US Bridges

CR 86 over Heron Lake Outlet

Fair

Jackson County, Minnesota · 0.7 MI W of JCT CR 82 · Structure no. 32522

Built
1978
47 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
115 ft
3 main spans
Daily traffic
125
2016 count
Owner
County
County Highway Agency

About this bridge

CR 86 over Heron Lake Outlet is a prestressed concrete tee beam carrying CR 86 over Heron Lake Outlet in Jackson County, Minnesota. It was built in 1978, so it is 47 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 125 vehicles a day, projected to reach 125 by 2039. The structure is 115 ft (35.1 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 86
CrossesHeron Lake Outlet
Location0.7 MI W of JCT CR 82
RouteCounty Highway 86
CountyJackson County
StateMinnesota
Coordinates43.83392, -95.2515
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.1 US tons
Inventory rating41.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span38 ft (11.7 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2016)
Projected traffic125 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$220 million
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 86 over Heron Lake Outlet built?

It was built in 1978, making it 47 years old in 2025.

What condition is CR 86 over Heron Lake Outlet in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does CR 86 over Heron Lake Outlet carry?

About 125 vehicles per day (2016 count).

How long is CR 86 over Heron Lake Outlet?

The structure is 115 ft (35.1 m) long with a longest span of 38 ft (11.7 m) and a deck 33 ft wide.

Who owns CR 86 over Heron Lake Outlet?

It is owned by the County Highway Agency.