US Bridges

Csah 20 over CO Ditch # 4

Fair

Lac qui Parle County, Minnesota · At the JCT Csah 27 · Structure no. 95423

Built
1980
45 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
45 ft
2 main spans
Daily traffic
530
2016 count
Owner
County
County Highway Agency

About this bridge

Csah 20 over CO Ditch # 4 is a concrete culvert carrying Csah 20 over CO Ditch # 4 in Lac qui Parle County, Minnesota. It was built in 1980, so it is 45 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 530 vehicles a day, projected to reach 530 by 2039. The structure is 45 ft (13.8 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesCsah 20
CrossesCO Ditch # 4
LocationAt the JCT Csah 27
RouteCounty Highway 20
CountyLac qui Parle County
StateMinnesota
Coordinates45.0077, -95.98122
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable 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 length45 ft (13.8 m)
Longest span18 ft (5.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic530 (2016)
Projected traffic530 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 20 over CO Ditch # 4 built?

It was built in 1980, making it 45 years old in 2025.

What condition is Csah 20 over CO Ditch # 4 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Csah 20 over CO Ditch # 4 carry?

About 530 vehicles per day (2016 count).

How long is Csah 20 over CO Ditch # 4?

The structure is 45 ft (13.8 m) long with a longest span of 18 ft (5.6 m).

Who owns Csah 20 over CO Ditch # 4?

It is owned by the County Highway Agency.