Knoop Natuur- en Waterbouw has been in the contracting business since 1990. On the basis of continuous development and creativity we have grown from small-scale dredging to carrying out major nature restoration projects in wetlands. Complex and vulnerable areas, such as wetlands, demand customised work, in-depth understanding, insight and creativity in execution. And linking the authority’s knowledge of the terrain to the technical implementation possibilities.


Machinery was developed in-house that lends itself extremely well to working in poor load-bearing terrains, such as deltas and wetlands. The combination consisting of the Waterking amphibious excavator and the shredder dredger makes us unique in the world. The amphibious excavators can operate not only on land but also on water. Our work starts where most excavators stop.

Using the shredder dredger we are able to transport any released material (such as reed roots and cuttings) to a disposal site with the aid of a pressure pipeline. The material can even be pumped over a distance of 7 kilometres. We are contracted to perform work for, among others, nature conservation authorities and water boards. In addition to contracting, we have a dredging equipment rental and sales department.


Knoop Natuur- en Waterbouw, is a trade name of Knoop Baggerwerken. Knoop Baggerwerken is NEN-EN-ISO 9001:2015 and SSC** (2008/5.1) certified.

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