US Bridges

SD050 over Sd 50 Wl So Dak Owned R

Good

Clay County, South Dakota · 2 NW of Vermillion · Structure no. 000000014092199

Built
1981
44 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
393 ft
4 main spans
Daily traffic
5,147
2024 count
Owner
State
State Highway Agency

About this bridge

SD050 over Sd 50 Wl So Dak Owned R is a steel continuous stringer/multi-beam or girder carrying SD050 over Sd 50 Wl So Dak Owned R in Clay County, South Dakota. It was built in 1981, so it is 44 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 5,147 vehicles a day, roughly 25% of them trucks, projected to reach 8,446 by 2044. The structure is 393 ft (119.9 m) long and 75 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSD050
CrossesSd 50 Wl So Dak Owned R
Location2 NW of Vermillion
RouteState Highway 50
Coordinates42.79493, -96.97803
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.9 US tons
Inventory rating40 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length393 ft (119.9 m)
Longest span111 ft (33.8 m)
Deck width75 ft (22.8 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,147 (2024)
Projected traffic8,446 by 2044
Trucks25%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SD050 over Sd 50 Wl So Dak Owned R built?

It was built in 1981, making it 44 years old in 2025.

What condition is SD050 over Sd 50 Wl So Dak Owned R 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 April 2024.

How much traffic does SD050 over Sd 50 Wl So Dak Owned R carry?

About 5,147 vehicles per day (2024 count), of which roughly 25% are trucks.

How long is SD050 over Sd 50 Wl So Dak Owned R?

The structure is 393 ft (119.9 m) long with a longest span of 111 ft (33.8 m) and a deck 75 ft wide.

Who owns SD050 over Sd 50 Wl So Dak Owned R?

It is owned by the State Highway Agency.