US Bridges

SD022 over Stray Horse Ck

Fair

Hamlin County, South Dakota · 7.4 E JCT US 81 · Structure no. 000000029264050

Built
1957
68 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
186 ft
5 main spans
Daily traffic
917
2024 count
Owner
State
State Highway Agency

About this bridge

SD022 over Stray Horse Ck is a concrete continuous slab carrying SD022 over Stray Horse Ck in Hamlin County, South Dakota. It was built in 1957, so it is 68 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 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 917 vehicles a day, roughly 17% of them trucks, projected to reach 1,380 by 2044. The structure is 186 ft (56.7 m) long and 34 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesSD022
CrossesStray Horse Ck
Location7.4 E JCT US 81
RouteState Highway 22
Coordinates44.73186, -96.95612
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.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating37.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length186 ft (56.7 m)
Longest span38 ft (11.6 m)
Deck width34 ft (10.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic917 (2024)
Projected traffic1,380 by 2044
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 SD022 over Stray Horse Ck built?

It was built in 1957, making it 68 years old in 2025.

What condition is SD022 over Stray Horse 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 May 2023.

How much traffic does SD022 over Stray Horse Ck carry?

About 917 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is SD022 over Stray Horse Ck?

The structure is 186 ft (56.7 m) long with a longest span of 38 ft (11.6 m) and a deck 34 ft wide.

Who owns SD022 over Stray Horse Ck?

It is owned by the State Highway Agency.