US Bridges

46150 310 St. over Ck

Good

Clay County, South Dakota · 8N & 2W Vermillion · Structure no. 000000014095130

Built
1978
47 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete Continuous
Length
31 ft
2 main spans
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

46150 310 St. over Ck is a concrete continuous culvert carrying 46150 310 St. over Ck in Clay County, South Dakota. It was built in 1978, so it is 47 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 25 vehicles a day, roughly 2% of them trucks, projected to reach 97 by 2032. The structure is 31 ft (9.4 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries46150 310 St.
CrossesCk
Location8N & 2W Vermillion
RouteCounty Highway 0
Coordinates42.89562, -96.97409
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.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span14 ft (4.3 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic97 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$25,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 46150 310 St. over Ck built?

It was built in 1978, making it 47 years old in 2025.

What condition is 46150 310 St. over 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 August 2024.

How much traffic does 46150 310 St. over Ck carry?

About 25 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 46150 310 St. over Ck?

The structure is 31 ft (9.4 m) long with a longest span of 14 ft (4.3 m) and a deck 24 ft wide.

Who owns 46150 310 St. over Ck?

It is owned by the County Highway Agency.