US Bridges

T 411 over Turtle Creek

Good

Todd County, Minnesota · 0.1 MI E of JCT Csah 25 · Structure no. L7075

Built
1940
85 years old, rebuilt 2016
Condition
Good
inspected September 2023
Type
Culvert
Steel
Length
56 ft
3 main spans
Daily traffic
15
1970 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 411 over Turtle Creek is a steel culvert carrying T 411 over Turtle Creek in Todd County, Minnesota. It was built in 1940 and reconstructed in 2016, so it is 85 years old, older 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 15 vehicles a day, projected to reach 15 by 2029. The structure is 56 ft (17.2 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesT 411
CrossesTurtle Creek
Location0.1 MI E of JCT Csah 25
RouteCounty Highway 411
Coordinates46.04918, -94.81181
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHL 93
Structure length56 ft (17.2 m)
Longest span15 ft (4.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (1970)
Projected traffic15 by 2029
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

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$437.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was T 411 over Turtle Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 2016.

What condition is T 411 over Turtle Creek 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 2023.

How much traffic does T 411 over Turtle Creek carry?

About 15 vehicles per day (1970 count).

How long is T 411 over Turtle Creek?

The structure is 56 ft (17.2 m) long with a longest span of 15 ft (4.7 m).

Who owns T 411 over Turtle Creek?

It is owned by the Town or Township Highway Agency.