Every bridge in Gilliam County, Oregon
35 inventoried bridges, busiest first
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Gilliam County, Oregon, has 35 bridges in the 2025 National Bridge Inventory: 16 rated good, 19 fair, and 0 poor (as of ).
- This index lists every one of them, busiest first; each links to its own condition record.
Source: FHWA National Bridge Inventory, 2025.
Gilliam County bridge conditions · Oregon bridges by county.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.