Every bridge in San Juan County, Washington
13 inventoried bridges, busiest first
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- San Juan County, Washington, has 13 bridges in the 2025 National Bridge Inventory: 4 rated good, 9 fair, and 0 poor (as of ).
- This index lists every one of them, busiest first; each links to its own condition record.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 20 Extension over Friday Hbr-san Juan Chan | 1968 | 2,587 | Fair |
| SR 20 Extension over Friday Hbr-san Juan Chan | 2005 | 2,587 | Good |
| SR 20 over Harney Channel | 1959 | 2,322 | Good |
| SR 20 over Harney Channel | 1979 | 2,150 | Fair |
| Deer Harbor Road over Crow Valley Drainage | 2001 | 1,826 | Fair |
| Orcas to Olga road over Cascade Creek | 1921 | 1,607 | Fair |
| Extension of SR 20 over Upright Channel | 1981 | 1,349 | Fair |
| Extension of SR 20 over Upright Channel | 1981 | 1,349 | Fair |
| Point Lawrence Rd over Buck Bay | 2011 | 939 | Good |
| Channel Road over Cayou Valley Lagoon | 2016 | 516 | Good |
| Ferry Traffic over Blind Bay | 1973 | 308 | Fair |
| Ferry Traffic over Blind Bay | 2004 | 308 | Fair |
| Mt Constitution Rd over Paul Creek | 1929 | 30 | Fair |
Source: FHWA National Bridge Inventory, 2025.
San Juan County bridge conditions · Washington bridges by county.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.