Bridge conditions in Yuba County, California
127 inventoried bridges · 9 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Yuba County tracks close to typical: 9 of its 127 inventoried bridges (7.1%) are rated poor, against a national rate of about 7%.
- 9 of the 127 bridges in Yuba County, California, are rated in poor condition (7.1%) in the 2025 National Bridge Inventory, as of .
- 52 bridges (40.9%) are rated good and 66 (52.0%) fair.
- The median Yuba County bridge was built in 1967.
- The busiest poor-rated bridge is Simpson Ln over Yuba River (built 1957), carrying about 11,630 vehicles a day.
Good 40.9% · Fair 52.0% · Poor 7.1% of 127 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Simpson Ln over Yuba River | 1957 | 11,630 | Poor |
| Doolittle Drive over Hutchinson Creek | 1952 | 3,900 | Poor |
| Gavin Mandry Drive over Hutchinson Creek | 1952 | 3,400 | Poor |
| Warren Shingle Roa over Hutchinson Creek | 1952 | 2,000 | Poor |
| Frenchtown Rd over Dry Creek | 1927 | 490 | Poor |
| Timbuctoo Road over Deep Ravine No 2 | 1903 | 50 | Poor |
| Patrol Road over Reeds Creek Tributary | 1942 | 50 | Poor |
| Patrol Road over Reeds Creek Tributary | 1942 | 50 | Poor |
| Ellis Rd over Simmerly Slough | 1928 | 40 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| State Route 70 over Feather River Blvd | 1956 | 37,500 | Good |
| State Route 70 over Yuba River UP RR Spur | 1960 | 37,500 | Good |
| State Route 70 over W70-beale Road Off-ramp | 1956 | 37,500 | Fair |
| State Route 70 over First Street | 1960 | 37,500 | Good |
| State Route 65 over Grasshopper Slough | 1915 | 25,000 | Fair |
| State Route 65 over Best Slough | 1915 | 25,000 | Good |
| State Route 65 over Dry Creek | 1915 | 22,000 | Good |
| State Route 70 over Clark Diversion Canal | 1967 | 17,200 | Good |
| Fourteenth St over Ellis Lake | 1958 | 16,500 | Good |
| State Route 70 over Honcut Creek | 2023 | 15,700 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of California: California bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.