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T 129 over Stream

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

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

T 129 over Stream in Lyon 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 1983, making it 42 years old at the 2025 inventory.
It carries about 15 vehicles a day (traffic count year 1992).
Its listed owner is a town or township highway agency.
It is one of 177 of the 234 inventoried bridges in Lyon County rated good (75.6%); 6 (2.6%) 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 October 2021, on a 48-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 20 ft
Location	0.1 Mi E of Jct CR 67
NBI structure number	95784
Condition class	Good
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	October 2021
Inspection interval (item 91)	48 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
US 59 over Redwood River	1950	9,500	Fair
Mn 19 over Redwood River	1931	8,800	Fair
Mn 19 over Redwood River	1975	8,300	Fair
Mn 23 over Ditch	1999	5,910	Good
Mn 23 over Redwood River	1973	5,204	Fair
US 59 over Redwood R Diversion Chan	1962	5,200	Fair