Bridge conditions in Power County, Idaho

71 inventoried bridges · 1 rated poor · 2025 National Bridge Inventory

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

1 of the 71 bridges the federal inventory lists in Power County are rated poor; the rest split 23 good and 47 fair.

• 1 of the 71 bridges in Power County, Idaho, are rated in poor condition (1.4%) in the 2025 National Bridge Inventory, as of August 20, 2026.
• 23 bridges (32.4%) are rated good and 47 (66.2%) fair.
• The median Power County bridge was built in 1972.
• The busiest poor-rated bridge is Airport Road over I 86 Eb-wb;airport Ic (built 1968), carrying about 1,300 vehicles a day.

Good 32.4% · Fair 66.2% · Poor 1.4% of 71 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 Idaho: Idaho 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.