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Csah 9 over N Br Upper Iowa River

Mower County, Minnesota · rated Poor in the 2025 National Bridge Inventory

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

Csah 9 over N Br Upper Iowa River in Mower County, Minnesota, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1974, making it 51 years old at the 2025 inventory.
It carries about 65 vehicles a day (traffic count year 2012).
Its listed owner is the county highway agency.
It is one of 28 of the 343 inventoried bridges in Mower County rated poor (8.2%); 28 (8.2%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Prestressed concrete channel beam
Length	about 25 ft
Location	0.1 Mi S of Jct Th 56
NBI structure number	93079
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Con 2589 over I 90	2010	27,200	Good
I 90 over Dobbins Creek	2009	18,300	Good
I 90 over Rose Creek	1959	13,166	Poor
I 90 over Rose Creek	1959	13,166	Fair
I 90 EB over Cedar River	2024	11,649	Good
I 90 over Cedar River	1958	11,649	Fair