New willow season started again! Fresh willow trees are again fully available.
Fascine mattress / crib

Fascine mattress / crib

Extensive experience

Fascine mattress are made up of wedges. These are bundles of twisted willow wood, which are tied into mats with biodegradable lashing rope. They have been used for over 100 years to protect soils and banks against erosion by water. In road construction they prevent subsidence. Fascine mattress can also be made with plastic cloth: geotextile or bentonite.

Van Aalsburg BV has knowledge and experience for the traditional manufacture of all types of constructions: Fascine mattress for bottom protection and crib for bank protection . "

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Fascine mattress / crib - Kiwa ISO 9001
Fascine mattress / crib - Kiwa ISO 14001
Fascine mattress / crib - Kiwa VCA
Fascine mattress / crib - Erkend leerbedrijf
Fascine mattress / crib - SIKB Bodembeheer
Fascine mattress / crib - FSC
Fascine mattress / crib - C02 prestatieladder


Classic fascine mattresses are often big and enormously heavy. That is why they are made on pipes, which enables them to slide smoothly and undamaged into the water. A tugboat or crane ship can move the fascine mattress to the desired location with tow lines.

First of all, a framework of faggots is constructed for the first layer, and then a second layer at right angles to the first. Each intersection is secured with lashing rope, which also forms the basis for further tying the brushwood to the fascine mattress. The lashing rope contains sisal-polypropylene which tightens when wet.

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Fascine mattress / crib - Framework
Fascine mattress / crib - Sustainability and environmental friendliness

Sustainability and environmental friendliness

Next, brushwood bundles are evenly distributed between the top layer of faggots to a thickness of 10 to 15 cm. A second layer of brushwood is placed on top of these, at right angles to the first layer. The customer determines the thickness of the faggots and the layer of brushwood. The customer could be: Rijkswaterstaat (Directorate-General for Public Works and Water Management), a municipality or a contractor.

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Frequently Asked Questions

What is the purpose of a fascine mattress?
Fascine mattresses protect embankments and riverbeds from erosion.
What is a fascine mattress made from?
Fascine mattresses are made from faggots (bundles of willow branches), sometimes combined with geotextile or bentonite. They are sunk by dumping basalt rocks onto them.
How do you sink a fascine mattress?
The fascine mattress is attached to a float. A crane boat tows the float to the destination. The top end of the fascine mattress is sunk using a sinking beam and the rest by dumping rocks onto it.