US Bridges

203rd ST over South Fork Pearl Ck

PoorPosted for load

Kingsbury County, South Dakota · 5 N & 0.6 E Iroquois · Structure no. 000000039006070

Built
1930
95 years old
Condition
Poor
inspected July 2024
Type
Culvert
Concrete
Length
23 ft
1 main span
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

203rd ST over South Fork Pearl Ck is a concrete culvert carrying 203rd ST over South Fork Pearl Ck in Kingsbury County, South Dakota. It was built in 1930, so it is 95 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 15 vehicles a day, roughly 2% of them trucks, projected to reach 15 by 2036. The structure is 23 ft (7.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries203rd ST
CrossesSouth Fork Pearl Ck
Location5 N & 0.6 E Iroquois
RouteCounty Highway 0
Coordinates44.44094, -97.84095
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating27 US tons
Inventory rating16.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length23 ft (7.1 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 by 2036
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 statusListed on the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$262,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 203rd ST over South Fork Pearl Ck built?

It was built in 1930, making it 95 years old in 2025.

What condition is 203rd ST over South Fork Pearl Ck 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 July 2024.

How much traffic does 203rd ST over South Fork Pearl Ck carry?

About 15 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 203rd ST over South Fork Pearl Ck?

The structure is 23 ft (7.1 m) long with a longest span of 20 ft (6.1 m).

Who owns 203rd ST over South Fork Pearl Ck?

It is owned by the County Highway Agency.