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Hellwarth Road over Twelve Mile Creek

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

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

Hellwarth Road over Twelve Mile Creek in Mercer 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 1970, making it 55 years old at the 2025 inventory.
It carries about 220 vehicles a day (traffic count year 2015).
Its listed owner is the county highway agency.
It is one of 173 of the 327 inventoried bridges in Mercer County rated fair (52.9%); 5 (1.5%) 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	Steel stringer or multi-beam girder
Length	about 61 ft
Location	0.1 Mi N Morrow Road
NBI structure number	5446899
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Usr-127 over Beaver Creek	2008	9,767	Good
Usr-127 over Coldwater Creek	1950	9,115	Good
Usr-127 over Dahlinghaus Ditch	1950	6,978	Good
Usr 33 over Eight Mile Creek	1997	6,514	Good
Usr 33 over Twelve Mile Creek	1962	6,433	Fair
Usr 33 over Branch Eight Mile Creek	1972	6,433	Good