US Bridges

Mn 28 over Chippewa River

Good

Pope County, Minnesota · 0.4 MI E of Cyrus · Structure no. 61001

Built
1981
44 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
98 ft
1 main span
Daily traffic
2,000
2019 count
Owner
State
State Highway Agency

About this bridge

Mn 28 over Chippewa River is a prestressed concrete stringer/multi-beam or girder carrying Mn 28 over Chippewa River in Pope County, Minnesota. It was built in 1981, so it is 44 years old, older 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 2,000 vehicles a day, roughly 11% of them trucks, projected to reach 2,050 by 2039. The structure is 98 ft (29.9 m) long and 50 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesMn 28
CrossesChippewa River
Location0.4 MI E of Cyrus
RouteState Highway 28
Coordinates45.61469, -95.72979
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating62.3 US tons
Inventory rating39.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length98 ft (29.9 m)
Longest span95 ft (29 m)
Deck width50 ft (15.3 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2019)
Projected traffic2,050 by 2039
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemYes

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 28 over Chippewa River built?

It was built in 1981, making it 44 years old in 2025.

What condition is Mn 28 over Chippewa 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 September 2024.

How much traffic does Mn 28 over Chippewa River carry?

About 2,000 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is Mn 28 over Chippewa River?

The structure is 98 ft (29.9 m) long with a longest span of 95 ft (29 m) and a deck 50 ft wide.

Who owns Mn 28 over Chippewa River?

It is owned by the State Highway Agency.