SMA7217;S. Valley over Ami Trail

Bannock County, Idaho · rated Good in the 2025 National Bridge Inventory

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

• SMA7217;S. Valley over Ami Trail in Bannock County, Idaho, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
• Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
• It was built in 2016, making it 9 years old at the 2025 inventory.
• It carries about 5,200 vehicles a day (traffic count year 2023).
• Its listed owner is a city or municipal highway agency.
• It is one of 48 of the 128 inventoried bridges in Bannock County rated good (37.5%); 6 (4.7%) 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.

View this bridge on a map → (42.83064, -112.40903)

Component ratings

Bridge details

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

Busiest bridges in Bannock County

All bridges nearby: Bannock County, ID bridge conditions · every bridge in Bannock County · Idaho bridges.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.