US Bridges

Csah 31 over CO Ditch # 34

Good

Lac qui Parle County, Minnesota · 1.3 MI N of JCT TH 212 · Structure no. 91503

Built
1977
48 years old
Condition
Good
inspected September 2021
Type
Culvert
Concrete
Length
32 ft
2 main spans
Daily traffic
230
2016 count
Owner
County
County Highway Agency

About this bridge

Csah 31 over CO Ditch # 34 is a concrete culvert carrying Csah 31 over CO Ditch # 34 in Lac qui Parle County, Minnesota. It was built in 1977, so it is 48 years old, older 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 230 vehicles a day, projected to reach 230 by 2039. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCsah 31
CrossesCO Ditch # 34
Location1.3 MI N of JCT TH 212
RouteCounty Highway 31
Coordinates44.95468, -95.92116
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2016)
Projected traffic230 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 31 over CO Ditch # 34 built?

It was built in 1977, making it 48 years old in 2025.

What condition is Csah 31 over CO Ditch # 34 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 September 2021.

How much traffic does Csah 31 over CO Ditch # 34 carry?

About 230 vehicles per day (2016 count).

How long is Csah 31 over CO Ditch # 34?

The structure is 32 ft (9.8 m) long with a longest span of 13 ft (3.9 m).

Who owns Csah 31 over CO Ditch # 34?

It is owned by the County Highway Agency.