US Bridges

233 Street over Sand Ck

Fair

Jerauld County, South Dakota · 2S 3.3W Alpena · Structure no. 000000037248030

Built
1976
49 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
42
2022 count
Owner
County
County Highway Agency

About this bridge

233 Street over Sand Ck is a prestressed concrete tee beam carrying 233 Street over Sand Ck in Jerauld County, South Dakota. It was built in 1976, so it is 49 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 6 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 42 vehicles a day, roughly 2% of them trucks, projected to reach 42 by 2032. The structure is 50 ft (15.2 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries233 Street
CrossesSand Ck
Location2S 3.3W Alpena
RouteCounty Highway 0
Coordinates44.15492, -98.43571
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length50 ft (15.2 m)
Longest span49 ft (14.9 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42 (2022)
Projected traffic42 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 233 Street over Sand Ck built?

It was built in 1976, making it 49 years old in 2025.

What condition is 233 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 233 Street over Sand Ck carry?

About 42 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 233 Street over Sand Ck?

The structure is 50 ft (15.2 m) long with a longest span of 49 ft (14.9 m) and a deck 31 ft wide.

Who owns 233 Street over Sand Ck?

It is owned by the County Highway Agency.