US Bridges

Mn 30 over Stream

Fair

Cottonwood County, Minnesota · 1.6 MI NE of Storden · Structure no. 8662

Built
1948
77 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
751
2021 count
Owner
State
State Highway Agency

About this bridge

Mn 30 over Stream is a concrete culvert carrying Mn 30 over Stream in Cottonwood County, Minnesota. It was built in 1948, so it is 77 years old, older 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 751 vehicles a day, roughly 13% of them trucks, projected to reach 1,050 by 2041. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMn 30
CrossesStream
Location1.6 MI NE of Storden
RouteState Highway 30
CountyCottonwood County
StateMinnesota
Coordinates44.04598, -95.29455
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 inspectionNovember 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (6.9 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 traffic751 (2021)
Projected traffic1,050 by 2041
Trucks13%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$93 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 30 over Stream built?

It was built in 1948, making it 77 years old in 2025.

What condition is Mn 30 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 November 2023.

How much traffic does Mn 30 over Stream carry?

About 751 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is Mn 30 over Stream?

The structure is 23 ft (6.9 m) long with a longest span of 10 ft (3 m).

Who owns Mn 30 over Stream?

It is owned by the State Highway Agency.