Bridge conditions in Yolo County, California
274 inventoried bridges · 12 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
12 of the 274 bridges the federal inventory lists in Yolo County are rated poor; the rest split 121 good and 141 fair.
- 12 of the 274 bridges in Yolo County, California, are rated in poor condition (4.4%) in the 2025 National Bridge Inventory, as of .
- 121 bridges (44.2%) are rated good and 141 (51.5%) fair.
- The median Yolo County bridge was built in 1969.
- The busiest poor-rated bridge is US Hwy 50 (I-305) over Westacre Rd (built 1951), carrying about 90,000 vehicles a day.
Good 44.2% · Fair 51.5% · Poor 4.4% of 274 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 |
|---|---|---|---|
| US Hwy 50 (I-305) over Westacre Rd | 1951 | 90,000 | Poor |
| NB Jefferson Blvd over Deep Water Canal | 1960 | 17,439 | Poor |
| Industrial Blvd over Deep Water Canal & RR | 1997 | 6,000 | Poor |
| County Road 99S over Interstate 5 | 1973 | 5,000 | Poor |
| County Road 17 over Interstate 5 | 1970 | 5,000 | Poor |
| C Street over UP RR BNSF Ry Amtrak 2ND | 1958 | 4,620 | Poor |
| County Road 6 over Interstate 5 | 1968 | 3,000 | Poor |
| County Road 91 over Interstate 5 | 1968 | 2,500 | Poor |
| County Rd 13 (E10) over Interstate 5 | 1970 | 1,500 | Poor |
| C. R. 29 over Chickahominy Slough | 1917 | 150 | Poor |
| Route 1000 over Dry Run | 1980 | 25 | Poor |
| C. R. 41 over Cache Creek | 1930 | 15 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Interstate 80 over Enterprise Blvd | 1951 | 145,000 | Good |
| Interstate 80 over County Road 32 | 1962 | 135,000 | Good |
| Interstate 80 over Yolo Causeway West | 1962 | 135,000 | Good |
| Interstate 80 over Yolo Causeway East | 1963 | 135,000 | Good |
| Interstate 80 over Bike & Pedestrian Tunnel | 2001 | 128,000 | Fair |
| US Hwy 50 (I-305) over Westacre Rd | 1951 | 90,000 | Poor |
| Interstate 80 EB over U.S. Highway 50 (I-305) | 1969 | 70,000 | Good |
| Interstate 80 WB over Sacramento River (bryte) | 1971 | 43,000 | Fair |
| Interstate 80 EB over Sacramento River (bryte) | 1971 | 43,000 | Fair |
| US 50 (I-305) WB over Jefferson Blvd (old 84) | 1966 | 43,000 | 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.