The Spui is a small tidal river in

South Holland South Holland ( nl, Zuid-Holland ) is a province of the Netherlands with a population of over 3.7 million as of October 2021 and a population density of about , making it the country's most populous province and one of the world's most densely ...

in the

Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...

, connecting the river Oude Maas and the

Haringvliet The Haringvliet is a large inlet of the North Sea, in the province of South Holland in the Netherlands. It is an important estuary of the Rhine-Meuse delta. Near Numansdorp, the Hollands Diep splits into the Haringvliet and the Volkerak es ...

estuary An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environm ...

, separating the islands of

Voorne-Putten Voorne-Putten is an island between the North Sea, the Brielse Meer and the rivers Oude Maas, Spui and Haringvliet in the province of South Holland. Voorne-Putten consists of the two former islands Voorne (the larger, western part) and Put ...

and

Hoeksche Waard The Hoekse Waard (; pre-1947 spelling: Hoeksche Waard) is an island between the Oude Maas, Dordtsche Kil, Hollands Diep, Haringvliet and Spui rivers in the province of South Holland in the Netherlands. The island, part of the namesake municip ...

. Historically, it forked off the Oude Maas at the town of

Oud-Beijerland Oud-Beijerland () is a town and former municipality in the western Netherlands, in the province of South Holland, now a part of the Hoeksche Waard municipality. With a population of 24,575 in 2020, it is the most populous town of the Hoeksche Waa ...

to end in the Haringvliet, but as a (planned) result from the

Delta Works The Delta Works ( nl, Deltawerken) is a series of construction projects in the southwest of the Netherlands to protect a large area of land around the Rhine–Meuse–Scheldt delta from the sea. Constructed between 1954 and 1997, the works con ...

, its flow has been reversed. The Spui emerged as a result of a levee breach during the , a

storm surge A storm surge, storm flood, tidal surge, or storm tide is a coastal flood or tsunami-like phenomenon of rising water commonly associated with low-pressure weather systems, such as cyclones. It is measured as the rise in water level above the ...

that permanently altered the surrounding landscape. There are no bridges or tunnels crossing the Spui, but there is a car ferry from Hekelingen (municipality Nissewaard) to Nieuw-Beijerland (municipality

), and a pedestrian and bicycle ferry between

and Rhoon (in Albrandswaard).

References

Rivers of the Rhine–Meuse–Scheldt delta Hoeksche Waard Rivers of South Holland Rivers of the Netherlands {{Netherlands-river-stub