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Delta Conveyance Project (Delta Tunnel)

Sector: Tunnel • Location: California, United States

Source: Sierra Club

Project
Planned

A controversial 45-mile tunnel project aimed at securing California's water future by diverting water through the Sacramento-San Joaquin Delta. The project faces opposition due to environmental concerns, potential harm to the Delta ecosystem, and financial risks to water ratepayers.

Status
Prospective
Sector
Tunnel, Water Supply and Storage, Government
Location
California, United States of America
Updated
22 Jul 2026
Source
Sierra Club

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Project Information

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The project “Delta Conveyance Project (Delta Tunnel)” is an infrastructure initiative in the Tunnel sector, located in California, United States. Taiyo aggregates data on it from Sierra Club.

Participants

Sponsoring Agency

Status

Original status

Planned

Taiyo status

Prospective

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

A controversial 45-mile tunnel project aimed at securing California's water future by diverting water through the Sacramento-San Joaquin Delta. The project faces opposition due to environmental concerns, potential harm to the Delta ecosystem, and financial risks to water ratepayers.

Original sector

Water

Budget

Location

Country

United States of America (USA)

State

California

Source

Source

Sierra Club

URL

More Details

Record type

Project

Sector

Tunnel, Water Supply and Storage, Government

Article published date

2025-06-17

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