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Mason Road over Plum Creek

Shelby County, Ohio · rated Good in the 2025 National Bridge Inventory

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

Mason Road over Plum Creek in Shelby County, Ohio, 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 1960, making it 65 years old at the 2025 inventory.
It carries about 1,104 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 202 of the 274 inventoried bridges in Shelby County rated good (73.7%); 5 (1.8%) are rated poor.
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


Structure	Continuous steel stringer or multi-beam girder
Length	about 160 ft
Location	.22 M.e. CR.25A
NBI structure number	7541562
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Ir-75 over Great Miami River	2005	46,838	Good
Ir-75 over Tr 39 Kirkwood Road	1960	23,419	Fair
Ir-75 over Tr 39 Kirkwood Road	1960	23,419	Good
Ir-75 over Tr 135 Vandemark Road	1960	23,419	Good
Ir-75 over Tr 135 Vandemark Road	1960	23,419	Good
SR-47 over Ir 75	1961	22,694	Good