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CR 78 A Collins Rd over Big Darby Creek

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

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

CR 78 A Collins Rd over Big Darby Creek in Union 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 7 (good condition) on the 0-9 scale.
It was built in 1980 and reconstructed in 2020, making it 45 years old at the 2025 inventory.
It carries about 931 vehicles a day (traffic count year 2015).
Its listed owner is the county highway agency.
It is one of 149 of the 221 inventoried bridges in Union County rated good (67.4%); 8 (3.6%) 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 165 ft
Location	0.01 MI EAST of CR 57
NBI structure number	8031908
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 33 over Ramp over C-133	1988	39,548	Good
Usr 33 over Ramp over SR245	1988	27,926	Good
US 33 over over SR-161	1967	23,398	Fair
US 33 over over SR-161	1967	23,398	Good
US 33 over over CR 114	1966	23,286	Fair
US 33 over over CR 114	1966	23,286	Fair