Mn 58 over Trout Brook

Good

Goodhue County, Minnesota · 2.2 MI S of JCT Csah 9 · Structure no. 25001

Built: 1992; 33 years old
Condition: Good; inspected June 2023
Type: Slab; Concrete Continuous
Length: 133 ft; 3 main spans
Daily traffic: 3,617; 2022 count
Owner: State; State Highway Agency

About this bridge

Mn 58 over Trout Brook is a concrete continuous slab carrying Mn 58 over Trout Brook in Goodhue County, Minnesota. It was built in 1992, so it is 33 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,617 vehicles a day, roughly 11% of them trucks, projected to reach 3,600 by 2042. The structure is 133 ft (40.5 m) long and 46 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

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CarriesMn 58

CrossesTrout Brook

Location2.2 MI S of JCT Csah 9

RouteState Highway 58

CountyGoodhue County

StateMinnesota

Coordinates44.36728, -92.61372

Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	7 Good	Some minor problems.
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionJune 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour within limits of footing or piles

Structural evaluation7: Better than present minimum criteria

Deck geometry6: Equal to present minimum criteria

Waterway adequacy9: Superior to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating87.3 US tons

Inventory rating52.1 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 25 or greater

Structure length133 ft (40.5 m)

Longest span46 ft (14 m)

Deck width46 ft (14.1 m)

Roadway width43 ft (13.1 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,617 (2022)

Projected traffic3,600 by 2042

Trucks11%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed23 mi (37 km)

TollOn a free road

National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency

Maintained byState Highway Agency

Historic statusNot eligible for the National Register of Historic Places

Work proposedNone recorded

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 58 over Trout Brook built?

It was built in 1992, making it 33 years old in 2025.

What condition is Mn 58 over Trout Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does Mn 58 over Trout Brook carry?

About 3,617 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Mn 58 over Trout Brook?

The structure is 133 ft (40.5 m) long with a longest span of 46 ft (14 m) and a deck 46 ft wide.

Who owns Mn 58 over Trout Brook?

It is owned by the State Highway Agency.