Monday, 03 August 2020 | 16:58
View by:

The New Sea Lock – what’s happening in June?

Thursday, 07 June 2018 | 12:00

The construction of the lock gate chamber of the outer head (number 1 in the picture) is scheduled for near completion in June. The diaphragm walls for the guard walls (numer 2 in the picture) will also be constructed this month, just like the flood defence between the new sea lock and the North Lock (number 3 in the picture).

Outer head lock gate chamber
This month, the outer head lock gate chamber will get close to its final dimensions. With its four metres thick floor, the underside of which lies at 5 metres below NAP (Amsterdam Ordnance Datum) and its six metres thick walls with a height of 17 metres above NAP, it surely is an impressive structure. Its total floor area is 26 by 80 metres. Once the required dimensions are reached, preparations can be made to sink the outer head lock gate chamber; this sinking operation is planned for later in the summer.

Image: Port Of Amsterdam

Diaphragm walls for the guard wall
Work activities are also taking place in preparation for the construction of the guard wall. This is a concrete wall along the approach channel to the new sea lock. The concrete structure of the guard wall is situated on the north (i.e. seaward) side of the Middle Lock. In June, the diaphragm walls for the future guard walls will be built on that side of the Middle Lock. The concrete structure will be built by excavation in the ground after which it will be anchored and built up until the required flood defence height of 8.85 metres above NAP in accordance with newly adopted regulations. After that, everything north of that new concrete structure will be excavated to form the future outer approach channel to the new sea lock.

Flood defence
Between the new sea lock and the existing North Lock, a new flood defence is being built. In the future, a double concrete wall will be situated between the two locks. This double wall, with a height of approximately four metres, will act as a flood defence. The future elevated public road will be constructed between these two concrete walls.
Source: Port Of Amsterdam

    There are no comments available.
    In order to send the form you have to type the displayed code.