Oberengstringen is a municipality in the district of Dietikon in the canton of Zürich in Switzerland, located in the Limmat Valley (German: Limmattal).

Of the rest of the land, 47.4% is settled (buildings or roads) and the remainder (2.8%) is non-productive (rivers, glaciers or mountains).

Limmatauen Werdhölzli is a protected forest and river area, partially situated in the municipality of Oberengstringen and between the Limmat weir at the Höngg power plant.

Set under protection in 1945, the 1.8 kilometres (1.1 mi) long section of the Limmat and the Werdinsel were renatured, what enhanced the biodiversity, and thus the quality of the river landscape.

The access to the Limmat and the hiking path towards the Fahr Abbey was improved and the area was widened for pedestrians and cyclists.

Orientation boards inform on the endemic flora and fauna, so the riparian zone may be crossed over a 320 metres (1,050 ft) long wooden bridge those material consists of the urban forest.

The costs of 9.4 million Swiss Francs are provided by the city and cantonal governments, and some companies in collaboration with the World Wildlife Fund Switzerland, which claims the place as very important to our rivers and streams, so that they can create their very structure.