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Township Road 27 over Bridge over Rock Fork

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

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

Township Road 27 over Bridge over Rock Fork in Marion County, Ohio, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 8 (very good condition) on the 0-9 scale.
It was built in 1995, making it 30 years old at the 2025 inventory.
It carries about 153 vehicles a day (traffic count year 2015).
Its listed owner is the county highway agency.
It is one of 139 of the 230 inventoried bridges in Marion County rated good (60.4%); 9 (3.9%) 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	Prestressed concrete multiple box beam
Length	about 56 ft
Location	.8 Mile West of Jct SR 4
NBI structure number	5134471
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
SR 95 over Graves Creek	1965	23,882	Fair
SR 309 over Grave Creek	1998	13,059	Good
US 23 over over Sr98-0011	1965	11,517	Good
US 23 over over Sr98-0013	1965	11,517	Good
US 23 over Cauquaw CR	1965	11,517	Good
US 23 over Cauquaw CR	1965	11,517	Good