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I75n-wh Viaduct over I75*N&RAMP

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

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

I75n-wh Viaduct over I75*N&RAMP in Hamilton 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 6 (satisfactory condition) on the 0-9 scale.
It was built in 1961, making it 64 years old at the 2025 inventory.
It carries about 7,260 vehicles a day (traffic count year 1980).
Its listed owner is the state highway agency.
It is one of 313 of the 782 inventoried bridges in Hamilton County rated fair (40.0%); 22 (2.8%) 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	Continuous steel stringer or multi-beam girder
Length	about 204 ft
Location	.8 Mi S of US 52
NBI structure number	3109518
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Ir 71 over Ohio River Brent Spence	1963	163,386	Fair
Ir 75 over Mill Creek	1947	156,804	Fair
Service Road over Service Rd Ov MILL CR	1986	156,804	Good
Rmp Redbank-i71s over Ir 71	1969	149,533	Fair
Ir 75 over Laidlaw Avenue	1959	148,474	Fair
Ir 75 over Towne Avenue	1958	146,755	Fair