US Bridges

229th Street over Sand Ck

Fair

Sanborn County, South Dakota · 5.9E & 1 N Woonsocket · Structure no. 000000056089090

Built
2000
25 years old
Condition
Fair
inspected August 2024
Type
Culvert
Steel
Length
38 ft
4 main spans
Daily traffic
56
2022 count
Owner
County
County Highway Agency

About this bridge

229th Street over Sand Ck is a steel culvert carrying 229th Street over Sand Ck in Sanborn County, South Dakota. It was built in 2000, so it is 25 years old, younger 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 56 vehicles a day, roughly 2% of them trucks, projected to reach 56 by 2032. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Carries229th Street
CrossesSand Ck
Location5.9E & 1 N Woonsocket
RouteCounty Highway 0
Coordinates44.06886, -98.15384
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 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 closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 229th Street over Sand Ck built?

It was built in 2000, making it 25 years old in 2025.

What condition is 229th Street over Sand 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 August 2024.

How much traffic does 229th Street over Sand Ck carry?

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

How long is 229th Street over Sand Ck?

The structure is 38 ft (11.6 m) long with a longest span of 8 ft (2.4 m).

Who owns 229th Street over Sand Ck?

It is owned by the County Highway Agency.