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Big Plain Circlevi over Opossum Run

Madison County, Ohio · rated Fair in the 2025 National Bridge Inventory

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

Big Plain Circlevi over Opossum Run in Madison County, Ohio, 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 1952 and reconstructed in 1979, making it 73 years old at the 2025 inventory.
It carries about 455 vehicles a day (traffic count year 2015).
Its listed owner is the county highway agency.
It is one of 51 of the 200 inventoried bridges in Madison County rated fair (25.5%); 17 (8.5%) 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 41 ft
Location	9.1 of Mi E of S.R. 56
NBI structure number	4930126
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I-70 over Big Darby Creek	1970	32,533	Good
I-70 over Big Darby Creek	1970	32,533	Good
I-70 over Little Darby Creek	1969	29,528	Good
I-70 over Little Darby Creek	1969	29,528	Good
I-70 over Deer Creek	1969	24,059	Good
I-70 EB over Deer Creek	1969	24,059	Good