US Bridges

161st Str over Ck

Good

Grant County, South Dakota · 0.3N & 1.3E Strandburg · Structure no. 000000026243190

Built
2000
25 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
250
2022 count
Owner
County
County Highway Agency

About this bridge

161st Str over Ck is a concrete continuous culvert carrying 161st Str over Ck in Grant County, South Dakota. It was built in 2000, so it is 25 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 250 vehicles a day, roughly 2% of them trucks, projected to reach 250 by 2032. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Carries161st Str
CrossesCk
Location0.3N & 1.3E Strandburg
RouteCounty Highway 0
Coordinates45.04864, -96.73492
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86 US tons
Inventory rating66 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2022)
Projected traffic250 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 161st Str over Ck built?

It was built in 2000, making it 25 years old in 2025.

What condition is 161st Str 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 September 2024.

How much traffic does 161st Str over Ck carry?

About 250 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 161st Str over Ck?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m).

Who owns 161st Str over Ck?

It is owned by the County Highway Agency.