Sutter County Bridge Report Card
Sutter County scores 58 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Sutter County, California
Sutter County has 121 bridges in the National Bridge Inventory, with 16 rated poor and 6 rated scour-critical. Its poor-condition share of 13.2% is above the 4.9% statewide average. Poor-condition bridges carry about 13,387 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Sutter County a Bridge Condition Exposure Score of 58/100 (F). The county has 121 bridges in the National Bridge Inventory, including 16 in poor condition and 6 rated scour-critical. Poor-condition bridges carry about 13,387 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 | 13.2% | 26.4 |
| Poor-condition traffic exposure | 25 | 2.2% of measured traffic | 1.7 |
| Scour-critical bridge share | 20 | 5.0% | 9.9 |
| Average age vs national baseline | 10 | 58 years vs 48 nationally | 3.9 |
| Traffic-data completeness | 5 | 607,855 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 | 13.2% |
| State Poor-Condition Share | 4.9% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 5.0% |
| Average Bridge Age | 58 years |
| Poor-Condition Traffic Exposure | 13,387 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Sutter County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| State Route 20 over Sutter Bypass | Poor condition + traffic exposure | Poor | 7,600 | 1938 |
| Reclamation RD over Tisdale RD Tisdale Byps | Poor condition + traffic exposure | Poor | 737 | 1964 |
| Nuestro RD over Snake River | Poor condition + traffic exposure | Poor | 325 | 1925 |
| West Butte RD over Cherokee Drain | Poor condition + traffic exposure | Poor | 97 | 1920 |
| Pleasant Grove RD over Sciata Creek | Poor condition + traffic exposure | Poor | 1,190 | 1988 |
| Larkin RD over S Brnch Sutter-butte Cnl | Poor condition + traffic exposure | Poor | 1,159 | 1925 |
| Clark RD over Sutter-butte Cnl S Brnch | Poor condition + traffic exposure | Poor | 690 | 1950 |
| Kent Road over Sutter-butte Canal | Poor condition + traffic exposure | Poor | 389 | 1938 |
| Sacramento AVE over Sutter Bypass E Channel | Poor condition + traffic exposure | Poor | 334 | 1975 |
| Nuestro Road over Sutter Co Extension Cnl | Poor condition + traffic exposure | Poor | 325 | 1940 |
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.