Bridge conditions in Stanislaus County, California

386 inventoried bridges · 52 rated poor · 2025 National Bridge Inventory

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

Of the 386 Stanislaus County bridges in the federal inventory, 52 carry a poor rating. That 13.5% share is roughly 2x the national average.

• 52 of the 386 bridges in Stanislaus County, California, are rated in poor condition (13.5%) in the 2025 National Bridge Inventory, as of August 20, 2026.
• 120 bridges (31.1%) are rated good and 214 (55.4%) fair.
• The median Stanislaus County bridge was built in 1963.
• The busiest poor-rated bridge is Briggsmore Road over UP RR & Brink Avenue (built 1976), carrying about 71,797 vehicles a day.

Good 31.1% · Fair 55.4% · Poor 13.5% of 386 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.

Busiest bridges in the county

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.