US Bridges

SD115 over Ck

Fair

Minnehaha County, South Dakota · 0.1 W of Dell Rapids · Structure no. 000000050203017

Built
2018
7 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
57 ft
1 main span
Daily traffic
3,514
2024 count
Owner
State
State Highway Agency

About this bridge

SD115 over Ck is a steel stringer/multi-beam or girder carrying SD115 over Ck in Minnehaha County, South Dakota. It was built in 2018, so it is 7 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 6 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 3,514 vehicles a day, roughly 9% of them trucks, projected to reach 5,443 by 2044. The structure is 57 ft (17.5 m) long and 53 ft wide.

CarriesSD115
CrossesCk
Location0.1 W of Dell Rapids
RouteState Highway 115
Coordinates43.82348, -96.72112
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.8 US tons
Inventory rating40.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length57 ft (17.5 m)
Longest span55 ft (16.7 m)
Deck width53 ft (16.3 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,514 (2024)
Projected traffic5,443 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SD115 over Ck built?

It was built in 2018, making it 7 years old in 2025.

What condition is SD115 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 October 2024.

How much traffic does SD115 over Ck carry?

About 3,514 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is SD115 over Ck?

The structure is 57 ft (17.5 m) long with a longest span of 55 ft (16.7 m) and a deck 53 ft wide.

Who owns SD115 over Ck?

It is owned by the State Highway Agency.