US Bridges

T 143 over Watonwan River

Good

Cottonwood County, Minnesota · 0.6 MI N JCT CR 50 · Structure no. 17J25

Built
2006
19 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
50
2004 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 143 over Watonwan River is a concrete culvert carrying T 143 over Watonwan River in Cottonwood County, Minnesota. It was built in 2006, so it is 19 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 50 vehicles a day, projected to reach 50 by 2029. The structure is 31 ft (9.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesT 143
CrossesWatonwan River
Location0.6 MI N JCT CR 50
RouteCounty Highway 143
Coordinates44.00123, -95.09973
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 protection7 GoodSome minor problems.
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 adequacy7: Better than present minimum 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 spans2
Design loadHS 25 or greater
Structure length31 ft (9.5 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2004)
Projected traffic50 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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 143 over Watonwan River built?

It was built in 2006, making it 19 years old in 2025.

What condition is T 143 over Watonwan 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 143 over Watonwan River carry?

About 50 vehicles per day (2004 count).

How long is T 143 over Watonwan River?

The structure is 31 ft (9.5 m) long with a longest span of 14 ft (4.3 m).

Who owns T 143 over Watonwan River?

It is owned by the Town or Township Highway Agency.