US Bridges

SD027 over Wild Rice Ck

Fair

Marshall County, South Dakota · 4.5 N JCT Sd 10 · Structure no. 000000046170055

Built
1960
65 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
129 ft
5 main spans
Daily traffic
551
2024 count
Owner
State
State Highway Agency

About this bridge

SD027 over Wild Rice Ck is a concrete continuous slab carrying SD027 over Wild Rice Ck in Marshall County, South Dakota. It was built in 1960, so it is 65 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 551 vehicles a day, roughly 32% of them trucks, projected to reach 648 by 2044. The structure is 129 ft (39.2 m) long and 34 ft wide. If it were closed, the detour would be 51 mi (82 km).

CarriesSD027
CrossesWild Rice Ck
Location4.5 N JCT Sd 10
RouteState Highway 27
Coordinates45.85599, -97.62609
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
ScourFoundations stable; scour within limits of footing or piles
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 rating61 US tons
Inventory rating36.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length129 ft (39.2 m)
Longest span24 ft (7.4 m)
Deck width34 ft (10.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic551 (2024)
Projected traffic648 by 2044
Trucks32%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed51 mi (82 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 SD027 over Wild Rice Ck built?

It was built in 1960, making it 65 years old in 2025.

What condition is SD027 over Wild Rice 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 SD027 over Wild Rice Ck carry?

About 551 vehicles per day (2024 count), of which roughly 32% are trucks.

How long is SD027 over Wild Rice Ck?

The structure is 129 ft (39.2 m) long with a longest span of 24 ft (7.4 m) and a deck 34 ft wide.

Who owns SD027 over Wild Rice Ck?

It is owned by the State Highway Agency.