US Bridges

Mn 9 over Cd #2

Fair

Clay County, Minnesota · 3.0 MI N of JCT TH 10 · Structure no. 14X08

Built
2011
14 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
2,085
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 9 over Cd #2 is a concrete culvert carrying Mn 9 over Cd #2 in Clay County, Minnesota. It was built in 2011, so it is 14 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 2,085 vehicles a day, roughly 24% of them trucks, projected to reach 1,900 by 2042. The structure is 27 ft (8.3 m) long. If it were closed, the detour would be 13 mi (21 km).

Location

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CarriesMn 9
CrossesCd #2
Location3.0 MI N of JCT TH 10
RouteState Highway 9
CountyClay County
StateMinnesota
Coordinates46.92001, -96.50581
Functional classRural Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
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 alignment8: Equal to present desirable 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 traffic2,085 (2022)
Projected traffic1,900 by 2042
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 Mn 9 over Cd #2 built?

It was built in 2011, making it 14 years old in 2025.

What condition is Mn 9 over Cd #2 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 Mn 9 over Cd #2 carry?

About 2,085 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is Mn 9 over Cd #2?

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

Who owns Mn 9 over Cd #2?

It is owned by the State Highway Agency.