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Ir 75 over Keowee Street

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

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

Ir 75 over Keowee Street in Montgomery 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 8 (very good condition) on the 0-9 scale.
It was built in 2009, making it 16 years old at the 2025 inventory.
It carries about 111,868 vehicles a day (traffic count year 2015).
Its listed owner is the state highway agency.
It is one of 432 of the 633 inventoried bridges in Montgomery County rated good (68.2%); 18 (2.8%) 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 238 ft
Location	.9MI. N. of Jct. SR48
NBI structure number	5708575
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 Cincinnati Street	1966	130,047	Good
Ir-75 over Stewart Street	2011	130,047	Good
Ir-75 over Carillon Blvd Gt Miami R	1965	128,842	Good
Nb/sb Ir-75 over Third St.; CR194A	2014	123,721	Good
Ir-75 over Salem Ave Second First	2014	123,721	Good
Ramp EB35 to NB75 over Rmp=us35e-i75n Un Rmps	1969	122,680	Good