US Bridges

239 ST over West Fork Vermillion Rv

Fair

Miner County, South Dakota · 3N & 1.1E Canova · Structure no. 000000049181190

Built
1997
28 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

239 ST over West Fork Vermillion Rv is a concrete continuous culvert carrying 239 ST over West Fork Vermillion Rv in Miner County, South Dakota. It was built in 1997, so it is 28 years old, younger 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 15 vehicles a day, roughly 2% of them trucks, projected to reach 15 by 2032. The structure is 25 ft (7.5 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries239 ST
CrossesWest Fork Vermillion Rv
Location3N & 1.1E Canova
RouteCounty Highway 0
CountyMiner County
StateSouth Dakota
Coordinates43.92098, -97.48892
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 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating41.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length25 ft (7.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 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 239 ST over West Fork Vermillion Rv built?

It was built in 1997, making it 28 years old in 2025.

What condition is 239 ST over West Fork Vermillion Rv 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 239 ST over West Fork Vermillion Rv carry?

About 15 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 239 ST over West Fork Vermillion Rv?

The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m).

Who owns 239 ST over West Fork Vermillion Rv?

It is owned by the County Highway Agency.