US Bridges

M 12 over Masten Creek

Fair

Dodge County, Minnesota · In Kasson · Structure no. L9192

Built
1969
56 years old
Condition
Fair
inspected October 2021
Type
Culvert
Concrete
Length
52 ft
3 main spans
Daily traffic
270
1993 count
Owner
City
City or Municipal Highway Agency

About this bridge

M 12 over Masten Creek is a concrete culvert carrying M 12 over Masten Creek in Dodge County, Minnesota. It was built in 1969, so it is 56 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 270 vehicles a day, projected to reach 270 by 2029. The structure is 52 ft (15.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesM 12
CrossesMasten Creek
LocationIn Kasson
RouteCity Street 12
Coordinates44.02723, -92.75081
Functional classUrban Local

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 inspectionOctober 2021
Inspection intervalevery 48 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 rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length52 ft (15.7 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic270 (1993)
Projected traffic270 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 M 12 over Masten Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is M 12 over Masten 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 October 2021.

How much traffic does M 12 over Masten Creek carry?

About 270 vehicles per day (1993 count).

How long is M 12 over Masten Creek?

The structure is 52 ft (15.7 m) long with a longest span of 11 ft (3.5 m).

Who owns M 12 over Masten Creek?

It is owned by the City or Municipal Highway Agency.