US Bridges

247th Street over Firesteel Ck

Good

Davison County, South Dakota · 7N & 14.2 W Mitchell · Structure no. 000000018008030

Built
2011
14 years old
Condition
Good
inspected July 2024
Type
Tee Beam
Prestressed Concrete
Length
142 ft
2 main spans
Daily traffic
149
2022 count
Owner
County
County Highway Agency

About this bridge

247th Street over Firesteel Ck is a prestressed concrete tee beam carrying 247th Street over Firesteel Ck in Davison County, South Dakota. It was built in 2011, so it is 14 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 149 vehicles a day, roughly 2% of them trucks, projected to reach 149 by 2032. The structure is 142 ft (43.3 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries247th Street
CrossesFiresteel Ck
Location7N & 14.2 W Mitchell
RouteCounty Highway 0
Coordinates43.80463, -98.30905
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating56.5 US tons
Inventory rating43.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHL 93
Structure length142 ft (43.3 m)
Longest span69 ft (21 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic149 (2022)
Projected traffic149 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 247th Street over Firesteel Ck built?

It was built in 2011, making it 14 years old in 2025.

What condition is 247th Street over Firesteel 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 July 2024.

How much traffic does 247th Street over Firesteel Ck carry?

About 149 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 247th Street over Firesteel Ck?

The structure is 142 ft (43.3 m) long with a longest span of 69 ft (21 m) and a deck 32 ft wide.

Who owns 247th Street over Firesteel Ck?

It is owned by the County Highway Agency.