Widening of the river Bergsche Maas at the Overdiepse Polder allows more water to flow through the river during periods of high water, the dyke has been lowered so that it will not present a barrier to the drainage of excess water. Farmers are still able to live and work due to the construction of dwelling mounds (so called terps)..© 23 sept. 2016 Marco van Middelkoop/Aerophoto-Schiphol