US Bridges

Mn 55 over E Br Chippewa River

Fair

Pope County, Minnesota · 2.6 MI NW of Sedan · Structure no. 6143

Built
1935
90 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
2,385
2021 count
Owner
State
State Highway Agency

About this bridge

Mn 55 over E Br Chippewa River is a concrete culvert carrying Mn 55 over E Br Chippewa River in Pope County, Minnesota. It was built in 1935, so it is 90 years old, older 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 2,385 vehicles a day, roughly 21% of them trucks, projected to reach 2,600 by 2041. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMn 55
CrossesE Br Chippewa River
Location2.6 MI NW of Sedan
RouteState Highway 55
CountyPope County
StateMinnesota
Coordinates45.58951, -95.2935
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length22 ft (6.7 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 traffic2,385 (2021)
Projected traffic2,600 by 2041
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$58 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 55 over E Br Chippewa River built?

It was built in 1935, making it 90 years old in 2025.

What condition is Mn 55 over E Br Chippewa 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 September 2024.

How much traffic does Mn 55 over E Br Chippewa River carry?

About 2,385 vehicles per day (2021 count), of which roughly 21% are trucks.

How long is Mn 55 over E Br Chippewa River?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns Mn 55 over E Br Chippewa River?

It is owned by the State Highway Agency.