US Bridges

27140 446 Ave over West Fork Vermillion Rv

Fair

Turner County, South Dakota · 1.6N & 1W Marion · Structure no. 000000063060034

Built
1998
27 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
80 ft
2 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

27140 446 Ave over West Fork Vermillion Rv is a prestressed concrete stringer/multi-beam or girder carrying 27140 446 Ave over West Fork Vermillion Rv in Turner County, South Dakota. It was built in 1998, so it is 27 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 5 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 100 vehicles a day, roughly 2% of them trucks, projected to reach 55 by 2032. The structure is 80 ft (24.4 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries27140 446 Ave
CrossesWest Fork Vermillion Rv
Location1.6N & 1W Marion
RouteCounty Highway 0
CountyTurner County
StateSouth Dakota
Coordinates43.45409, -97.28037
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span40 ft (12.2 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic55 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$25,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 27140 446 Ave over West Fork Vermillion Rv built?

It was built in 1998, making it 27 years old in 2025.

What condition is 27140 446 Ave 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 June 2023.

How much traffic does 27140 446 Ave over West Fork Vermillion Rv carry?

About 100 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 27140 446 Ave over West Fork Vermillion Rv?

The structure is 80 ft (24.4 m) long with a longest span of 40 ft (12.2 m) and a deck 24 ft wide.

Who owns 27140 446 Ave over West Fork Vermillion Rv?

It is owned by the County Highway Agency.