The Wüeribach (also called the Dorfbach and Fischbach in its upper reaches) is a tributary of the

Reppisch The Reppisch is a river in Switzerland. It rises in the Türlersee and joins the Limmat as its tributary, near the town of Dietikon. The Reppisch flows in the Säuliamt (Affoltern district), canton of Zürich, an area featuring still partially u ...

, around 8 kilometres long, in the

Canton of Zürich The canton of Zurich is an administrative unit (Swiss canton, canton) of Switzerland, situated in the northeastern part of the country. With a population of (as of ), it is the most populous canton of Switzerland. Zurich is the ''de facto'' Capi ...

Switzerland Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...

. It rises in the municipality of Bonstetten, flows through the narrow ''Wüerital'' valley and reaches the Reppisch valley near

Birmensdorf Birmensdorf is a Municipalities of Switzerland, municipality in the district of Dietikon (district), Dietikon in the Cantons of Switzerland, canton of Zurich (canton), Zürich in Switzerland. History Birmensdorf is first mentioned in 876 as ''Pi ...

, wo it empties, parallel to the rather smaller Lunnerenbach, into the lower Reppisch. The Wüeribach is the longest and biggest tributary of the Reppisch and has an average flow rate of 310 L/s.

Geography

Course

The Wüeribach rises as the ''Dorfbach'' at in the forest area of ''Birch'' above Bonstetten. From here it flows initially mainly in a northwestern direction through the village of Bonstetten, much of it being canalized as it passes through. It leaves the village and runs, having been straightened out, through fields across a wide plain in a northern direction. Shortly afterwards the stream reaches the municipal boundary with

Wettswil am Albis Wettswil am Albis is a Municipalities of Switzerland, municipality in the district of Affoltern (district), Affoltern in the Cantons of Switzerland, canton of Zurich (canton), Zürich in Switzerland. Geography Wettswil am Albis (sometimes writte ...

, where it is called the ''Fischbach''. It passes to the west of the village and collects the waters of the roughly four-kilometre-long ''Fridgraben''. It reaches the northern municipal boundary with Birmensdorf, where the stream snakes through the narrow ''Wüerital'' into the Reppisch valley. This valley was formed in the last ice age as a meltwater gully of the Wettswiler and the Aescher Zunge of the Reuss Glacier. The Wüeribach now reaches Birmensdorf, collects the Aescherbach from the left and finally discharges into the Reppisch at an elevation of .

Catchment

The catchment area is 14.6 km² and extends over the districts of Affoltern and

Dietikon Dietikon is the fifth biggest city of the canton of Zürich in Switzerland, after Zürich, Winterthur, Uster and Dübendorf. It is the capital of the same-named district of Dietikon and part of the Zürich metropolitan area. Geography The ...

. 51.6% of the catchment area is used for agriculture, 24.6% is built up and 23.9% is near-natural vegetation and forest. The highest point of the catchment area is in Islisberg, its average elevation is In the south is the catchment of the Hofibach, which drains into the Jonen; in the west is the catchment of the Aescherbach and to the east and north lies the valley of the Reppisch.

Tributaries

First- and higher-order tributaries of the ''Wüeribach'' with their length: ;Wüeribach source () *Strassacherbach (''left''), 1.1 km **Bodenfeldbach (''left''), 0.8 km *Fluechbach (''left''), 2 km **Dornmattbach (''right''), 0.5 km **right-hand side arm (''right''), 0.1 km **Hirschenbach (''left''), 0.9 km ***Chäserenbach (''right''), 0.2 km **Lüttenbergbach (''left''), 0.5 km **Schrannenbach/Schrannenbächli (''left''), 0.3 km *Fridgraben (''right''), 4,2 km **Isenbach (''left''), 0.4 km ***Schladmatterbach (''left''), 0.3 km **Schachenbach (''right''), 1.1 km **Hofächerbach (''right''), 0.4 km *Wettswiler West Channel (''left''), 0.7 km *Filderenbach (''left''), 1.3 km *Täntenbach (''left''), 1.1 km *Cholholzbächli (''left''), 0.1 km *Gättikerbächli (''left''), 0.2 km *Aescherbach (''left''), 3.2 km **Sunnebrunne (''left''), 0.1 km **Moosbächli (''right''), 0.2 km **Uelisweidbächli (''right''), 1 km **Stierenwaldbach (''left''), 0.8 km ***Eichholzbach (''right''), 0.5 km **Chürzibach (''right''), 1.5 km **Mättlibach (''left''), 0.2 km **Rebacherbach (''right''), 0.2 km **Sägissenbach (''left''), 0.2 km **Chilstigbächli (''left''), 0.2 km ;Wüeribach mouth ()

References

External links