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CR 156 over Maple River

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

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

CR 156 over Maple River in Blue Earth 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 3 (serious condition) on the 0-9 scale.
It was built in 1961, making it 64 years old at the 2025 inventory.
It carries about 141 vehicles a day (traffic count year 2021).
Its listed owner is the county highway agency.
It is one of 12 of the 193 inventoried bridges in Blue Earth County rated poor (6.2%); 12 (6.2%) 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 30 ft
Location	0.1 Mi S of Jct CR 154
NBI structure number	90555
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
US 14 over Minn River; Trail	1976	39,000	Fair
US 14 over Th 169	1976	39,000	Fair
US 169 over Minn R UP RR; Str	1960	34,432	Fair
US 169 over Sibley St	1992	23,523	Fair
US 169 over Off Ramp From US 169	1987	23,523	Fair
Unu 169 over Minn R UP RR; Street	1985	22,949	Poor