Werkhaven Spaarbekken Honderd en Dertig is an access point associated with one of three large water-storage reservoirs located in Nationaal Park De Biesbosch.

The Honderd en Dertig reservoir, named after the agricultural polder it replaced, covers approximately 219 hectares and is one of the three Biesbosch spaarbekkens — alongside Petrusplaat and De Gijster — that together form the backbone of drinking and industrial water supply for millions of people in southwestern Netherlands.

The reservoirs are filled with surface water drawn from the Maas and managed by Waterwinningbedrijf Brabantse Biesbosch (WBB). Selective water intake and natural pre-purification occur within the basins before the water undergoes further treatment.

A dedicated pump station serves the Honderd en Dertig bekken as part of the broader infrastructure that continuously delivers purified water to the region.