Our Projects

Roodborn - Eys, The Netherlands

The design contains several hedgerows and tree planting and a series of swales stretching 1800 m. The swales are made wide and shallow to allow cattle and farm machinery to cross it easily.  

In this project for the Limburg drinking water company (WML) we did the detailing of an existing first sketch. The project aims to reduce runoff from sloping grasslands to prevent flooding downstream, but also to improve infiltration and water quality. Projectpartners: Waterschap Limburg, Natuurkracht, ARK Rewilding Nederland, Provincie Limburg en Brouwers Advies. More on the project here.

A swale design at Roodborn (Eys) to prevent runoff to mitigate floods and drought
Design with swales integrated in the landscape
swale runoff drought and flood prevention
Close-up of a swale just after realization
swale after rains
Swale at Roodborn after the first rains

Priorij Regina Pacis - Valkenburg, The Netherlands

The design contains a series of three swales, some hedgerows and and a new fruit orchard. The field used to be an arable field but is now a pasture. Owner is the adjacent monastery that wanted to contribute to the flood prevention after the July 2021 floodings of the river Geul.

The project is a cooperation between Priorij Regina Pacis, Vereniging Natuurmonumenten, Natuurkracht , the municipality of Valkenburg aan de Geul, Trees for All and The Rain Savers. Publicity on the project here.

swales to prevent runoff and mitigate floods and drought
Swale design to prevent runoff from a former arable field
digging a swale to prevent runoff to mitigate floods and drought
Digging one of the swales and making it absolutely level
Detail of two swales on the field next to the monastery

Natuurlijk Berghof - Wijlre, The Netherlands

Located on the edge of the valley of the river Geul, this young foodforest aims to proof that this kind of agriculture can be a serious business model. The design consist of several ponds, wadi’s, rolling dips in the field roads, swales and keylines. A wadi and a clay lined pond will be realized in early 2026. These elements are cofunded by Natuurkracht and program Waterveiligheid en Ruimte Limburg. 

Design of water elements in foodforest Natuurlijk Berghof
Design of water elements in foodforest Natuurlijk Berghof
Natuurlijk Berghof aereal view
Natuurlijk Berghof aireal view

Quinta das Albelhas - Herdade do Freixo Meio, Portugal

As part of an 8 day Intensive workshop of Water Stories on the syntropic farm of Marc Leiber, the participants designed and constructed a series of checkdams and assisted in building a big pond with a clay core dam. When the winter rains arrived half a year later, the water elements proofed to be a real success!

Checkdam Portugal Beaverdam
Beaver dam style checkdam to prevent erosion in a gully
pond building by making a clay core dam
Pond building by making a clay core dam to block the valley from the bedrock up
Retention pond with clay dam in Portugal
Finished pond before the rains

Raingarden - Schinnen, The Netherlands

In an existing garden we built a natural pond with a clay liner, planting and ornaments. The pond is fed by rainwater from the roof and the terrace.

natural pond with clay liner and buddha
Natural pond with clay liner and ornaments
storm runoff from a roof
Safe solution for runoff from a roof
rainwater collection from roof to pond
Rainwater collection from a roof to feed the pond
handwork on building a pond
Handwork on building the pond

Catchment wide study on nature based solutions for flooding - River Geul, The Netherlands and Belgium

After the 2021 floodings, governments in the province of Limburg joined forces to prevent future flood damage. In the crossborder program Waterveiligheid en Ruimte Limburg (WRL) all kinds of solutions are studied on their effectiveness with sofisticated runoff-models.  Our task is to study the nature-based solutions and implement the effective ones in a catchment wide plans (end 2027). The next phase will be implementation. See this newsletter for more context.  The project is a cooperation between Provicie Limburg, Waterschap Limburg, the municipalities in the Geul catchment, the Ministry of Infrastructure and Water Management, Stroming BV, Wageningen University Research and University of Twente.

table of NbS for flooding
Part of the list of measures under study
Suitability map for a NbS measure in a catchment
One of the 21 suitability maps for the catchment of the Geul

Lubosch Land - Ransdaal, The Netherlands

For a young foodforest with an organic market garden and an event location, we designed ponds, swales and a small gray water system to clean rainwater that was stored in a former manure cellar.    

Lubosch Land foodforest
The entrance of Lubosch Land
lecture on the small water cycle
Giving a lecture on climate change and water cycle restoration
Digging a trench to catch rainwater
Collective effort to dig a trench and plant trees during a public awareness event.
Rainwater retention pond after a rainstorm
An existing pond we enlarged, filled up after a rainstorm

De Wij - Lemiers, The Netherlands

A foodforest and meeting point for people where we made a plan to store rainwater and to slow down and retain the flow of two small creeks. We didn’t get enough support from the water authority to do the river measures, but the rainwater features are in preparation. 

Water design for foodforest De Wij
Water design for De Wij

Foodforest Verloren Land - Milsbeek, The Netherlands

This foodforest has an existing small pond and is located on rather flat terrain with some very dry soils. We advised on enlarging the pond and transforming it into a swimming pond and also on ways to make good use of the roofwater from the buildings to water the crops.  More on our advice here.

Water design for Voedselbos Verloren Land
Water design for Verloren Land

Lochterveld - Moorveld, The Netherlands

On the edge of a plateau arable fields regularly cause runoff into an adjacent nature reserve. The nutrient rich and pesticide loaden sediment threatens biodiversity. We made a basic plan with suggestions on measures to reduce the runoff. 

Analysis of runoff points
Analysis of runoff points
Anti-erosion measures on arable felds
Anti-erosion measures on arable felds
Suggested solutions for a runoff point
Suggested solutions for a runoff point

Heggerhof - Schinnen, The Netherlands

A horse boarding farm with regular water nuisance cause by runoff from it’s own fields. We suggested another layout of the fields ans roads and some retention ponds.

Water design for a horse boarding farm
Water design for Heggerhof

't Sierveld - Mechelen, The Netherlands

This organic vegetable and meat farm is property of the Lenteland Foundation and managed by a young ambitious couple. During removal of drainage systems, on one spot a permament groundwater well appeared. We advised on ways to use this clear water for the farm.

Water plan for a farm
Water plan for 't Sierveld
Removed drainage system
Well in trech of removed drainage system