Complex sentence: The Waaltje runs from Hendrik-Ido-Ambacht, along Oostendam, through Rijsoord, and along Barendrecht to Heerjansdam, where it now connects to the Oude Maas through a pumping station.
Split into simpler sentences: The Waaltje runs from Hendrik-Ido-Ambacht, along Oostendam, through Rijsoord, and along Barendrecht to Heerjansdam. In Heerjansdam it now connects to the Oude Maas through a pumping station.