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Bridge conditions in Carroll County, Indiana

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

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

2 of the 160 bridges the federal inventory lists in Carroll County are rated poor; the rest split 61 good and 97 fair.

2 of the 160 bridges in Carroll County, Indiana, are rated in poor condition (1.2%) in the 2025 National Bridge Inventory, as of August 20, 2026.
61 bridges (38.1%) are rated good and 97 (60.6%) fair.
The median Carroll County bridge was built in 1978.
The busiest poor-rated bridge is CR 825W over RATTLESNAKE Creek (built 1972), carrying about 59 vehicles a day.

Good 38.1% · Fair 60.6% · Poor 1.2% of 160 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
CR 825W over RATTLESNAKE Creek	1972	59	Poor
CR 625W over RATTLESNAKE Creek	1973	49	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
US 421 over Deer Creek	2000	10,908	Good
SR 25 SB over Bridge Creek	2012	9,437	Good
SR 25 over Unt Bridge Creek	2013	9,400	Fair
US 421 over Wabash River	1996	9,092	Fair
SR 25 over Robinson Branch	1963	8,297	Fair
Old SR 25 over Deer Creek	1931	8,270	Fair
North Street over US 421	1935	7,683	Fair
SR 25 NB over Bridge Creek	2013	7,251	Good
US 421 over Lake Freeman	2001	7,061	Good
US 421 over Bridge Creek	1986	6,613	Fair

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

All of Indiana: Indiana 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.