US Bridges

Csah 11 over Little Cottonwood River

FairPosted for load

Brown County, Minnesota · 0.7 MI N of JCT Csah 22 · Structure no. 7087

Built
1953
72 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
83 ft
1 main span
Daily traffic
197
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 11 over Little Cottonwood River is a steel stringer/multi-beam or girder carrying Csah 11 over Little Cottonwood River in Brown 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 6 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 197 vehicles a day, projected to reach 185 by 2042. The structure is 83 ft (25.3 m) long and 27 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesCsah 11
CrossesLittle Cottonwood River
Location0.7 MI N of JCT Csah 22
RouteCounty Highway 11
CountyBrown County
StateMinnesota
Coordinates44.20727, -94.59315
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25 US tons
Inventory rating19.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length83 ft (25.3 m)
Longest span80 ft (24.4 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic197 (2022)
Projected traffic185 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 11 over Little Cottonwood River built?

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

What condition is Csah 11 over Little Cottonwood 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 October 2024.

How much traffic does Csah 11 over Little Cottonwood River carry?

About 197 vehicles per day (2022 count).

How long is Csah 11 over Little Cottonwood River?

The structure is 83 ft (25.3 m) long with a longest span of 80 ft (24.4 m) and a deck 27 ft wide.

Who owns Csah 11 over Little Cottonwood River?

It is owned by the County Highway Agency.