Nfa A431 over Overflow

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

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

• Nfa A431 over Overflow in Obion 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 1970 and reconstructed in 2010, making it 55 years old at the 2025 inventory.
• It carries about 170 vehicles a day (traffic count year 2020).
• Its listed owner is the county highway agency.
• It is one of 167 of the 381 inventoried bridges in Obion County rated good (43.8%); 11 (2.9%) are rated poor.
• Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
• Its condition class and component ratings are unchanged from the 2024 inventory.
• Its most recent inspection on record is dated March 2023, on a 24-month routine inspection cycle.
• 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 → (36.3439, -89.02289)

Component ratings

Bridge details

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

Busiest bridges in Obion County

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

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