English to Russian Tech/Engineering Construction / Civil Engineering прокладка трубопровода

I think there was a question about damming and diverting the water use and moving it around the river course during construction. To be clear, this is a common international practice. It is called “dam and divert”. It is a practice we would normally see on a large project like this, but it has not been allowed by the local authorities. Sakhrybvod has not allowed the dam and divert method for crossing these rivers, and so it is not being performed out in the field. They are allowing, in limited cases, a flim pipe method. There is ongoing dialogue about that, but, in terms of traditional dam and divert, it is not an option here; it is not being implemented and neither is dam and pump or any of those variations.

Речь идет о пересечении рек при прокладке трубопровода. Как по-русски принято называть эти два метода? Спасибо.