US Bridges

Csah 11 over Zumbro River

Fair

Wabasha County, Minnesota · 0.1 MI E of JCT Csah 6 · Structure no. 6564

Built
1955
70 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
346 ft
4 main spans
Daily traffic
520
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 11 over Zumbro River is a steel continuous stringer/multi-beam or girder carrying Csah 11 over Zumbro River in Wabasha County, Minnesota. It was built in 1955, so it is 70 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 520 vehicles a day, projected to reach 570 by 2038. The structure is 346 ft (105.6 m) long and 33 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesCsah 11
CrossesZumbro River
Location0.1 MI E of JCT Csah 6
RouteCounty Highway 11
CountyWabasha County
StateMinnesota
Coordinates44.22225, -92.37212
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating28.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length346 ft (105.6 m)
Longest span100 ft (30.5 m)
Deck width33 ft (10.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic520 (2018)
Projected traffic570 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed14.3 mi (23 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 Zumbro River built?

It was built in 1955, making it 70 years old in 2025.

What condition is Csah 11 over 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 October 2024.

How much traffic does Csah 11 over Zumbro River carry?

About 520 vehicles per day (2018 count).

How long is Csah 11 over Zumbro River?

The structure is 346 ft (105.6 m) long with a longest span of 100 ft (30.5 m) and a deck 33 ft wide.

Who owns Csah 11 over Zumbro River?

It is owned by the County Highway Agency.