US Bridges

30370 461 Ave over Vermillion Rv

Good

Clay County, South Dakota · 6.7S & 9E Irene · Structure no. 000000014090067

Built
2001
24 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
120 ft
1 main span
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

30370 461 Ave over Vermillion Rv is a prestressed concrete stringer/multi-beam or girder carrying 30370 461 Ave over Vermillion Rv in Clay County, South Dakota. It was built in 2001, so it is 24 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 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 50 vehicles a day, roughly 2% of them trucks, projected to reach 97 by 2032. The structure is 120 ft (36.6 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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Carries30370 461 Ave
CrossesVermillion Rv
Location6.7S & 9E Irene
RouteCounty Highway 0
CountyClay County
StateSouth Dakota
Coordinates42.98551, -96.98384
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating86.5 US tons
Inventory rating51.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span116 ft (35.3 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic97 by 2032
Trucks2%
Lanes on structure2
Traffic directionOne-lane bridge for two-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 30370 461 Ave over Vermillion Rv built?

It was built in 2001, making it 24 years old in 2025.

What condition is 30370 461 Ave over 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 August 2024.

How much traffic does 30370 461 Ave over Vermillion Rv carry?

About 50 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 30370 461 Ave over Vermillion Rv?

The structure is 120 ft (36.6 m) long with a longest span of 116 ft (35.3 m) and a deck 30 ft wide.

Who owns 30370 461 Ave over Vermillion Rv?

It is owned by the County Highway Agency.