What is the latest status of the project “Delta Conveyance Project (Delta Tunnel)”?

The status recorded for “Delta Conveyance Project (Delta Tunnel)” is cancelled.

What is the budget and commercial profile for the project “Delta Conveyance Project (Delta Tunnel)”?

Taiyo normalizes the budget of “Delta Conveyance Project (Delta Tunnel)” to USD 60000000000.

Where can I verify the source and access all details for “Delta Conveyance Project (Delta Tunnel)”?

This Taiyo project page references Daily Kos along with the original URL (https://www.dailykos.com/stories/2026/5/20/800042037/community/new-california-water-coalition-releases-water-renaissance-vision-for-the-states-water-future-that-rules-out-the-delta-tunnel/). Taiyo standardizes official data into a consistent, searchable project profile.

Delta Conveyance Project (Delta Tunnel)

Sector: Water Supply and Storage • Location: California, United States

Source: Daily Kos

Project

Cancelled

A proposed water infrastructure project by the California Department of Water Resources to increase water deliveries from the Delta by building a tunnel. The project is controversial due to ecological concerns and high costs, with a projected cost upwards of $60 billion and an expected water yield of 0.4 million acre-feet annually. The project has faced legal and financial setbacks, including dism

Status: Closed
Sector: Water Supply and Storage, Tunnel, Commercial
Location: California, United States of America
Updated: 22 Jul 2026
Source: Daily Kos

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Project Information

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The project “Delta Conveyance Project (Delta Tunnel)” is an infrastructure initiative in the Water Supply and Storage sector, located in California, United States. Taiyo aggregates data on it from Daily Kos.

Participants

Not available for this record.

Status

Original status	cancelled
Taiyo status	Closed
Taiyo last update	2026-07-22

Contact

Not available for this record.

Description

Description	A proposed water infrastructure project by the California Department of Water Resources to increase water deliveries from the Delta by building a tunnel. The project is controversial due to ecological concerns and high costs, with a projected cost upwards of $60 billion and an expected water yield of 0.4 million acre-feet annually. The project has faced legal and financial setbacks, including dismissal of bond financing validation actions.
Original sector	Water Supply
Budget

Location

Country	United States of America (USA)
State	California

Source

Source	Daily Kos
URL

More Details

Record type	Project
Sector	Water Supply and Storage, Tunnel, Commercial
Article published date	2026-05-23

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Delta Conveyance Project (Delta Tunnel)

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