US Bridges

M 9 over Bitter Creek

Fair

Goodhue County, Minnesota · In Zumbrota · Structure no. L5394

Built
1930
95 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
1,000
1986 count
Owner
City
City or Municipal Highway Agency

About this bridge

M 9 over Bitter Creek is a concrete culvert carrying M 9 over Bitter Creek in Goodhue County, Minnesota. It was built in 1930, so it is 95 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 1,000 vehicles a day, projected to reach 1,000 by 2029. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesM 9
CrossesBitter Creek
LocationIn Zumbrota
RouteCity Street 9
Coordinates44.29412, -92.66988
Functional classRural 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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.4 US tons
Inventory rating32 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (1986)
Projected traffic1,000 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 9 over Bitter Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is M 9 over Bitter 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 November 2023.

How much traffic does M 9 over Bitter Creek carry?

About 1,000 vehicles per day (1986 count).

How long is M 9 over Bitter Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns M 9 over Bitter Creek?

It is owned by the City or Municipal Highway Agency.