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C135A Dover-county over Duns Run Branch Mill Crk

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

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

C135A Dover-county over Duns Run Branch Mill Crk in Union 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 1976 and reconstructed in 2023, making it 49 years old at the 2025 inventory.
It carries about 160 vehicles a day (traffic count year 2015).
Its listed owner is the county highway agency.
It is one of 64 of the 221 inventoried bridges in Union County rated fair (29.0%); 8 (3.6%) 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 32 ft
Location	1.5 MI EAST of SR 36
NBI structure number	8033587
Condition class	Fair

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