US Bridges

Mn 30 over Ditch

Fair

Pipestone County, Minnesota · 0.8 MI E of Pipestone · Structure no. 2857

Built
1932
93 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
32 ft
2 main spans
Daily traffic
3,091
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 30 over Ditch is a concrete culvert carrying Mn 30 over Ditch in Pipestone County, Minnesota. It was built in 1932, so it is 93 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 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 3,091 vehicles a day, roughly 13% of them trucks, projected to reach 2,550 by 2042. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesMn 30
CrossesDitch
Location0.8 MI E of Pipestone
RouteState Highway 30
CountyPipestone County
StateMinnesota
Coordinates43.99409, -96.29032
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 inspectionSeptember 2023
Inspection intervalevery 24 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 rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length32 ft (9.8 m)
Longest span14 ft (4.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,091 (2022)
Projected traffic2,550 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$234 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 30 over Ditch built?

It was built in 1932, making it 93 years old in 2025.

What condition is Mn 30 over Ditch 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 September 2023.

How much traffic does Mn 30 over Ditch carry?

About 3,091 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Mn 30 over Ditch?

The structure is 32 ft (9.8 m) long with a longest span of 14 ft (4.4 m).

Who owns Mn 30 over Ditch?

It is owned by the State Highway Agency.