US Bridges

M 12 over Stream

PoorClosed to traffic

Goodhue County, Minnesota · In Zumbrota · Structure no. L5901

Built
1935
90 years old
Condition
Poor
inspected November 2009
Type
Stringer/Multi-beam or Girder
Steel
Length
22 ft
1 main span
Daily traffic
60
1986 count
Owner
City
City or Municipal Highway Agency

About this bridge

M 12 over Stream is a steel stringer/multi-beam or girder carrying M 12 over Stream in Goodhue County, Minnesota. It was built in 1935, so it is 90 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 0 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 60 vehicles a day, projected to reach 60 by 2029. The structure is 22 ft (6.6 m) long and 16 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM 12
CrossesStream
LocationIn Zumbrota
RouteCity Street 12
CountyGoodhue County
StateMinnesota
Coordinates44.29629, -92.67355
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure0 FailedOut of service and beyond corrective action.
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionNovember 2009
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourUnknown foundation; not evaluated for scour
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length22 ft (6.6 m)
Longest span22 ft (6.6 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (1986)
Projected traffic60 by 2029
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
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$49 million
NavigationNo navigation control on waterway

Frequently asked questions

When was M 12 over Stream built?

It was built in 1935, making it 90 years old in 2025.

What condition is M 12 over Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2009.

How much traffic does M 12 over Stream carry?

About 60 vehicles per day (1986 count).

How long is M 12 over Stream?

The structure is 22 ft (6.6 m) long with a longest span of 22 ft (6.6 m) and a deck 16 ft wide.

Who owns M 12 over Stream?

It is owned by the City or Municipal Highway Agency.