department of transportation.
Busiest bridges in Skagit County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-5 over Skagit River | 1955 | 39,245 | Fair |
| I-5 over RR and Cameron Way | 1954 | 37,729 | Fair |
| I-5 over SR 20 BNSF RR & City St | 1955 | 37,394 | Good |
| I-5 over I-5 Drainage | 1970 | 36,919 | Good |
| I-5 over I-5 Drainage | 1972 | 35,558 | Fair |
| I-5 over Hill Ditch | 1957 | 33,686 | Fair |
All bridges nearby: Skagit County, WA bridge conditions · every bridge in Skagit County · Washington bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.