Home › Mississippi › Union County › SR 178 over Okannatie W B

SR 178 over Okannatie W B

Union County, Mississippi · rated Poor in the 2025 National Bridge Inventory

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

SR 178 over Okannatie W B in Union County, Mississippi, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1938, making it 87 years old at the 2025 inventory.
It carries about 1,900 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 3 of the 203 inventoried bridges in Union County rated poor (1.5%); 3 (1.5%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 100 ft
Location	4.8 Mi E SR 15
NBI structure number	310017807307120
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
I 22 over Sand Creek	1979	29,000	Good
I 22 over Okannattie Creek W B	1979	29,000	Good
I 22 over Okannattie Creek Relief	1979	29,000	Good
I 22 over Okannattie Creek Relief	1979	29,000	Good
I 22 over Tallahatchie River	1965	28,000	Fair
I 22 over Creek	1976	28,000	Fair