US Bridges

Mn 9 over Stream

Fair

Wilkin County, Minnesota · 1.3 MI NW of Campbell · Structure no. 96722

Built
1991
34 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
46 ft
3 main spans
Daily traffic
737
2021 count
Owner
State
State Highway Agency

About this bridge

Mn 9 over Stream is a concrete culvert carrying Mn 9 over Stream in Wilkin County, Minnesota. It was built in 1991, so it is 34 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 5 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 737 vehicles a day, roughly 32% of them trucks, projected to reach 630 by 2041. The structure is 46 ft (14 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesMn 9
CrossesStream
Location1.3 MI NW of Campbell
RouteState Highway 9
CountyWilkin County
StateMinnesota
Coordinates46.1148, -96.41611
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length46 ft (14 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 traffic737 (2021)
Projected traffic630 by 2041
Trucks32%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Stream built?

It was built in 1991, making it 34 years old in 2025.

What condition is Mn 9 over Stream 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 2024.

How much traffic does Mn 9 over Stream carry?

About 737 vehicles per day (2021 count), of which roughly 32% are trucks.

How long is Mn 9 over Stream?

The structure is 46 ft (14 m) long with a longest span of 12 ft (3.7 m).

Who owns Mn 9 over Stream?

It is owned by the State Highway Agency.