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CR 54 over Ripple River

Aitkin County, Minnesota · rated Fair in the 2025 National Bridge Inventory

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

CR 54 over Ripple River in Aitkin County, Minnesota, 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 1986, making it 39 years old at the 2025 inventory.
It carries about 658 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 38 of the 96 inventoried bridges in Aitkin County rated fair (39.6%); 8 (8.3%) 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 tee beam
Length	about 62 ft
Location	0.3 Mi E of Jct Csah 1
NBI structure number	01515
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Mn 210 over Ripple River	1980	8,900	Fair
US 169 over Ripple River	1929	8,300	Fair
US 169 over Ripple River	1931	5,627	Fair
Mn 65 over Sandy River	2000	5,300	Fair
Mn 65 over Minnewawa Creek	2009	5,300	Good
Mn 210 over Rice River	1984	4,732	Good