US Bridges

Csah 4 over Sauk River

Good

Todd County, Minnesota · 2.1 MI E of JCT TH 27 · Structure no. 77J63

Built
2006
19 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
34 ft
2 main spans
Daily traffic
360
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 4 over Sauk River is a concrete culvert carrying Csah 4 over Sauk River in Todd County, Minnesota. It was built in 2006, so it is 19 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 360 vehicles a day, projected to reach 310 by 2038. The structure is 34 ft (10.5 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCsah 4
CrossesSauk River
Location2.1 MI E of JCT TH 27
RouteCounty Highway 4
Coordinates45.86126, -95.08341
Functional classRural Minor Collector

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.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.6 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length34 ft (10.5 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic360 (2018)
Projected traffic310 by 2038
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 4 over Sauk River built?

It was built in 2006, making it 19 years old in 2025.

What condition is Csah 4 over Sauk River 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 August 2023.

How much traffic does Csah 4 over Sauk River carry?

About 360 vehicles per day (2018 count).

How long is Csah 4 over Sauk River?

The structure is 34 ft (10.5 m) long with a longest span of 16 ft (4.9 m).

Who owns Csah 4 over Sauk River?

It is owned by the County Highway Agency.