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Tr 21 over Patterson Branch

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

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

Tr 21 over Patterson Branch 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 5 (fair condition) on the 0-9 scale.
It was built in 1983, making it 42 years old at the 2025 inventory.
It carries about 50 vehicles a day (traffic count year 2020).
Its listed owner is a town or township 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 73 ft
Location	1 Mi West US Rte 45
NBI structure number	064308500000000
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