US Bridges

SD075 over Little Nasty Ck

Good

Perkins County, South Dakota · 11.6 N JCT Sd 20 · Structure no. 000000053141175

Built
2020
5 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
209
2023 count
Owner
State
State Highway Agency

About this bridge

SD075 over Little Nasty Ck is a concrete continuous culvert carrying SD075 over Little Nasty Ck in Perkins 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 209 vehicles a day, roughly 14% of them trucks, projected to reach 264 by 2043. The structure is 29 ft (8.7 m) long.

CarriesSD075
CrossesLittle Nasty Ck
Location11.6 N JCT Sd 20
RouteState Highway 75
Coordinates45.69774, -102.66238
Functional classRural Minor Arterial

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 protection9 ExcellentNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2023
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 rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length29 ft (8.7 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic209 (2023)
Projected traffic264 by 2043
Trucks14%
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 SD075 over Little Nasty Ck built?

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

What condition is SD075 over Little Nasty 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 March 2023.

How much traffic does SD075 over Little Nasty Ck carry?

About 209 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SD075 over Little Nasty Ck?

The structure is 29 ft (8.7 m) long with a longest span of 14 ft (4.3 m).

Who owns SD075 over Little Nasty Ck?

It is owned by the State Highway Agency.