Hollands Diep is a significant waterway located near the Gemeente Moerdijk, a municipality in the southern part of the Netherlands. This tidal estuary, formed by the confluence of several rivers, including the Rhine and Meuse, stretches from the North Sea deep into the heart of the country, running adjacent to the Gemeente Moerdijk and playing a pivotal role in the region’s trade, transportation, and cultural heritage.

Its location near Gemeente Moerdijk makes it a critical part of the municipality’s historical and economic landscape.

This tunnel is situated on the border of the province of North Brabant and Goeree-Overflakkee South-Holland. It’s located near Willemstad when you drive by car on the A29 and take the exit tot the N59 direction.