US Bridges

County RD over South Ck

Good

Haakon County, South Dakota · 4.1S&7-2E Milesville · Structure no. 000000028232241

Built
2009
16 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
28
2022 count
Owner
County
County Highway Agency

About this bridge

County RD over South Ck is a prestressed concrete tee beam carrying County RD over South Ck in Haakon County, South Dakota. It was built in 2009, so it is 16 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 28 vehicles a day, roughly 2% of them trucks, projected to reach 28 by 2032. The structure is 26 ft (7.9 m) long and 31 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

CarriesCounty RD
CrossesSouth Ck
Location4.1S&7-2E Milesville
RouteCounty Highway 0
Coordinates44.40015, -101.53546
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28 (2022)
Projected traffic28 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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 County RD over South Ck built?

It was built in 2009, making it 16 years old in 2025.

What condition is County RD over South 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 September 2024.

How much traffic does County RD over South Ck carry?

About 28 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County RD over South Ck?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 31 ft wide.

Who owns County RD over South Ck?

It is owned by the County Highway Agency.