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I 55 over SR 570

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

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

I 55 over SR 570 in Pike 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 1959, making it 66 years old at the 2025 inventory.
It carries about 14,500 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 88 of the 211 inventoried bridges in Pike County rated fair (41.7%); 12 (5.7%) 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 concrete single box beam
Length	about 227 ft
Location	I 55 over SR 570
NBI structure number	11000550570180A
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 Minnehaha Creek	1960	22,000	Good
I 55 over Tangipahoa River Trib	1960	18,000	Good
I 55 over Tangipahoa River Relief	1960	18,000	Fair
US 98 over Cnic RR	1940	18,000	Fair
US 98 over Unnamed Stream	1939	18,000	Fair
I 55 over SR 570	1959	14,500	Fair