US Bridges

Mn 28 over Little Chippewa River

Good

Pope County, Minnesota · 4.5 MI W of Starbuck · Structure no. 5138

Built
1931
94 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
2,000
2019 count
Owner
State
State Highway Agency

About this bridge

Mn 28 over Little Chippewa River is a concrete culvert carrying Mn 28 over Little Chippewa River in Pope County, Minnesota. It was built in 1931, so it is 94 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 33 ft (10.1 m) long. If it were closed, the detour would be 11.2 mi (18 km).

CarriesMn 28
CrossesLittle Chippewa River
Location4.5 MI W of Starbuck
RouteState Highway 28
Coordinates45.61446, -95.6202
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 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 closed11.2 mi (18 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$102 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 28 over Little Chippewa River built?

It was built in 1931, making it 94 years old in 2025.

What condition is Mn 28 over Little 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 Little Chippewa River carry?

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

How long is Mn 28 over Little Chippewa River?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).

Who owns Mn 28 over Little Chippewa River?

It is owned by the State Highway Agency.