US Bridges

I029 S over Skunk Ck

Fair

Minnehaha County, South Dakota · 0.3 N 26th ST Interch · Structure no. 000000050175219

Built
1989
36 years old, rebuilt 1996
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
284 ft
5 main spans
Daily traffic
33,310
2024 count
Owner
State
State Highway Agency

About this bridge

I029 S over Skunk Ck is a prestressed concrete continuous stringer/multi-beam or girder carrying I029 S over Skunk Ck in Minnehaha County, South Dakota. It was built in 1989 and reconstructed in 1996, so it is 36 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 33,310 vehicles a day, roughly 12% of them trucks, projected to reach 52,497 by 2044. The structure is 284 ft (86.6 m) long and 71 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI029 S
CrossesSkunk Ck
Location0.3 N 26th ST Interch
RouteInterstate 29
Coordinates43.53116, -96.78062
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.1 US tons
Inventory rating39 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length284 ft (86.6 m)
Longest span58 ft (17.7 m)
Deck width71 ft (21.5 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,310 (2024)
Projected traffic52,497 by 2044
Trucks12%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I029 S over Skunk Ck built?

It was built in 1989, making it 36 years old in 2025. It was reconstructed in 1996.

What condition is I029 S over Skunk 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 May 2024.

How much traffic does I029 S over Skunk Ck carry?

About 33,310 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is I029 S over Skunk Ck?

The structure is 284 ft (86.6 m) long with a longest span of 58 ft (17.7 m) and a deck 71 ft wide.

Who owns I029 S over Skunk Ck?

It is owned by the State Highway Agency.