US Bridges

Mn 32 over Ditch

Fair

Pennington County, Minnesota · 0.5 MI S of ST Hilaire · Structure no. 4811

Built
1928
97 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
2,500
2019 count
Owner
State
State Highway Agency

About this bridge

Mn 32 over Ditch is a concrete culvert carrying Mn 32 over Ditch in Pennington County, Minnesota. It was built in 1928, so it is 97 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 2,500 vehicles a day, roughly 12% of them trucks, projected to reach 2,250 by 2039. The structure is 25 ft (7.5 m) long. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesMn 32
CrossesDitch
Location0.5 MI S of ST Hilaire
RouteState Highway 32
CountyPennington County
StateMinnesota
Coordinates47.9991, -96.21396
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 protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length25 ft (7.5 m)
Longest span10 ft (3.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2019)
Projected traffic2,250 by 2039
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 32 over Ditch built?

It was built in 1928, making it 97 years old in 2025.

What condition is Mn 32 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 June 2023.

How much traffic does Mn 32 over Ditch carry?

About 2,500 vehicles per day (2019 count), of which roughly 12% are trucks.

How long is Mn 32 over Ditch?

The structure is 25 ft (7.5 m) long with a longest span of 10 ft (3.2 m).

Who owns Mn 32 over Ditch?

It is owned by the State Highway Agency.