US Bridges

Csah 15 over CO Ditch # 31

Good

Wilkin County, Minnesota · 3.1 MI N of JCT TH 210 · Structure no. 97403

Built
1993
32 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
37
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 15 over CO Ditch # 31 is a concrete culvert carrying Csah 15 over CO Ditch # 31 in Wilkin County, Minnesota. It was built in 1993, so it is 32 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 37 vehicles a day, projected to reach 55 by 2042. The structure is 22 ft (6.6 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCsah 15
CrossesCO Ditch # 31
Location3.1 MI N of JCT TH 210
RouteCounty Highway 15
CountyWilkin County
StateMinnesota
Coordinates46.32602, -96.38502
Functional classRural Local

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 protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 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 rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length22 ft (6.6 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37 (2022)
Projected traffic55 by 2042
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 15 over CO Ditch # 31 built?

It was built in 1993, making it 32 years old in 2025.

What condition is Csah 15 over CO Ditch # 31 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 2023.

How much traffic does Csah 15 over CO Ditch # 31 carry?

About 37 vehicles per day (2022 count).

How long is Csah 15 over CO Ditch # 31?

The structure is 22 ft (6.6 m) long with a longest span of 8 ft (2.4 m).

Who owns Csah 15 over CO Ditch # 31?

It is owned by the County Highway Agency.