US Bridges

Mn 60 over Csah 6

Fair

Blue Earth County, Minnesota · In Lake Crystal · Structure no. 07003

Built
1967
58 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
207 ft
3 main spans
Daily traffic
10,148
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 60 over Csah 6 is a steel continuous stringer/multi-beam or girder carrying Mn 60 over Csah 6 in Blue Earth County, Minnesota. It was built in 1967, so it is 58 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 5 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 10,148 vehicles a day, roughly 18% of them trucks, projected to reach 10,700 by 2042. The structure is 207 ft (63.1 m) long and 80 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMn 60
CrossesCsah 6
LocationIn Lake Crystal
RouteState Highway 60
CountyBlue Earth County
StateMinnesota
Coordinates44.10685, -94.22616
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length207 ft (63.1 m)
Longest span80 ft (24.3 m)
Deck width80 ft (24.3 m)
Roadway width60 ft (18.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,148 (2022)
Projected traffic10,700 by 2042
Trucks18%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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$1,000 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mn 60 over Csah 6 built?

It was built in 1967, making it 58 years old in 2025.

What condition is Mn 60 over Csah 6 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 April 2024.

How much traffic does Mn 60 over Csah 6 carry?

About 10,148 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is Mn 60 over Csah 6?

The structure is 207 ft (63.1 m) long with a longest span of 80 ft (24.3 m) and a deck 80 ft wide.

Who owns Mn 60 over Csah 6?

It is owned by the State Highway Agency.