US Bridges

Csah 6 over Le Sueur River

PoorPosted for load

Waseca County, Minnesota · 0.4 MI E of JCT CR56 · Structure no. 7598

Built
1940
85 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
Daily traffic
55
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 6 over Le Sueur River is a steel stringer/multi-beam or girder carrying Csah 6 over Le Sueur River in Waseca County, Minnesota. It was built in 1940, so it is 85 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 55 vehicles a day, projected to reach 80 by 2041. The structure is 32 ft (9.9 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCsah 6
CrossesLe Sueur River
Location0.4 MI E of JCT CR56
RouteCounty Highway 6
Coordinates43.92061, -93.44907
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating9 US tons
Inventory rating5.4 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length32 ft (9.9 m)
Longest span31 ft (9.3 m)
Deck width32 ft (9.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55 (2021)
Projected traffic80 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$168 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 6 over Le Sueur River built?

It was built in 1940, making it 85 years old in 2025.

What condition is Csah 6 over Le Sueur River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Csah 6 over Le Sueur River carry?

About 55 vehicles per day (2021 count).

How long is Csah 6 over Le Sueur River?

The structure is 32 ft (9.9 m) long with a longest span of 31 ft (9.3 m) and a deck 32 ft wide.

Who owns Csah 6 over Le Sueur River?

It is owned by the County Highway Agency.