US Bridges

T 21 over Encampment River

Good

Lake County, Minnesota · 0.7 MI N of JCT Csah 3 · Structure no. 38J26

Built
2012
13 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
155
2012 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 21 over Encampment River is a concrete culvert carrying T 21 over Encampment River in Lake County, Minnesota. It was built in 2012, so it is 13 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 155 vehicles a day, projected to reach 186 by 2031. The structure is 24 ft (7.4 m) long. If it were closed, the detour would be 14.3 mi (23 km).

CarriesT 21
CrossesEncampment River
Location0.7 MI N of JCT Csah 3
RouteCounty Highway 21
Coordinates47.13739, -91.60126
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 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length24 ft (7.4 m)
Longest span24 ft (7.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic155 (2012)
Projected traffic186 by 2031
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 21 over Encampment River built?

It was built in 2012, making it 13 years old in 2025.

What condition is T 21 over Encampment 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 2023.

How much traffic does T 21 over Encampment River carry?

About 155 vehicles per day (2012 count).

How long is T 21 over Encampment River?

The structure is 24 ft (7.4 m) long with a longest span of 24 ft (7.4 m).

Who owns T 21 over Encampment River?

It is owned by the Town or Township Highway Agency.