US Bridges

Csah 6 over Cedar River

FairPosted for load

Mower County, Minnesota · 0.3 MI E of JCT TH 105 · Structure no. 7091

Built
1953
72 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
219 ft
3 main spans
Daily traffic
730
2016 count
Owner
County
County Highway Agency

About this bridge

Csah 6 over Cedar River is a steel continuous stringer/multi-beam or girder carrying Csah 6 over Cedar River in Mower County, Minnesota. It was built in 1953, so it is 72 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. Its operating status is: posted for load restriction.

It carries about 730 vehicles a day, projected to reach 730 by 2039. The structure is 219 ft (66.8 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCsah 6
CrossesCedar River
Location0.3 MI E of JCT TH 105
RouteCounty Highway 6
CountyMower County
StateMinnesota
Coordinates43.51423, -93.0028
Functional classRural Major Collector

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.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.2 US tons
Inventory rating21.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length219 ft (66.8 m)
Longest span85 ft (25.9 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic730 (2016)
Projected traffic730 by 2039
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$591 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 6 over Cedar River built?

It was built in 1953, making it 72 years old in 2025.

What condition is Csah 6 over Cedar 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 June 2024.

How much traffic does Csah 6 over Cedar River carry?

About 730 vehicles per day (2016 count).

How long is Csah 6 over Cedar River?

The structure is 219 ft (66.8 m) long with a longest span of 85 ft (25.9 m) and a deck 29 ft wide.

Who owns Csah 6 over Cedar River?

It is owned by the County Highway Agency.