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US 49W over Jackson Bayou

Humphreys County, Mississippi · rated Fair in the 2025 National Bridge Inventory

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

US 49W over Jackson Bayou in Humphreys County, Mississippi, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1996, making it 29 years old at the 2025 inventory.
It carries about 2,450 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 38 of the 93 inventoried bridges in Humphreys County rated fair (40.9%); 4 (4.3%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Continuous prestressed concrete stringer or multi-beam girder
Length	about 151 ft
Location	0.9 Mi S Sunflower Cl
NBI structure number	21000494272436A
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US 49W over French Bayou	2004	6,200	Good
US 49W over Lower Auxiliary Channel	2004	3,100	Fair
US 49W over Lower Auxiliary Channel	2004	3,100	Good
US 49W over Atchafalaya Bayou	2004	3,100	Fair
US 49W over Atchafalaya Bayou	2004	3,100	Good
US 49W over Five Mile Lake	2004	3,050	Fair