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I 35 over Grindstone River

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

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

I 35 over Grindstone River in Pine County, Minnesota, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 9 (excellent condition) on the 0-9 scale.
It was built in 2024, making it 1 years old at the 2025 inventory.
It carries about 8,150 vehicles a day (traffic count year 2016).
Its listed owner is the state highway agency.
It is one of 110 of the 172 inventoried bridges in Pine County rated good (64.0%); 7 (4.1%) are rated poor.
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


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 104 ft
Location	0.3 Mi N of Jct Th 48
NBI structure number	58828
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I 35 over St Croix Valley RR	2016	11,998	Good
I 35 over St Croix Valley RR	2016	11,998	Good
I 35 over Snake River	2018	10,450	Good
I 35 over Snake River	2018	10,450	Good
I 35 over Mission Creek	1964	8,848	Fair
I 35 over Mission Creek	1964	8,848	Good