US Bridges

Con 6821 over CO Ditch #47 S

Fair

Clay County, Minnesota · At JCT 34th ST S; I 94 · Structure no. 14X07

Built
2010
15 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
1,452
2021 count
Owner
State
State Highway Agency

About this bridge

Con 6821 over CO Ditch #47 S is a concrete culvert carrying Con 6821 over CO Ditch #47 S in Clay County, Minnesota. It was built in 2010, so it is 15 years old, younger 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 1,452 vehicles a day, projected to reach 1 by 2041. The structure is 27 ft (8.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCon 6821
CrossesCO Ditch #47 S
LocationAt JCT 34th ST S; I 94
RouteInterstate 6821
CountyClay County
StateMinnesota
Coordinates46.84605, -96.71735
Functional classUrban Principal Arterial - Interstate

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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75.6 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length27 ft (8.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,452 (2021)
Projected traffic1 by 2041
Trucks—
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Con 6821 over CO Ditch #47 S built?

It was built in 2010, making it 15 years old in 2025.

What condition is Con 6821 over CO Ditch #47 S 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 2023.

How much traffic does Con 6821 over CO Ditch #47 S carry?

About 1,452 vehicles per day (2021 count).

How long is Con 6821 over CO Ditch #47 S?

The structure is 27 ft (8.3 m) long with a longest span of 12 ft (3.7 m).

Who owns Con 6821 over CO Ditch #47 S?

It is owned by the State Highway Agency.