Four sections of the main tunnel
| Contract section | Contractor | Main tunnel section | TBMa | Drive site | Reception site |
|---|---|---|---|---|---|
| Western | BMB | Main Tunnel A | TBM A (Rachel) | Carnwath Road Riverside | Acton Storm Tanks |
| Central | Flo | Main Tunnel B | TBM B (Millicent) | Kirtling Street | Carnwath Road Riverside |
| Central | Flo | Main Tunnel C | TBM C (Ursula) | Kirtling Street | Chambers Wharf |
| Eastern | CVB | Main Tunnel D | TBM D (Selina) | Chambers Wharf | Abbey Mills Pumping Station |
| Contract section | Contractor | Main tunnel section | Drive site | Reception site | |
|---|---|---|---|---|---|
| Western | Main Tunnel A | Carnwath Road Riverside | Acton Storm Tanks | ||
| Central | Flo | Main Tunnel B | Kirtling Street | Carnwath Road Riverside | |
| Central | Flo | Main Tunnel C | Kirtling Street | Chambers Wharf | |
| Eastern | Main Tunnel D | Chambers Wharf | Abbey Mills Pumping Station |
aTideway’s TBMs were named after women of historical significance in the fields of engineering, science and construction, or with a local connection to their launch site. Nominations came from tideway team members and then a shortlist was put to a public vote (Tideway, 2017)
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