US Bridges

CR 57 over Cottonwood River

Good

Redwood County, Minnesota · 0.7 MI N of JCT Csah 4 · Structure no. 64553

Built
1991
34 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
72 ft
1 main span
Daily traffic
25
2011 count
Owner
County
County Highway Agency

About this bridge

CR 57 over Cottonwood River is a prestressed concrete tee beam carrying CR 57 over Cottonwood River in Redwood County, Minnesota. It was built in 1991, so it is 34 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 25 vehicles a day, projected to reach 25 by 2039. The structure is 72 ft (22 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCR 57
CrossesCottonwood River
Location0.7 MI N of JCT Csah 4
RouteCounty Highway 57
Coordinates44.34056, -95.51317
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating57.8 US tons
Inventory rating31.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length72 ft (22 m)
Longest span71 ft (21.6 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2011)
Projected traffic25 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 57 over Cottonwood River built?

It was built in 1991, making it 34 years old in 2025.

What condition is CR 57 over Cottonwood River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does CR 57 over Cottonwood River carry?

About 25 vehicles per day (2011 count).

How long is CR 57 over Cottonwood River?

The structure is 72 ft (22 m) long with a longest span of 71 ft (21.6 m) and a deck 36 ft wide.

Who owns CR 57 over Cottonwood River?

It is owned by the County Highway Agency.