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Jasper Ln over Best Slough

Yuba County, California · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Jasper Ln over Best Slough in Yuba County, California, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1979, making it 46 years old at the 2025 inventory.
It carries about 570 vehicles a day (traffic count year 2013).
Its listed owner is the county highway agency.
It is one of 52 of the 127 inventoried bridges in Yuba County rated good (40.9%); 9 (7.1%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings

Source: FHWA National Bridge Inventory, 2025 data as reported by the California department of transportation.

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