Bridge conditions in Jones County, South Dakota

37 inventoried bridges · 2 rated poor · 2025 National Bridge Inventory

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

Jones County tracks close to typical: 2 of its 37 inventoried bridges (5.4%) are rated poor, against a national rate of about 7%.

• 2 of the 37 bridges in Jones County, South Dakota, are rated in poor condition (5.4%) in the 2025 National Bridge Inventory, as of August 20, 2026.
• 6 bridges (16.2%) are rated good and 29 (78.4%) fair.
• The median Jones County bridge was built in 1969.
• The busiest poor-rated bridge is 227TH Street over White Clay Creek (built 1965), carrying about 21 vehicles a day.

Good 16.2% · Fair 78.4% · Poor 5.4% of 37 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 South Dakota: South Dakota 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.