US Bridges

SD248 over Big Buffalo Ck

Good

Jackson County, South Dakota · 1 E of Cactus Flats · Structure no. 000000036136111

Built
2020
5 years old
Condition
Good
inspected December 2022
Type
Culvert
Concrete
Length
40 ft
1 main span
Daily traffic
86
2024 count
Owner
State
State Highway Agency

About this bridge

SD248 over Big Buffalo Ck is a concrete culvert carrying SD248 over Big Buffalo Ck in Jackson County, South Dakota. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 86 vehicles a day, roughly 8% of them trucks, projected to reach 124 by 2044. The structure is 40 ft (12.1 m) long and 28 ft wide.

CarriesSD248
CrossesBig Buffalo Ck
Location1 E of Cactus Flats
RouteState Highway 248
Coordinates43.83557, -101.86988
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionDecember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating103.2 US tons
Inventory rating79.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length40 ft (12.1 m)
Longest span12 ft (3.7 m)
Deck width28 ft (8.5 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic86 (2024)
Projected traffic124 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SD248 over Big Buffalo Ck built?

It was built in 2020, making it 5 years old in 2025.

What condition is SD248 over Big Buffalo 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 December 2022.

How much traffic does SD248 over Big Buffalo Ck carry?

About 86 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is SD248 over Big Buffalo Ck?

The structure is 40 ft (12.1 m) long with a longest span of 12 ft (3.7 m) and a deck 28 ft wide.

Who owns SD248 over Big Buffalo Ck?

It is owned by the State Highway Agency.