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Interstate 29 and 85th Street diverging diamond interchange

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

Source: Pigeon605

Project
Under Construction

Construction of the city's fourth diverging diamond interchange at 85th Street and Interstate 29, including grading, pipe installation, bridge abutments, underground utilities, pedestrian underpass, concrete surfacing, signage, street lighting, and traffic signals. 85th Street will be closed from Tallgrass to Sundowner avenues during construction. The interchange is expected to be completed by the

Status
Under Construction
Sector
Bridge, Cement, Tunnel, Road
Location
Sioux Falls, South Dakota, United States of America
Updated
22 Jul 2026
Source
Pigeon605

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Project Information

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The project “Interstate 29 and 85th Street diverging diamond interchange” is an infrastructure initiative in the Bridge sector, located in Sioux Falls, South Dakota, United States. Taiyo aggregates data on it from Pigeon605.

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

Construction of the city's fourth diverging diamond interchange at 85th Street and Interstate 29, including grading, pipe installation, bridge abutments, underground utilities, pedestrian underpass, concrete surfacing, signage, street lighting, and traffic signals. 85th Street will be closed from Tallgrass to Sundowner avenues during construction. The interchange is expected to be completed by the end of 2027.

Original sector

Transportation

Location

Country

United States of America (USA)

State

South Dakota

City

Sioux Falls

Source

Source

Pigeon605

URL

More Details

Record type

Project

Sector

Bridge, Cement, Tunnel, Road

Article published date

2026-03-21

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