US Bridges

SD050 over Pease Ck

Fair

Charles Mix County, South Dakota · 5.3 S JCT Sd 44 E · Structure no. 000000012300132

Built
1955
70 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
54 ft
3 main spans
Daily traffic
554
2024 count
Owner
State
State Highway Agency

About this bridge

SD050 over Pease Ck is a concrete continuous slab carrying SD050 over Pease Ck in Charles Mix County, South Dakota. It was built in 1955, so it is 70 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 554 vehicles a day, roughly 10% of them trucks, projected to reach 799 by 2044. The structure is 54 ft (16.5 m) long and 34 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesSD050
CrossesPease Ck
Location5.3 S JCT Sd 44 E
RouteState Highway 50
Coordinates43.31031, -98.70729
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.6 US tons
Inventory rating30.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length54 ft (16.5 m)
Longest span18 ft (5.6 m)
Deck width34 ft (10.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic554 (2024)
Projected traffic799 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 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 SD050 over Pease Ck built?

It was built in 1955, making it 70 years old in 2025.

What condition is SD050 over Pease 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 2024.

How much traffic does SD050 over Pease Ck carry?

About 554 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is SD050 over Pease Ck?

The structure is 54 ft (16.5 m) long with a longest span of 18 ft (5.6 m) and a deck 34 ft wide.

Who owns SD050 over Pease Ck?

It is owned by the State Highway Agency.