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Mermet Road over Main Ditch

Massac County, Illinois · rated Fair in the 2025 National Bridge Inventory

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

Mermet Road over Main Ditch in Massac County, Illinois, 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 1988, making it 37 years old at the 2025 inventory.
It carries about 200 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 60 of the 132 inventoried bridges in Massac County rated fair (45.5%); 11 (8.3%) 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	Prestressed concrete multiple box beam
Length	about 121 ft
Location	0.74 E of US 45
NBI structure number	064310300000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I 24 over Or 4 Ft Massac St Pk	1970	31,400	Good
Interstate 24 over Ohio River	1973	31,400	Fair
I 24 over Georges Creek	1971	20,500	Fair
I 24 over E Fork Gurley Ditch	1971	19,800	Good
I 24 EB over Future Park Road	1970	15,700	Good
I 24 WB over Future Park Road	1970	15,700	Good