US Bridges

205th ST over South Fork Pearl Ck

Fair

Kingsbury County, South Dakota · 3 N & 0.4 E Iroquois · Structure no. 000000039004090

Built
1967
58 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
24 ft
1 main span
Daily traffic
12
2022 count
Owner
County
County Highway Agency

About this bridge

205th ST over South Fork Pearl Ck is a wood or timber stringer/multi-beam or girder carrying 205th ST over South Fork Pearl Ck in Kingsbury County, South Dakota. It was built in 1967, so it is 58 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 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 12 vehicles a day, roughly 2% of them trucks, projected to reach 12 by 2036. The structure is 24 ft (7.3 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries205th ST
CrossesSouth Fork Pearl Ck
Location3 N & 0.4 E Iroquois
RouteCounty Highway 0
Coordinates44.41199, -97.84346
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39.4 US tons
Inventory rating28.3 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12 (2022)
Projected traffic12 by 2036
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 205th ST over South Fork Pearl Ck built?

It was built in 1967, making it 58 years old in 2025.

What condition is 205th ST over South Fork Pearl 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 July 2024.

How much traffic does 205th ST over South Fork Pearl Ck carry?

About 12 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 205th ST over South Fork Pearl Ck?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 24 ft wide.

Who owns 205th ST over South Fork Pearl Ck?

It is owned by the County Highway Agency.