logo

I-29 and 85th Street Diverging Diamond Interchange Construction

Sector: Bridge • Location: Sioux Falls, South Dakota, United States

Source: KELOLAND

Project
Under Construction

This project includes building the interchange, installing underground utilities, a pedestrian underpass, grading, concrete surfacing, signage, street lighting, and traffic signals. Construction is ongoing with bridge piers being built and backfill material being placed in the median along the future ramp area.

Status
Under Construction
Sector
Bridge, Tunnel, Cement, Commercial, Road
Location
Sioux Falls, South Dakota, United States of America
Updated
22 Jul 2026
Source
KELOLAND

ConstructChat

Ask ConstructChat about I-29 and 85th Street Diverging Diamond Interchange Construction

Pick a question to edit it, or write your own.

First answer free · no account

I am a

Project Information FAQ

Project Information

3 Q
The project “I-29 and 85th Street Diverging Diamond Interchange Construction” is an infrastructure initiative in the Bridge sector, located in Sioux Falls, South Dakota, United States. Taiyo aggregates data on it from KELOLAND.

Participants

Not available for this record.

Status

Original status

under construction

Taiyo status

Under Construction

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

This project includes building the interchange, installing underground utilities, a pedestrian underpass, grading, concrete surfacing, signage, street lighting, and traffic signals. Construction is ongoing with bridge piers being built and backfill material being placed in the median along the future ramp area.

Original sector

Transportation

Location

Country

United States of America (USA)

State

South Dakota

City

Sioux Falls

Source

Source

KELOLAND

URL

More Details

Record type

Project

Sector

Bridge, Tunnel, Cement, Commercial, Road

Article published date

2026-05-09

More on this project

Research

Free account

View all details

You are reading the public part. A free account opens the rest:

  • Every detail on this project
  • News and media coverage
  • Technical research
View all details

Free account · no card · lands you back on this project