US Bridges

196 ST over Cow Ck

Good

Sully County, South Dakota · 6.9S & 1.6E Okobojo · Structure no. 000000060172240

Built
2006
19 years old
Condition
Good
inspected July 2021
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
180
2022 count
Owner
County
County Highway Agency

About this bridge

196 ST over Cow Ck is a concrete continuous culvert carrying 196 ST over Cow Ck in Sully County, South Dakota. It was built in 2006, so it is 19 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 180 vehicles a day, roughly 9% of them trucks, projected to reach 220 by 2032. The structure is 29 ft (8.7 m) long. If it were closed, the detour would be 14.9 mi (24 km).

Carries196 ST
CrossesCow Ck
Location6.9S & 1.6E Okobojo
RouteCounty Highway 0
Coordinates44.54827, -100.36337
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 inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
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 traffic180 (2022)
Projected traffic220 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 196 ST over Cow Ck built?

It was built in 2006, making it 19 years old in 2025.

What condition is 196 ST over Cow 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 July 2021.

How much traffic does 196 ST over Cow Ck carry?

About 180 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is 196 ST over Cow Ck?

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

Who owns 196 ST over Cow Ck?

It is owned by the County Highway Agency.