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Old 3C Highway over Little Miami River

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

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

Old 3C Highway over Little Miami River in Warren County, Ohio, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1989, making it 36 years old at the 2025 inventory.
It carries about 2,776 vehicles a day (traffic count year 2015).
Its listed owner is the county highway agency.
It is one of 115 of the 338 inventoried bridges in Warren County rated fair (34.0%); 18 (5.3%) 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 347 ft
Location	0.09 mi W of CR 23
NBI structure number	8335184
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
IR75 over Millers Creek I&o RR	2010	102,957	Good
IR75 over Shaker Creek	2010	102,957	Fair
Ir 75 over Trb Shaker Cr(clarks Rn)	1960	102,957	Fair
Ir 75 Ramp over over Hendrickson Run	2009	93,130	Good
I75 Ramp over Dicks Creek	1960	91,260	Poor
Rmp-wes Ro Rd-i71s over Ir-71	1973	76,025	Good