US Bridges

Csah 9 over S Br Mid Fk Zumbro River

FairPosted for load

Dodge County, Minnesota · 0.5 MI S of JCT Csah 16 · Structure no. 20502

Built
1968
57 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
180 ft
3 main spans
Daily traffic
1,119
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 9 over S Br Mid Fk Zumbro River is a steel continuous stringer/multi-beam or girder carrying Csah 9 over S Br Mid Fk Zumbro River in Dodge County, Minnesota. It was built in 1968, so it is 57 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. Its operating status is: posted for load restriction.

It carries about 1,119 vehicles a day, projected to reach 1,200 by 2041. The structure is 180 ft (54.9 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCsah 9
CrossesS Br Mid Fk Zumbro River
Location0.5 MI S of JCT Csah 16
RouteCounty Highway 9
CountyDodge County
StateMinnesota
Coordinates44.07341, -92.81898
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.9 US tons
Inventory rating26.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length180 ft (54.9 m)
Longest span68 ft (20.7 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,119 (2021)
Projected traffic1,200 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Csah 9 over S Br Mid Fk Zumbro River built?

It was built in 1968, making it 57 years old in 2025.

What condition is Csah 9 over S Br Mid Fk Zumbro River 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 July 2023.

How much traffic does Csah 9 over S Br Mid Fk Zumbro River carry?

About 1,119 vehicles per day (2021 count).

How long is Csah 9 over S Br Mid Fk Zumbro River?

The structure is 180 ft (54.9 m) long with a longest span of 68 ft (20.7 m) and a deck 32 ft wide.

Who owns Csah 9 over S Br Mid Fk Zumbro River?

It is owned by the County Highway Agency.