US Bridges

Mn 74 over Mid Fk Whitewater River

Good

Winona County, Minnesota · 1.3 MI N of JCT TH 14 · Structure no. 85024

Built
2006
19 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
171 ft
2 main spans
Daily traffic
807
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 74 over Mid Fk Whitewater River is a prestressed concrete stringer/multi-beam or girder carrying Mn 74 over Mid Fk Whitewater River in Winona County, Minnesota. It was built in 2006, so it is 19 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 807 vehicles a day, roughly 7% of them trucks, projected to reach 870 by 2042. The structure is 171 ft (52 m) long and 41 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesMn 74
CrossesMid Fk Whitewater River
Location1.3 MI N of JCT TH 14
RouteState Highway 74
Coordinates44.05103, -92.05171
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.4 US tons
Inventory rating41.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length171 ft (52 m)
Longest span83 ft (25.4 m)
Deck width41 ft (12.5 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic807 (2022)
Projected traffic870 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 74 over Mid Fk Whitewater River built?

It was built in 2006, making it 19 years old in 2025.

What condition is Mn 74 over Mid Fk Whitewater River 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 June 2024.

How much traffic does Mn 74 over Mid Fk Whitewater River carry?

About 807 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Mn 74 over Mid Fk Whitewater River?

The structure is 171 ft (52 m) long with a longest span of 83 ft (25.4 m) and a deck 41 ft wide.

Who owns Mn 74 over Mid Fk Whitewater River?

It is owned by the State Highway Agency.