What is the latest status of the project “Dakota Mainstem Regional Water System”?

The status recorded for “Dakota Mainstem Regional Water System” is planning.

What is the budget and commercial profile for the project “Dakota Mainstem Regional Water System”?

Taiyo normalizes the budget of “Dakota Mainstem Regional Water System” to USD 10000000000.

Where can I verify the source and access all details for “Dakota Mainstem Regional Water System”?

This Taiyo project page references U.S. News & World Report along with the original URL (https://www.usnews.com/news/best-states/iowa/articles/2026-05-04/4-big-water-projects-underway-in-south-dakota). Taiyo standardizes official data into a consistent, searchable project profile.

Dakota Mainstem Regional Water System

Sector: Water Supply and Storage • Location: Yankton, South Dakota, United States

Source: U.S. News & World Report

Project

Planning

A massive proposed water system in the planning stages to provide water to a large area of eastern South Dakota and parts of Minnesota and Iowa. The plan includes building a pipeline up to 96 inches in diameter to carry treated water from Missouri River aquifers near Yankton. The project could take more than 20 years to build and cost as much as $10 billion.

Status: Prospective
Sector: Water Supply and Storage, Commercial
Location: Yankton, South Dakota, United States of America
Updated: 22 Jul 2026
Source: U.S. News & World Report

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Project Information

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The project “Dakota Mainstem Regional Water System” is an infrastructure initiative in the Water Supply and Storage sector, located in Yankton, South Dakota, United States. Taiyo aggregates data on it from U.S. News & World Report.

Participants

Not available for this record.

Status

Original status	planning
Taiyo status	Prospective
Taiyo last update	2026-07-22

Contact

Not available for this record.

Description

Description	A massive proposed water system in the planning stages to provide water to a large area of eastern South Dakota and parts of Minnesota and Iowa. The plan includes building a pipeline up to 96 inches in diameter to carry treated water from Missouri River aquifers near Yankton. The project could take more than 20 years to build and cost as much as $10 billion.
Original sector	Water Supply
Budget

Location

Country	United States of America (USA)
State	South Dakota
City	Yankton

Source

Source	U.S. News & World Report
URL

More Details

Record type	Project
Sector	Water Supply and Storage, Commercial
Article published date	2026-05-07

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Dakota Mainstem Regional Water System

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