SR 4 over SR 30

Prentiss County, Mississippi · rated Good in the 2025 National Bridge Inventory

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

SR 4 over SR 30 in Prentiss County, Mississippi, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 2009, making it 16 years old at the 2025 inventory.
It carries about 3,300 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 144 of the 205 inventoried bridges in Prentiss County rated good (70.2%); 7 (3.4%) are rated poor.
Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
Its class is unchanged from 2024 (good), but component ratings moved: deck 8 to 7, substructure 8 to 7.
Its most recent inspection on record is dated February 2024, on a 24-month routine inspection cycle.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings

Component	Rating (2024)	Rating (2025)	FHWA scale meaning
Deck	8	7	Good condition
Superstructure	8	8	Very good condition
Substructure	8	7	Good condition


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 396 ft
Location	SR 4 over SR 30
NBI structure number	310000405914280
Condition class	Good
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	February 2024
Inspection interval (item 91)	24 months
Scour (item 113)	N: not over a waterway

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

Bridge	Built	Vehicles/day	Condition
SR 145 over Stream	1989	11,000	Good
US 45 over Town Creek	1993	8,500	Good
US 45 over Town Creek	1993	8,500	Good
US 45 over Twentymile Creek	1993	7,500	Good
US 45 over Twentymile Creek	1993	7,500	Good
US 45 over Wolf Creek	1993	7,500	Good