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Bridge conditions in Darke County, Ohio

463 inventoried bridges · 2 rated poor · 2025 National Bridge Inventory

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

Darke County tracks close to typical: 2 of its 463 inventoried bridges (0.4%) are rated poor, against a national rate of about 7%.

2 of the 463 bridges in Darke County, Ohio, are rated in poor condition (0.4%) in the 2025 National Bridge Inventory, as of August 20, 2026.
386 bridges (83.4%) are rated good and 75 (16.2%) fair.
The median Darke County bridge was built in 1988.
The busiest poor-rated bridge is Rhynard-fink over North Fork of Stillwater (built 1977), carrying about 797 vehicles a day.

Good 83.4% · Fair 16.2% · Poor 0.4% of 463 bridges

Bridges rated poor

Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.

Bridge	Built	Vehicles/day	Condition
Rhynard-fink over North Fork of Stillwater	1977	797	Poor
Woods over Ross Lateral	1983	351	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
SR-121 over Greenville Creek	1934	12,951	Good
SR-49 over Greenville Creek	1907	11,293	Good
Usr-36 over SR 571	1969	9,298	Good
SR-49 over Pansing Joint Ditch 433	1989	7,912	Good
SR-49 over Dividing Branch	1994	7,818	Good
SR-49 over Bridge Creek	1989	7,714	Good
SR-49 over Branch of Ludlow Creek	2001	7,385	Good
SR-49 over Ludlow Creek	1999	7,385	Good
SR-49 over Usr 36 and 127	1968	7,190	Good
SR-49 over Feitshams Ditch	1989	7,104	Good

Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.

All of Ohio: Ohio bridge conditions by county · every download on the data page.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.