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I 55 over Slough

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

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

I 55 over Slough in Carroll 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 1971, making it 54 years old at the 2025 inventory.
It carries about 8,000 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 93 of the 224 inventoried bridges in Carroll County rated fair (41.5%); 47 (21.0%) 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	Prestressed concrete stringer or multi-beam girder
Length	about 319 ft
Location	4.1 Mi N Holmes Cl
NBI structure number	11000550081699A
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I 55 over Stream	1971	16,000	Good
I 55 over Stream	1963	15,000	Fair
I 55 over Sykes Creek	1963	15,000	Fair
I 55 over Stream	1971	8,000	Good
I 55 over Stream	1971	8,000	Good
I 55 over Slough	1971	8,000	Good