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T 55 over Hill River

Red Lake County, Minnesota · rated Good in the 2025 National Bridge Inventory

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

T 55 over Hill River in Red Lake County, Minnesota, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 8 (very good condition) on the 0-9 scale.
It was built in 1989, making it 36 years old at the 2025 inventory.
It carries about 25 vehicles a day (traffic count year 1986).
Its listed owner is a town or township highway agency.
It is one of 41 of the 59 inventoried bridges in Red Lake County rated good (69.5%); 1 (1.7%) are rated poor.
Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
Its condition class and component ratings are unchanged from the 2024 inventory.
Its most recent inspection on record is dated August 2024, on a 24-month routine inspection cycle.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings

Component	Rating (2024)	Rating (2025)	FHWA scale meaning
Culvert	8	8	Very good condition


Structure	Concrete culvert
Length	about 30 ft
Location	0.2 Mi N of Jct Th 92
NBI structure number	R0241
Condition class	Good
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	August 2024
Inspection interval (item 91)	24 months
Scour (item 113)	8: foundations stable, scour above the top of the footing

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

Bridge	Built	Vehicles/day	Condition
Mn 32 over Clearwater River	1941	4,600	Fair
US 59 over Clearwater River	2013	2,750	Good
US 59 over Hill River	1940	2,150	Fair
US 59 over Lost River	2015	2,150	Fair
Mn 32 over Red Lake River	2003	2,050	Fair
Mn 32 over Cyr Creek	1977	1,034	Good