US Bridges

US 71 over CO Ditch # 23A

Good

Kandiyohi County, Minnesota · 2.3 MI SW of JCT TH 12 · Structure no. 95150

Built
1979
46 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
7,782
2021 count
Owner
State
State Highway Agency

About this bridge

US 71 over CO Ditch # 23A is a concrete culvert carrying US 71 over CO Ditch # 23A in Kandiyohi County, Minnesota. It was built in 1979, so it is 46 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 7,782 vehicles a day, roughly 17% of them trucks, projected to reach 7,400 by 2041. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 71
CrossesCO Ditch # 23A
Location2.3 MI SW of JCT TH 12
RouteU.S. Route 71
Coordinates45.09782, -95.03001
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,782 (2021)
Projected traffic7,400 by 2041
Trucks17%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 71 over CO Ditch # 23A built?

It was built in 1979, making it 46 years old in 2025.

What condition is US 71 over CO Ditch # 23A 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 US 71 over CO Ditch # 23A carry?

About 7,782 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is US 71 over CO Ditch # 23A?

The structure is 30 ft (9.1 m) long with a longest span of 12 ft (3.6 m).

Who owns US 71 over CO Ditch # 23A?

It is owned by the State Highway Agency.