Yolo County Bridge Report Card
Yolo County scores 79 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Yolo County, California
Yolo County has 274 bridges in the National Bridge Inventory, with 12 rated poor and 5 rated scour-critical. Its poor-condition share of 4.4% is at or below the 4.9% statewide average. Poor-condition bridges carry about 135,249 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Yolo County a Bridge Condition Exposure Score of 79/100 (C). The county has 274 bridges in the National Bridge Inventory, including 12 in poor condition and 5 rated scour-critical. Poor-condition bridges carry about 135,249 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.
How the Score Breaks Down
| Factor | Weight | County Value | Penalty |
|---|---|---|---|
| Poor-condition bridge share | 40 | 4.4% | 8.8 |
| Poor-condition traffic exposure | 25 | 4.8% of measured traffic | 3.6 |
| Scour-critical bridge share | 20 | 1.8% | 3.6 |
| Average age vs national baseline | 10 | 59 years vs 48 nationally | 4.6 |
| Traffic-data completeness | 5 | 2,836,698 measured daily crossings | 0.0 |
Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.
County Comparisons
| County Poor-Condition Share | 4.4% |
| State Poor-Condition Share | 4.9% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 1.8% |
| Average Bridge Age | 59 years |
| Poor-Condition Traffic Exposure | 135,249 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Yolo County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| C. R. 29 over Chickahominy Slough | Poor condition + traffic exposure | Poor | 150 | 1917 |
| C. R. 41 over Cache Creek | Poor condition + traffic exposure | Poor | 15 | 1930 |
| US HWY 50 (i-305) over Westacre RD | Poor condition + traffic exposure | Poor | 90,000 | 1951 |
| NB Jefferson BLVD over Deep Water Canal | Poor condition + traffic exposure | Poor | 17,439 | 1960 |
| Industrial BLVD over Deep Water Canal & Rr | Poor condition + traffic exposure | Poor | 6,000 | 1997 |
| County Road 17 over Interstate 5 | Poor condition + traffic exposure | Poor | 5,000 | 1970 |
| County Road 99s over Interstate 5 | Poor condition + traffic exposure | Poor | 5,000 | 1973 |
| C Street over Up Rr Bnsf Ry Amtrak 2nd | Poor condition + traffic exposure | Poor | 4,620 | 1958 |
| County Road 6 over Interstate 5 | Poor condition + traffic exposure | Poor | 3,000 | 1968 |
| County Road 91 over Interstate 5 | Poor condition + traffic exposure | Poor | 2,500 | 1968 |
Important safety note
Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.