US Bridges

204 ST over South Fork Pearl Ck

Good

Kingsbury County, South Dakota · 4 N & 0.5 E Iroquois · Structure no. 000000039005080

Built
1987
38 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
75
2022 count
Owner
County
County Highway Agency

About this bridge

204 ST over South Fork Pearl Ck is a concrete culvert carrying 204 ST over South Fork Pearl Ck in Kingsbury County, South Dakota. It was built in 1987, so it is 38 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 75 vehicles a day, roughly 2% of them trucks, projected to reach 75 by 2032. The structure is 33 ft (10 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries204 ST
CrossesSouth Fork Pearl Ck
Location4 N & 0.5 E Iroquois
RouteCounty Highway 0
Coordinates44.42643, -97.84367
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
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 alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length33 ft (10 m)
Longest span11 ft (3.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2022)
Projected traffic75 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 204 ST over South Fork Pearl Ck built?

It was built in 1987, making it 38 years old in 2025.

What condition is 204 ST over South Fork Pearl Ck in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does 204 ST over South Fork Pearl Ck carry?

About 75 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 204 ST over South Fork Pearl Ck?

The structure is 33 ft (10 m) long with a longest span of 11 ft (3.3 m).

Who owns 204 ST over South Fork Pearl Ck?

It is owned by the County Highway Agency.