US Bridges

US281 over Turtle Ck

Fair

Spink County, South Dakota · 0.5 N JCT US 212 · Structure no. 000000058095249

Built
1963
62 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
164 ft
4 main spans
Daily traffic
2,141
2024 count
Owner
State
State Highway Agency

About this bridge

US281 over Turtle Ck is a concrete continuous slab carrying US281 over Turtle Ck in Spink County, South Dakota. It was built in 1963, so it is 62 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 2,141 vehicles a day, roughly 26% of them trucks, projected to reach 2,914 by 2044. The structure is 164 ft (50.1 m) long and 56 ft wide. If it were closed, the detour would be 39.1 mi (63 km).

CarriesUS281
CrossesTurtle Ck
Location0.5 N JCT US 212
RouteU.S. Route 281
Coordinates44.88361, -98.51322
Functional classRural Principal Arterial - Other

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 protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.4 US tons
Inventory rating40.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length164 ft (50.1 m)
Longest span43 ft (13.1 m)
Deck width56 ft (17.1 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,141 (2024)
Projected traffic2,914 by 2044
Trucks26%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.1 mi (63 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US281 over Turtle Ck built?

It was built in 1963, making it 62 years old in 2025.

What condition is US281 over Turtle 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 April 2024.

How much traffic does US281 over Turtle Ck carry?

About 2,141 vehicles per day (2024 count), of which roughly 26% are trucks.

How long is US281 over Turtle Ck?

The structure is 164 ft (50.1 m) long with a longest span of 43 ft (13.1 m) and a deck 56 ft wide.

Who owns US281 over Turtle Ck?

It is owned by the State Highway Agency.