Thames Tideway Tunnel
Sector: Waste Processing and Treatment • Location: London, England, United Kingdom
Source: Time Magazine
London's new £4.6 billion ($6.1 billion) "super sewer"—the largest water infrastructure project in U.K. history—prevents 95% of untreated sewage discharges. Over 10 years of construction, the 15.5-mile Thames Tideway Tunnel created 21 connections with the original sewers to capture, divert, and treat sewage that would otherwise end up in the river. By February 2025, it became fully operational and
- Status
- Closed
- Sector
- Waste Processing and Treatment, Water Supply and Storage, Tunnel
- Location
- London, England, United Kingdom
- Updated
- 22 Jul 2026
- Source
- Time Magazine
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Project Information
Participants
| Not available for this record. |
Status
Original status | completed |
Taiyo status | Closed |
Taiyo last update | 2026-07-22 |
Contact
| Not available for this record. |
Description
Description | London's new £4.6 billion ($6.1 billion) "super sewer"—the largest water infrastructure project in U.K. history—prevents 95% of untreated sewage discharges. Over 10 years of construction, the 15.5-mile Thames Tideway Tunnel created 21 connections with the original sewers to capture, divert, and treat sewage that would otherwise end up in the river. By February 2025, it became fully operational and had already collected 2,200 Olympic-sized swimming pools worth of sewage. A year later, it had collected more than three times that amount. The project also delivered public parks and art installations along the waterway. |
Original sector | Water Infrastructure |
Budget |
Location
Country | United Kingdom (UK) |
State | England |
City | London |
Source
Source | Time Magazine |
URL |
More Details
Record type | Project |
Sector | Waste Processing and Treatment, Water Supply and Storage, Tunnel |
Article published date | 2026-05-03 |
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