US Bridges

Mn 60 over Heron Lake Outlet

Good

Jackson County, Minnesota · 4.2 MI SW of JCT TH 86 · Structure no. 32009

Built
2001
24 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
143 ft
2 main spans
Daily traffic
3,050
2018 count
Owner
State
State Highway Agency

About this bridge

Mn 60 over Heron Lake Outlet is a prestressed concrete stringer/multi-beam or girder carrying Mn 60 over Heron Lake Outlet in Jackson County, Minnesota. It was built in 2001, so it is 24 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 3,050 vehicles a day, roughly 18% of them trucks, projected to reach 2,800 by 2038. The structure is 143 ft (43.6 m) long and 44 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesMn 60
CrossesHeron Lake Outlet
Location4.2 MI SW of JCT TH 86
RouteState Highway 60
CountyJackson County
StateMinnesota
Coordinates43.81583, -95.25904
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.4 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length143 ft (43.6 m)
Longest span69 ft (21 m)
Deck width44 ft (13.5 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,050 (2018)
Projected traffic2,800 by 2038
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

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 60 over Heron Lake Outlet built?

It was built in 2001, making it 24 years old in 2025.

What condition is Mn 60 over Heron Lake Outlet 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 July 2024.

How much traffic does Mn 60 over Heron Lake Outlet carry?

About 3,050 vehicles per day (2018 count), of which roughly 18% are trucks.

How long is Mn 60 over Heron Lake Outlet?

The structure is 143 ft (43.6 m) long with a longest span of 69 ft (21 m) and a deck 44 ft wide.

Who owns Mn 60 over Heron Lake Outlet?

It is owned by the State Highway Agency.