US Bridges

201st Street over Cain Creek

PoorPosted for load

Beadle County, South Dakota · 4.0N & 3.9W of Wolsey · Structure no. 000000003071110

Built
1926
99 years old
Condition
Poor
inspected September 2024
Type
Slab
Concrete Continuous
Length
78 ft
7 main spans
Daily traffic
56
2022 count
Owner
County
County Highway Agency

About this bridge

201st Street over Cain Creek is a concrete continuous slab carrying 201st Street over Cain Creek in Beadle County, South Dakota. It was built in 1926, so it is 99 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 56 vehicles a day, roughly 2% of them trucks, projected to reach 56 by 2032. The structure is 78 ft (23.8 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries201st Street
CrossesCain Creek
Location4.0N & 3.9W of Wolsey
Coordinates44.47226, -98.55634
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating18 US tons
Inventory rating13.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadUnknown
Structure length78 ft (23.8 m)
Longest span11 ft (3.4 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56 (2022)
Projected traffic56 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 201st Street over Cain Creek built?

It was built in 1926, making it 99 years old in 2025.

What condition is 201st Street over Cain Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does 201st Street over Cain Creek carry?

About 56 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 201st Street over Cain Creek?

The structure is 78 ft (23.8 m) long with a longest span of 11 ft (3.4 m) and a deck 21 ft wide.

Who owns 201st Street over Cain Creek?

It is owned by the County Highway Agency.