US Bridges

41630 268 St. over Twelve Mile Ck

Good

Hutchinson County, South Dakota · 8.0N 6.3E Parkston · Structure no. 000000034123000

Built
2024
1 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete Continuous
Length
34 ft
3 main spans
Daily traffic
69
2022 count
Owner
County
County Highway Agency

About this bridge

41630 268 St. over Twelve Mile Ck is a concrete continuous culvert carrying 41630 268 St. over Twelve Mile Ck in Hutchinson County, South Dakota. It was built in 2024, so it is 1 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 69 vehicles a day, roughly 2% of them trucks, projected to reach 69 by 2032. The structure is 34 ft (10.4 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries41630 268 St.
CrossesTwelve Mile Ck
Location8.0N 6.3E Parkston
RouteCounty Highway 0
Coordinates43.49945, -97.8723
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.2 US tons
Inventory rating40.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHL 93
Structure length34 ft (10.4 m)
Longest span11 ft (3.4 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic69 (2022)
Projected traffic69 by 2032
Trucks2%
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 41630 268 St. over Twelve Mile Ck built?

It was built in 2024, making it 1 years old in 2025.

What condition is 41630 268 St. over Twelve Mile 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 June 2024.

How much traffic does 41630 268 St. over Twelve Mile Ck carry?

About 69 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 41630 268 St. over Twelve Mile Ck?

The structure is 34 ft (10.4 m) long with a longest span of 11 ft (3.4 m) and a deck 24 ft wide.

Who owns 41630 268 St. over Twelve Mile Ck?

It is owned by the County Highway Agency.