US Bridges

Mn 11 over Jack Fish Bay

Good

Koochiching County, Minnesota · 4.0 MI E of Ranier · Structure no. 36008

Built
2012
13 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
49 ft
1 main span
Daily traffic
2,016
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 11 over Jack Fish Bay is a prestressed concrete stringer/multi-beam or girder carrying Mn 11 over Jack Fish Bay in Koochiching County, Minnesota. It was built in 2012, so it is 13 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 2,016 vehicles a day, roughly 1% of them trucks, projected to reach 1,650 by 2042. The structure is 49 ft (14.8 m) long and 50 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesMn 11
CrossesJack Fish Bay
Location4.0 MI E of Ranier
RouteState Highway 11
CountyKoochiching County
StateMinnesota
Coordinates48.60136, -93.26857
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating96.8 US tons
Inventory rating53.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length49 ft (14.8 m)
Longest span47 ft (14.2 m)
Deck width50 ft (15.3 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,016 (2022)
Projected traffic1,650 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 11 over Jack Fish Bay built?

It was built in 2012, making it 13 years old in 2025.

What condition is Mn 11 over Jack Fish Bay 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 May 2023.

How much traffic does Mn 11 over Jack Fish Bay carry?

About 2,016 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Mn 11 over Jack Fish Bay?

The structure is 49 ft (14.8 m) long with a longest span of 47 ft (14.2 m) and a deck 50 ft wide.

Who owns Mn 11 over Jack Fish Bay?

It is owned by the State Highway Agency.