US Bridges

I029 S over Ellis and Eastern RR

Fair

Minnehaha County, South Dakota · 0.3 N 12th ST Interch · Structure no. 000000050175207

Built
2004
21 years old
Condition
Fair
inspected December 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
94 ft
1 main span
Daily traffic
32,455
2024 count
Owner
State
State Highway Agency

About this bridge

I029 S over Ellis and Eastern RR is a steel stringer/multi-beam or girder carrying I029 S over Ellis and Eastern RR in Minnehaha County, South Dakota. It was built in 2004, so it is 21 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 32,455 vehicles a day, roughly 11% of them trucks, projected to reach 51,149 by 2044. The structure is 94 ft (28.7 m) long and 86 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI029 S
CrossesEllis and Eastern RR
Location0.3 N 12th ST Interch
RouteInterstate 29
Coordinates43.54778, -96.78063
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating95.9 US tons
Inventory rating57.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length94 ft (28.7 m)
Longest span90 ft (27.4 m)
Deck width86 ft (26.3 m)
Roadway width84 ft (25.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,455 (2024)
Projected traffic51,149 by 2044
Trucks11%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I029 S over Ellis and Eastern RR built?

It was built in 2004, making it 21 years old in 2025.

What condition is I029 S over Ellis and Eastern RR 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 December 2022.

How much traffic does I029 S over Ellis and Eastern RR carry?

About 32,455 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is I029 S over Ellis and Eastern RR?

The structure is 94 ft (28.7 m) long with a longest span of 90 ft (27.4 m) and a deck 86 ft wide.

Who owns I029 S over Ellis and Eastern RR?

It is owned by the State Highway Agency.