SR 304 over Sinclair Inlet
Kitsap County, Washington · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 304 over Sinclair Inlet in Kitsap 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 1990, making it 35 years old at the 2025 inventory.
- It carries about 3,600 vehicles a day (traffic count year 2010).
- Its listed owner is the state highway agency.
- It is one of 32 of the 120 inventoried bridges in Kitsap County rated fair (26.7%); 1 (0.8%) 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 → (47.56203, -122.62517)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Steel movable lift |
| Length | about 104 ft |
| Location | 0.4 E Jct SR 303 |
| NBI structure number | 0013663A0000000 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Washington department of transportation.
Busiest bridges in Kitsap County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 303 over Callahan Drive | 1958 | 40,390 | Good |
| SR 303 (waaga Way) over SR 3 | 1981 | 35,743 | Good |
| SR 303 over Silverdale Way NW | 1982 | 35,743 | Good |
| SR 16 Northbound over SR 166 | 1956 | 30,756 | Fair |
| SR 3 over Chico Creek | 2024 | 30,680 | Good |
| SR 3 over Erland Point Rd | 1966 | 29,466 | Good |
All bridges nearby: Kitsap County, WA bridge conditions · every bridge in Kitsap County · Washington bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.