SD034 over East Br Smith Ck

Fair

Jerauld County, South Dakota · 6.8 W Wessington Springs · Structure no. 000000037111080

Built: 1952; 73 years old
Condition: Fair; inspected June 2023
Type: Slab; Concrete Continuous
Length: 92 ft; 4 main spans
Daily traffic: 1,218; 2024 count
Owner: State; State Highway Agency

About this bridge

SD034 over East Br Smith Ck is a concrete continuous slab carrying SD034 over East Br Smith Ck in Jerauld County, South Dakota. It was built in 1952, so it is 73 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 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 1,218 vehicles a day, roughly 17% of them trucks, projected to reach 1,667 by 2044. The structure is 92 ft (28 m) long and 34 ft wide. If it were closed, the detour would be 60.9 mi (98 km).

Location

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CarriesSD034

CrossesEast Br Smith Ck

Location6.8 W Wessington Springs

RouteState Highway 34

CountyJerauld County

StateSouth Dakota

Coordinates44.08043, -98.70632

Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	6 Satisfactory	Structural elements show some minor deterioration.
Substructure	6 Satisfactory	Structural elements show some minor deterioration.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionJune 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour within limits of footing or piles

Structural evaluation6: Equal to present minimum criteria

Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating55.1 US tons

Inventory rating33.1 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans4

Design loadH 20

Structure length92 ft (28 m)

Longest span23 ft (7.1 m)

Deck width34 ft (10.5 m)

Roadway width30 ft (9.1 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,218 (2024)

Projected traffic1,667 by 2044

Trucks17%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed60.9 mi (98 km)

TollOn a free road

National Highway SystemNo

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—

NavigationNo navigation control on waterway

Frequently asked questions

When was SD034 over East Br Smith Ck built?

It was built in 1952, making it 73 years old in 2025.

What condition is SD034 over East Br Smith Ck 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 SD034 over East Br Smith Ck carry?

About 1,218 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is SD034 over East Br Smith Ck?

The structure is 92 ft (28 m) long with a longest span of 23 ft (7.1 m) and a deck 34 ft wide.

Who owns SD034 over East Br Smith Ck?

It is owned by the State Highway Agency.