US Bridges

T 412 over Ditch

Good

Norman County, Minnesota · 0.7 MI W of JCT Csah 36 · Structure no. 54J30

Built
2017
8 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
30
2016 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 412 over Ditch is a concrete culvert carrying T 412 over Ditch in Norman County, Minnesota. It was built in 2017, so it is 8 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 30 vehicles a day, projected to reach 30 by 2036. The structure is 22 ft (6.6 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 412
CrossesDitch
Location0.7 MI W of JCT Csah 36
RouteCounty Highway 412
Coordinates47.47017, -96.14677
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 inspectionAugust 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 rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length22 ft (6.6 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 traffic30 (2016)
Projected traffic30 by 2036
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T 412 over Ditch built?

It was built in 2017, making it 8 years old in 2025.

What condition is T 412 over Ditch 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 August 2024.

How much traffic does T 412 over Ditch carry?

About 30 vehicles per day (2016 count).

How long is T 412 over Ditch?

The structure is 22 ft (6.6 m) long with a longest span of 10 ft (3 m).

Who owns T 412 over Ditch?

It is owned by the Town or Township Highway Agency.