US Bridges

Csah 22 over Little Cottonwood River

Fair

Brown County, Minnesota · 0.3 MI W of JCT Csah 10 · Structure no. 08514

Built
1975
50 years old
Condition
Fair
inspected November 2023
Type
Channel Beam
Prestressed Concrete
Length
93 ft
3 main spans
Daily traffic
394
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 22 over Little Cottonwood River is a prestressed concrete channel beam carrying Csah 22 over Little Cottonwood River in Brown County, Minnesota. It was built in 1975, so it is 50 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 394 vehicles a day, projected to reach 305 by 2042. The structure is 93 ft (28.4 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCsah 22
CrossesLittle Cottonwood River
Location0.3 MI W of JCT Csah 10
RouteCounty Highway 22
CountyBrown County
StateMinnesota
Coordinates44.19573, -94.671
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70.4 US tons
Inventory rating42.1 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length93 ft (28.4 m)
Longest span31 ft (9.5 m)
Deck width35 ft (10.6 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic394 (2022)
Projected traffic305 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 22 over Little Cottonwood River built?

It was built in 1975, making it 50 years old in 2025.

What condition is Csah 22 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 November 2023.

How much traffic does Csah 22 over Little Cottonwood River carry?

About 394 vehicles per day (2022 count).

How long is Csah 22 over Little Cottonwood River?

The structure is 93 ft (28.4 m) long with a longest span of 31 ft (9.5 m) and a deck 35 ft wide.

Who owns Csah 22 over Little Cottonwood River?

It is owned by the County Highway Agency.