![TBM Rachel Breakthrough](/media/1464/acton-rachel-bt.png?anchor=center&mode=crop&width=400&height=270&rnd=132778990360000000)
TBM Rachel Breakthrough
![Site overview](/media/3517/acton-storm-tanks-site.png?anchor=center&mode=crop&width=400&height=270&rnd=132778990140000000)
Site overview
![Underground Engineering](/media/5192/underground-engineering.jpg?anchor=center&mode=crop&width=400&height=270&rnd=132778989860000000)
Underground Engineering
Acton Storm Tanks, the most western site on the Tideway project, is an existing Thames Water pumping station and storm water tanks site. This is also the start of the main tunnel and is intercepting the existing Acton Storm Relief combined sewer overflow.