US Bridges

Mn 56 over Little Cedar River

Fair

Mower County, Minnesota · 1.3 MI W of JCT Csah 7 · Structure no. 50809

Built
2015
10 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
82 ft
1 main span
Daily traffic
2,263
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 56 over Little Cedar River is a prestressed concrete stringer/multi-beam or girder carrying Mn 56 over Little Cedar River in Mower County, Minnesota. It was built in 2015, so it is 10 years old, younger 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 2,263 vehicles a day, roughly 17% of them trucks, projected to reach 2,100 by 2042. The structure is 82 ft (25 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMn 56
CrossesLittle Cedar River
Location1.3 MI W of JCT Csah 7
RouteState Highway 56
CountyMower County
StateMinnesota
Coordinates43.57278, -92.75928
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length82 ft (25 m)
Longest span80 ft (24.4 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,263 (2022)
Projected traffic2,100 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 56 over Little Cedar River built?

It was built in 2015, making it 10 years old in 2025.

What condition is Mn 56 over Little Cedar River 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 September 2023.

How much traffic does Mn 56 over Little Cedar River carry?

About 2,263 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is Mn 56 over Little Cedar River?

The structure is 82 ft (25 m) long with a longest span of 80 ft (24.4 m) and a deck 43 ft wide.

Who owns Mn 56 over Little Cedar River?

It is owned by the State Highway Agency.