US Bridges

Csah 12 over S Br Root River

Fair

Fillmore County, Minnesota · 0.4 MI S of JCT Csah 11 · Structure no. 23538

Built
1981
44 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Prestressed Concrete
Length
143 ft
3 main spans
Daily traffic
115
2013 count
Owner
County
County Highway Agency

About this bridge

Csah 12 over S Br Root River is a prestressed concrete tee beam carrying Csah 12 over S Br Root River in Fillmore County, Minnesota. It was built in 1981, so it is 44 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 115 vehicles a day, projected to reach 115 by 2039. The structure is 143 ft (43.7 m) long and 36 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCsah 12
CrossesS Br Root River
Location0.4 MI S of JCT Csah 11
RouteCounty Highway 12
CountyFillmore County
StateMinnesota
Coordinates43.66021, -92.15449
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58.6 US tons
Inventory rating29.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length143 ft (43.7 m)
Longest span47 ft (14.4 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic115 (2013)
Projected traffic115 by 2039
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 12 over S Br Root River built?

It was built in 1981, making it 44 years old in 2025.

What condition is Csah 12 over S Br Root 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 April 2023.

How much traffic does Csah 12 over S Br Root River carry?

About 115 vehicles per day (2013 count).

How long is Csah 12 over S Br Root River?

The structure is 143 ft (43.7 m) long with a longest span of 47 ft (14.4 m) and a deck 36 ft wide.

Who owns Csah 12 over S Br Root River?

It is owned by the County Highway Agency.