US Bridges

Csah 3 over Iosco Creek

Good

Waseca County, Minnesota · 1.0 MI SW of JCT Csah 5 · Structure no. 81J09

Built
2011
14 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
1,168
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 3 over Iosco Creek is a concrete culvert carrying Csah 3 over Iosco Creek in Waseca County, Minnesota. It was built in 2011, so it is 14 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,168 vehicles a day, projected to reach 1,200 by 2042. The structure is 40 ft (12.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCsah 3
CrossesIosco Creek
Location1.0 MI SW of JCT Csah 5
RouteCounty Highway 3
Coordinates44.18289, -93.66332
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75.6 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length40 ft (12.3 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 traffic1,168 (2022)
Projected traffic1,200 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 3 over Iosco Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is Csah 3 over Iosco Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does Csah 3 over Iosco Creek carry?

About 1,168 vehicles per day (2022 count).

How long is Csah 3 over Iosco Creek?

The structure is 40 ft (12.3 m) long with a longest span of 12 ft (3.7 m).

Who owns Csah 3 over Iosco Creek?

It is owned by the County Highway Agency.