Lorze

Lorze
Lorze in train
Data
Water code	CH : 676
location	Switzerland Canton of Zug Canton Zurich Affoltern district
River system	Rhine
Drain over	Reuss  → Aare  → Rhine  → North Sea
source	from the Ägerisee near Unterägeri 47 ° 8 ′ 13 ″  N , 8 ° 35 ′ 20 ″  E
Source height	724  m above sea level M.
muzzle	at Obfelden in the Reuss coordinates: 47 ° 14 '53 "  N , 8 ° 24' 39"  E ; CH1903:  673 596  /  233472 47 ° 14 '53 "  N , 8 ° 24' 39"  O
Mouth height	387  m above sea level M.
Height difference	337 m
Bottom slope	12 ‰
length	27 km
	31 km (with part of the lake)
Catchment area	298.88 km²
Discharge at the Frauenthal A Eo gauge : 262 km² Location: 4.5 km above the mouth	NNQ (1947) MNQ 1935–2016 MQ 1935–2016 Mq 1935–2016 MHQ 1935–2016 HHQ (2007)	650 l / s 3.13 m³ / s 7.41 m³ / s 28.3 l / (s km²) 10.8 m³ / s 38.3 m³ / s
Left tributaries	Hüribach , Rigiaa
Right tributaries	Haselbach
source muzzle Source and mouth of the Lorze
The canton of Zug and its waters

The Lorze is with an average water supply of about 7 m / s of the main flow of Canton train in Switzerland .

geography

The Lorze rises from the Ägerisee and flows first in a northerly, then in a westerly direction through the Lorzentobel , a deeply cut gorge spanned by the Lorzentobel bridge, and there it passes the Höllgrotten . At the exit of the ravine near Baar , the river turns south and flows into Lake Zug to the west of Zug . When Villette Park in Cham river exits the lake and flows in a northerly direction until it in Obfelden in the Reuss flows.

The length of the Lorze is around 17 kilometers between the Ägeriseausflow and the Zugersee, and around 10 kilometers between the Zugersee outflow and the confluence with the Reuss.

The Lorze is dammed at three points between the Zugersee and its confluence with the Reuss to generate hydropower: at the Untermühle hydropower plant in Cham , the Hagendorn hydropower plant in Cham and the Frauental hydropower plant in Frauental . In Baar in particular, the water power of the Lorze was used for the flourishing textile industry in the 19th century.

• 

  After leaving Lake Zug in Cham

• 

  The mouth of the Lorzen near Obfelden, the Reuss on the right

In the course of the construction of the A4a autobahn , the Lorze, which lay on the planned section of the autobahn, was relocated between Blickensdorf and Lake Zug. A new river bed was dug over a length of 3.8 kilometers and the river mouth was moved closer to the city of Zug. This improved the mixing of Lake Zug, since the inflow and outflow are now further apart. Furthermore, the higher transport volume of the New Lorze has since prevented floods that previously caused great damage in the Lorzen plain. The 180,000 cubic meters of excavation, which, consisting of fine sand, were not suitable for road construction, were used to build the Lorzeninsel in Lake Zug, which serves as a bird sanctuary. The project, completed in 1976, cost 30 million francs.

bridges

About 100 bridges cross the Lorze from the outflow from the Ägerisee to the confluence with the Reuss.

See also: List of bridges over the Lorze , List of bridges over the Alte Lorze

Web links

Commons : Lorze  - collection of images, videos and audio files

• Lorze industrial path
• Renato Morosoli: Lorze. In: Historical Lexicon of Switzerland .

Individual evidence

1. ↑ ^{a b c} Geoserver of the Swiss Federal Administration ( information )
2. ↑ Evaluations of the water network. (XLSX) (No longer available online.) FOEN , December 2013, archived from the original on June 13, 2018 ; Retrieved on August 30, 2017 (listing of Swiss rivers> 30km). Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.  
3. ↑ Modeled mean annual discharge. In: Topographical catchment areas of Swiss waters: sub-catchment areas 2 km². Retrieved August 30, 2017 . 
4. ↑ Frauenthal measuring station 1935–2016 (PDF) Federal Office for the Environment FOEN