US Bridges

Mn 27 over Eighteen Mile Creek

Fair

Traverse County, Minnesota · 2.9 MI SW of Wheaton · Structure no. 2340

Built
1936
89 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
1,155
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 27 over Eighteen Mile Creek is a concrete culvert carrying Mn 27 over Eighteen Mile Creek in Traverse County, Minnesota. It was built in 1936, so it is 89 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 1,155 vehicles a day, roughly 20% of them trucks, projected to reach 960 by 2042. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMn 27
CrossesEighteen Mile Creek
Location2.9 MI SW of Wheaton
RouteState Highway 27
Coordinates45.78798, -96.54411
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 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum 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 length27 ft (8.2 m)
Longest span12 ft (3.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,155 (2022)
Projected traffic960 by 2042
Trucks20%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 27 over Eighteen Mile Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is Mn 27 over Eighteen Mile Creek 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 27 over Eighteen Mile Creek carry?

About 1,155 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Mn 27 over Eighteen Mile Creek?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.8 m).

Who owns Mn 27 over Eighteen Mile Creek?

It is owned by the State Highway Agency.