US Bridges

Mn 56 over Stream

Good

Mower County, Minnesota · 0.2 MI W of JCT Csah 7 · Structure no. 50810

Built
2015
10 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
2,182
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 56 over Stream is a prestressed concrete stringer/multi-beam or girder carrying Mn 56 over Stream 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 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 2,182 vehicles a day, roughly 17% of them trucks, projected to reach 2,350 by 2042. The structure is 77 ft (23.5 m) long and 49 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesMn 56
CrossesStream
Location0.2 MI W of JCT Csah 7
RouteState Highway 56
Coordinates43.56539, -92.72337
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.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
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 rating50.4 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length77 ft (23.5 m)
Longest span75 ft (22.9 m)
Deck width49 ft (14.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,182 (2022)
Projected traffic2,350 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 Stream built?

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

What condition is Mn 56 over Stream 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 September 2023.

How much traffic does Mn 56 over Stream carry?

About 2,182 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is Mn 56 over Stream?

The structure is 77 ft (23.5 m) long with a longest span of 75 ft (22.9 m) and a deck 49 ft wide.

Who owns Mn 56 over Stream?

It is owned by the State Highway Agency.