US Bridges

Csah 11 over Little Iowa River

Fair

Mower County, Minnesota · 0.4 MI W of JCT Csah 14 · Structure no. 50J18

Built
1998
27 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
280
2016 count
Owner
County
County Highway Agency

About this bridge

Csah 11 over Little Iowa River is a concrete culvert carrying Csah 11 over Little Iowa River in Mower County, Minnesota. It was built in 1998, so it is 27 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 280 vehicles a day, projected to reach 280 by 2039. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCsah 11
CrossesLittle Iowa River
Location0.4 MI W of JCT Csah 14
RouteCounty Highway 11
CountyMower County
StateMinnesota
Coordinates43.5583, -92.5173
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic280 (2016)
Projected traffic280 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Little Iowa River built?

It was built in 1998, making it 27 years old in 2025.

What condition is Csah 11 over Little Iowa 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 July 2024.

How much traffic does Csah 11 over Little Iowa River carry?

About 280 vehicles per day (2016 count).

How long is Csah 11 over Little Iowa River?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Csah 11 over Little Iowa River?

It is owned by the County Highway Agency.