US Bridges

Csah 12 over S Br Root River

Fair

Fillmore County, Minnesota · 0.3 MI E of JCT Csah 17 · Structure no. 23558

Built
1996
29 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
244 ft
3 main spans
Daily traffic
1,750
2017 count
Owner
County
County Highway Agency

About this bridge

Csah 12 over S Br Root River is a steel continuous stringer/multi-beam or girder carrying Csah 12 over S Br Root River in Fillmore County, Minnesota. It was built in 1996, so it is 29 years old, younger 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 1,750 vehicles a day, projected to reach 1,750 by 2039. The structure is 244 ft (74.4 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCsah 12
CrossesS Br Root River
Location0.3 MI E of JCT Csah 17
RouteCounty Highway 12
CountyFillmore County
StateMinnesota
Coordinates43.67025, -92.07768
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
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 2024
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 alignment8: Equal to present desirable criteria
Operating rating83.9 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length244 ft (74.4 m)
Longest span94 ft (28.5 m)
Deck width62 ft (19 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,750 (2017)
Projected traffic1,750 by 2039
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

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 1996, making it 29 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 2024.

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

About 1,750 vehicles per day (2017 count).

How long is Csah 12 over S Br Root River?

The structure is 244 ft (74.4 m) long with a longest span of 94 ft (28.5 m) and a deck 62 ft wide.

Who owns Csah 12 over S Br Root River?

It is owned by the County Highway Agency.