I840 over I840-ll / SR 106

Williamson County, Tennessee · rated Good in the 2025 National Bridge Inventory

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

• I840 over I840-ll / SR 106 in Williamson County, Tennessee, 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 2001, making it 24 years old at the 2025 inventory.
• It carries about 30,377 vehicles a day (traffic count year 2021).
• Its listed owner is the state highway agency.
• It is one of 341 of the 531 inventoried bridges in Williamson County rated good (64.2%); 16 (3.0%) 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 → (35.82167, -86.85122)

Component ratings

Bridge details

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

Busiest bridges in Williamson County

All bridges nearby: Williamson County, TN bridge conditions · every bridge in Williamson County · Tennessee bridges.

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