US Bridges

Twnshp RD 168th ST over Ck

Fair

Deuel County, South Dakota · 1.2E & 4N Tunerville · Structure no. 000000020112020

Built
1988
37 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
35
2022 count
Owner
County
County Highway Agency

About this bridge

Twnshp RD 168th ST over Ck is a prestressed concrete tee beam carrying Twnshp RD 168th ST over Ck in Deuel County, South Dakota. It was built in 1988, so it is 37 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 35 vehicles a day, roughly 2% of them trucks, projected to reach 35 by 2032. The structure is 35 ft (10.7 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTwnshp RD 168th ST
CrossesCk
Location1.2E & 4N Tunerville
RouteCounty Highway 0
Coordinates44.94813, -96.65425
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length35 ft (10.7 m)
Longest span34 ft (10.4 m)
Deck width31 ft (9.3 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2022)
Projected traffic35 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Twnshp RD 168th ST over Ck built?

It was built in 1988, making it 37 years old in 2025.

What condition is Twnshp RD 168th ST over Ck in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Twnshp RD 168th ST over Ck carry?

About 35 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Twnshp RD 168th ST over Ck?

The structure is 35 ft (10.7 m) long with a longest span of 34 ft (10.4 m) and a deck 31 ft wide.

Who owns Twnshp RD 168th ST over Ck?

It is owned by the County Highway Agency.