US Bridges

Mn 42 over N Fk Whitewater River

Fair

Wabasha County, Minnesota · 0.6 MI S of JCT Csah 25 · Structure no. 79007

Built
2012
13 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
98 ft
2 main spans
Daily traffic
2,989
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 42 over N Fk Whitewater River is a prestressed concrete stringer/multi-beam or girder carrying Mn 42 over N Fk Whitewater River in Wabasha 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 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 2,989 vehicles a day, roughly 20% of them trucks, projected to reach 3,300 by 2042. The structure is 98 ft (29.9 m) long and 54 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesMn 42
CrossesN Fk Whitewater River
Location0.6 MI S of JCT Csah 25
RouteState Highway 42
Coordinates44.12769, -92.24937
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to 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 rating91.1 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length98 ft (29.9 m)
Longest span48 ft (14.6 m)
Deck width54 ft (16.6 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,989 (2022)
Projected traffic3,300 by 2042
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed11.2 mi (18 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 42 over N Fk Whitewater River built?

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

What condition is Mn 42 over N Fk Whitewater 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 June 2024.

How much traffic does Mn 42 over N Fk Whitewater River carry?

About 2,989 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Mn 42 over N Fk Whitewater River?

The structure is 98 ft (29.9 m) long with a longest span of 48 ft (14.6 m) and a deck 54 ft wide.

Who owns Mn 42 over N Fk Whitewater River?

It is owned by the State Highway Agency.