US Bridges

Csah 11 over N Br Root River

Fair

Fillmore County, Minnesota · 1.6 MI S of JCT TH 30 · Structure no. 23541

Built
1980
45 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
345 ft
3 main spans
Daily traffic
690
2017 count
Owner
County
County Highway Agency

About this bridge

Csah 11 over N Br Root River is a steel continuous stringer/multi-beam or girder carrying Csah 11 over N Br Root River in Fillmore County, Minnesota. It was built in 1980, so it is 45 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 690 vehicles a day, projected to reach 690 by 2039. The structure is 345 ft (105.3 m) long and 35 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesCsah 11
CrossesN Br Root River
Location1.6 MI S of JCT TH 30
RouteCounty Highway 11
Coordinates43.79788, -92.07665
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 geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34 US tons
Inventory rating26.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length345 ft (105.3 m)
Longest span130 ft (39.6 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic690 (2017)
Projected traffic690 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 11 over N Br Root River built?

It was built in 1980, making it 45 years old in 2025.

What condition is Csah 11 over N 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 11 over N Br Root River carry?

About 690 vehicles per day (2017 count).

How long is Csah 11 over N Br Root River?

The structure is 345 ft (105.3 m) long with a longest span of 130 ft (39.6 m) and a deck 35 ft wide.

Who owns Csah 11 over N Br Root River?

It is owned by the County Highway Agency.