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I 59 over Allen Branch

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

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

I 59 over Allen Branch in Clarke County, Mississippi, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1965, making it 60 years old at the 2025 inventory.
It carries about 14,000 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 100 of the 222 inventoried bridges in Clarke County rated fair (45.0%); 14 (6.3%) 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 January 2023, on a 24-month routine inspection cycle.
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

Component	Rating (2024)	Rating (2025)	FHWA scale meaning
Culvert	6	6	Satisfactory condition


Structure	Concrete culvert
Length	about 30 ft
Location	1.8 Mi N SR 513
NBI structure number	110005901213500
Condition class	Fair
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	January 2023
Inspection interval (item 91)	24 months
Scour (item 113)	8: foundations stable, scour above the top of the footing

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

Bridge	Built	Vehicles/day	Condition
I 59 over Stream	1965	13,000	Fair
US 45 over Stream	1999	8,000	Good
I 59 over SR 18	1965	7,000	Good
I 59 over SR 18	1965	7,000	Good
I 59 over Stream	1965	7,000	Good
I 59 over Stream	1965	7,000	Good