US Bridges

Csah 13 over Toad River

Good

Otter Tail County, Minnesota · 0.5 MI N of JCT Csah 8 · Structure no. 91933

Built
1999
26 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
1,050
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 13 over Toad River is a concrete culvert carrying Csah 13 over Toad River in Otter Tail County, Minnesota. It was built in 1999, so it is 26 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 1,050 vehicles a day, projected to reach 860 by 2039. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCsah 13
CrossesToad River
Location0.5 MI N of JCT Csah 8
RouteCounty Highway 13
Coordinates46.65126, -95.51961
Functional classRural Major 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 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 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 length30 ft (9.1 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 traffic1,050 (2019)
Projected traffic860 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 13 over Toad River built?

It was built in 1999, making it 26 years old in 2025.

What condition is Csah 13 over Toad 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 October 2024.

How much traffic does Csah 13 over Toad River carry?

About 1,050 vehicles per day (2019 count).

How long is Csah 13 over Toad River?

The structure is 30 ft (9.1 m) long with a longest span of 12 ft (3.7 m).

Who owns Csah 13 over Toad River?

It is owned by the County Highway Agency.