US Bridges

US081 over Little Vermillion Rv

Good

McCook County, South Dakota · 2.6 S Miner CO Line · Structure no. 000000044110025

Built
1947
78 years old, rebuilt 1961
Condition
Good
inspected November 2021
Type
Culvert
Concrete Continuous
Length
31 ft
3 main spans
Daily traffic
1,268
2024 count
Owner
State
State Highway Agency

About this bridge

US081 over Little Vermillion Rv is a concrete continuous culvert carrying US081 over Little Vermillion Rv in McCook County, South Dakota. It was built in 1947 and reconstructed in 1961, so it is 78 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,268 vehicles a day, roughly 26% of them trucks, projected to reach 1,898 by 2044. The structure is 31 ft (9.5 m) long. If it were closed, the detour would be 37.3 mi (60 km).

CarriesUS081
CrossesLittle Vermillion Rv
Location2.6 S Miner CO Line
RouteU.S. Route 81
Coordinates43.81164, -97.38918
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97 US tons
Inventory rating58.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length31 ft (9.5 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 traffic1,268 (2024)
Projected traffic1,898 by 2044
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.3 mi (60 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$14,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US081 over Little Vermillion Rv built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1961.

What condition is US081 over Little Vermillion Rv 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 November 2021.

How much traffic does US081 over Little Vermillion Rv carry?

About 1,268 vehicles per day (2024 count), of which roughly 26% are trucks.

How long is US081 over Little Vermillion Rv?

The structure is 31 ft (9.5 m) long with a longest span of 10 ft (3 m).

Who owns US081 over Little Vermillion Rv?

It is owned by the State Highway Agency.