US Bridges

143 Street over Ck

Fair

Grant County, South Dakota · 1.2E & 3.5N Marvin · Structure no. 000000026169010

Built
1941
84 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
130
2022 count
Owner
County
County Highway Agency

About this bridge

143 Street over Ck is a concrete continuous culvert carrying 143 Street over Ck in Grant County, South Dakota. It was built in 1941, so it is 84 years old, older than the South Dakota average of 48.9 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 130 vehicles a day, roughly 2% of them trucks, projected to reach 130 by 2032. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Carries143 Street
CrossesCk
Location1.2E & 3.5N Marvin
RouteCounty Highway 0
Coordinates45.31229, -96.88401
Functional classRural Local

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2022)
Projected traffic130 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 143 Street over Ck built?

It was built in 1941, making it 84 years old in 2025.

What condition is 143 Street over Ck 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 143 Street over Ck carry?

About 130 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 143 Street over Ck?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns 143 Street over Ck?

It is owned by the County Highway Agency.