Nili Tunnels drainage – Cross Israel Highway

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Nili Tunnels drainage – Highway 6 (Cross Israel Highway)

ניקוז מנהרות ניל"י - כביש 6
ניקוז מנהרות ניל"י - כביש 6
The Nili Tunnels were dug near Moshav Givat Nili, within the framework of the construction of Trans-Israel Highway (Highway 6) by means of the Cut & Cover method.
The tunnels length – about 400 m each.
The tunnels objective – an ecologic underpass designated to allow the animals living on both sides of the road to pass harmlessly from one side to the other.
Water accumulation outside the tunnel may cause leaks – which will harm the concrete and the tunnel’s systems. Moreover, water accumulation within the soil surrounding the tunnel will increase the ground’s pressure on the concrete.
On account of these two factors, it was decided to address the problem of rainwater draining out of the engineering structure.