US Bridges

243 ST over Firesteel Ck

FairPosted for load

Aurora County, South Dakota · 2.5W Storla · Structure no. 000000002205050

Built
1930
95 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
2 main spans
Daily traffic
33
2022 count
Owner
County
County Highway Agency

About this bridge

243 ST over Firesteel Ck is a steel stringer/multi-beam or girder carrying 243 ST over Firesteel Ck in Aurora 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 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. Its operating status is: posted for load restriction.

It carries about 33 vehicles a day, roughly 3% of them trucks, projected to reach 33 by 2032. The structure is 60 ft (18.3 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries243 ST
CrossesFiresteel Ck
Location2.5W Storla
RouteCounty Highway 0
CountyAurora County
StateSouth Dakota
Coordinates43.86474, -98.40255
Functional classRural Major Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
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
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating28.1 US tons
Inventory rating16.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length60 ft (18.3 m)
Longest span29 ft (8.8 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33 (2022)
Projected traffic33 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 243 ST over Firesteel Ck built?

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

What condition is 243 ST over Firesteel 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 2023.

How much traffic does 243 ST over Firesteel Ck carry?

About 33 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is 243 ST over Firesteel Ck?

The structure is 60 ft (18.3 m) long with a longest span of 29 ft (8.8 m) and a deck 22 ft wide.

Who owns 243 ST over Firesteel Ck?

It is owned by the County Highway Agency.