California Delta Conveyance Project (Delta Water Tunnel)
Sector: Tunnel • Location: California, United States
Source: New Civil Engineer
The California Delta Conveyance Project is a major water infrastructure project involving the construction of a 72.5 km long tunnel with an 11.9 m external diameter. It is planned to be the largest water infrastructure investment in California's history, with a planned construction schedule of 14 years. The project faces significant cost and schedule risks due to its scale, low design maturity, an
- Status
- Prospective
- Sector
- Tunnel, Water Supply and Storage, Government
- Location
- California, United States of America
- Updated
- 22 Jul 2026
- Source
- New Civil Engineer
ConstructChat
Ask ConstructChat about California Delta Conveyance Project (Delta Water Tunnel)
Pick a question to edit it, or write your own.
First answer free · no account
Project Information FAQ
Project Information
Participants
Sponsoring Agency |
Status
Original status | planned |
Taiyo status | Prospective |
Taiyo last update | 2026-07-22 |
Contact
| Not available for this record. |
Description
Description | The California Delta Conveyance Project is a major water infrastructure project involving the construction of a 72.5 km long tunnel with an 11.9 m external diameter. It is planned to be the largest water infrastructure investment in California's history, with a planned construction schedule of 14 years. The project faces significant cost and schedule risks due to its scale, low design maturity, and uncertain geotechnical conditions. |
Original sector | Water |
Budget |
Location
Country | United States of America (USA) |
State | California |
Source
Source | New Civil Engineer |
URL |
More Details
Record type | Project |
Sector | Tunnel, Water Supply and Storage, Government |
Article published date | 2025-11-17 |
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
Free account · no card · lands you back on this project