US Bridges

T 411 over W Br Kettle River

Fair

Carlton County, Minnesota · 0.4 MI W of JCT Csah 22 · Structure no. 95420

Built
1982
43 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
29
1981 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 411 over W Br Kettle River is a concrete culvert carrying T 411 over W Br Kettle River in Carlton County, Minnesota. It was built in 1982, so it is 43 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 29 vehicles a day, projected to reach 29 by 2029. The structure is 25 ft (7.7 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesT 411
CrossesW Br Kettle River
Location0.4 MI W of JCT Csah 22
RouteCounty Highway 411
Coordinates46.63308, -93.0574
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (1981)
Projected traffic29 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$215 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was T 411 over W Br Kettle River built?

It was built in 1982, making it 43 years old in 2025.

What condition is T 411 over W Br Kettle 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 August 2024.

How much traffic does T 411 over W Br Kettle River carry?

About 29 vehicles per day (1981 count).

How long is T 411 over W Br Kettle River?

The structure is 25 ft (7.7 m) long with a longest span of 10 ft (3 m).

Who owns T 411 over W Br Kettle River?

It is owned by the Town or Township Highway Agency.