US Bridges

Csah 3 over S Br Mid Fk Zumbro River

Fair

Olmsted County, Minnesota · 0.1 MI W of JCT Csah 12 · Structure no. 55528

Built
1979
46 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
258 ft
3 main spans
Daily traffic
1,450
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 3 over S Br Mid Fk Zumbro River is a prestressed concrete stringer/multi-beam or girder carrying Csah 3 over S Br Mid Fk Zumbro River in Olmsted County, Minnesota. It was built in 1979, so it is 46 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.

It carries about 1,450 vehicles a day, projected to reach 1,333 by 2038. The structure is 258 ft (78.5 m) long and 47 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCsah 3
CrossesS Br Mid Fk Zumbro River
Location0.1 MI W of JCT Csah 12
RouteCounty Highway 3
CountyOlmsted County
StateMinnesota
Coordinates44.14224, -92.59956
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.3 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length258 ft (78.5 m)
Longest span86 ft (26.1 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,450 (2018)
Projected traffic1,333 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 3 over S Br Mid Fk Zumbro River built?

It was built in 1979, making it 46 years old in 2025.

What condition is Csah 3 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 November 2023.

How much traffic does Csah 3 over S Br Mid Fk Zumbro River carry?

About 1,450 vehicles per day (2018 count).

How long is Csah 3 over S Br Mid Fk Zumbro River?

The structure is 258 ft (78.5 m) long with a longest span of 86 ft (26.1 m) and a deck 47 ft wide.

Who owns Csah 3 over S Br Mid Fk Zumbro River?

It is owned by the County Highway Agency.