US Bridges

T 180 over Little Cottonwood River

Good

Brown County, Minnesota · 3.8 MI N of JCT Csah 17 · Structure no. 08J03

Built
1999
26 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
41 ft
3 main spans
Daily traffic
27
1999 count
Owner
County
County Highway Agency

About this bridge

T 180 over Little Cottonwood River is a concrete culvert carrying T 180 over Little Cottonwood River in Brown County, Minnesota. It was built in 1999, so it is 26 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 27 vehicles a day, projected to reach 27 by 2029. The structure is 41 ft (12.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesT 180
CrossesLittle Cottonwood River
Location3.8 MI N of JCT Csah 17
RouteCounty Highway 180
Coordinates44.16209, -94.94059
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length41 ft (12.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27 (1999)
Projected traffic27 by 2029
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was T 180 over Little Cottonwood River built?

It was built in 1999, making it 26 years old in 2025.

What condition is T 180 over Little 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 October 2024.

How much traffic does T 180 over Little Cottonwood River carry?

About 27 vehicles per day (1999 count).

How long is T 180 over Little Cottonwood River?

The structure is 41 ft (12.5 m) long with a longest span of 12 ft (3.7 m).

Who owns T 180 over Little Cottonwood River?

It is owned by the County Highway Agency.