Stadtbach Rapperswil

Stadtbach Rapperswil Jona Canal
Crossing the canal of the Brändlin spinning mill over the Jona
Data
Water code	CH : 13438
location	Rapperswil-Jona , Canton of St. Gallen , Switzerland
River system	Rhine
Drain over	Limmat  → Aare  → Rhine  → North Sea
origin	Junction from the Jona at Gaisrain in Jona 47 ° 14 ′ 5 ″  N , 8 ° 50 ′ 13 ″  E
Source height	approx.  423  m
muzzle	in the Kempraten Bay of Lake Zurich Coordinates: 47 ° 13 ′ 43 ″  N , 8 ° 49 ′ 2 ″  E ; CH1903:  704 395  /  231 758 47 ° 13 '43 "  N , 8 ° 49' 2"  O
Mouth height	406  m
Height difference	approx. 17 m
Bottom slope	approx. 9.3 ‰
length	1.8 km
Weir at the Rapperswil-Jona electricity company
Spinning mill line

The Stadtbach or Jona Canal is a canalised branch of the Jona , a river in the Swiss cantons of Zurich and St. Gallen , which is named after the town of Jona of the same name.

Water supply to the medieval town of Rapperswil

In the early 14th century, the citizens of Rapperswil built the first fountain at the main square . It was fed via wooden "Tüchel" ( Teuchel ), which led the water over four kilometers from Tägernau near Jona into the old town of Rapperswil . The Teuchel were hollowed out tree trunks, mostly larches or pines, which were felled and drilled out in winter. The finished wooden pipes were stored in the “Teuchelweiher” in front of the eastern city wall until they were used.

The maintenance of the water pipeline was guaranteed by regulations and mandates from the council. For example, a “well vogt” was responsible for the production and storage of the Teucheln throughout the year. Tree trunks hollowed out with a large iron nipper (wood drill) were processed into wooden tubes and watered in the so-called “Teuchelweiher” until they were used, in order to ensure the necessary replacement for outgoing pipe sections at all times. Originally, the lines were laid without covering the ground, after several sieges of the medieval city they were dug into the ground. Since the Teucheln nature can permanently replaced had to, it was up to the fountain Vogt, every male population aged 15 to 30 years annually for a day drudgery muster. At the beginning of the 18th century, the council took permanent "Tüchelmanne" under contract.

The lines and the later city stream on the south side of the Halstor , at the "Quellenhof", were led underground into the city through Herrengasse to the city mill via the then open trench and star ditch of the city ​​fortifications , ensured the water supply and, in modern times, provided energy for the commercial operations in the "Giessi" near Lake Zurich .

Stadtbach and Jona Canal

Stadtbach

1380, 1402 and 1405 are documented by mills operated by the Stadtbach in Rapperswil. In the feudal letter of 1405, Duke Leopold of Austria granted Heinrich Müller the use of water for the town mill in return for contributions in kind in the form of grain. The rights of use of the water supply through the Stadtbach passed to the city of Rapperswil in 1412, which regulated the rights of water use through fiefdoms, leases and servitutes . The council minutes from 1570 indicate that there was a well room in the Lehenhof belonging to the Heiliggeist Hospital in Tägernau.

At the “ Gaisrain ” in Jona, the water of the city stream is diverted from the river of the same name by means of a weir, where the amount of water used to be regulated with sluices and directed parallel to the spinning mill road along the old Jonastrasse into the old town. In today's " Teuchelweiherwiese ", site of the former " Teuchelweihers " he crossed today the route of the line S7 S-Bahn Zurich and arrived at Angel / town square in the old town, flowed through the neck and Schmiedgasse, culminating in today's Fischmarktplatz in the upper Lake Zurich. Since the demolition of the city fortifications, the Stadtbach has flowed underground to the " Giessi ", where it flows into Lake Zurich at Kempraten Bay.

The Stadtbach flowed east of the Spinnereistrasse until 1845 and, among other things, drove the hammer mill set up in 1563 outside the city walls. This was acquired in 1803 by the cotton merchant Christian Näf for his spinning machine factory, which his son-in-law Jakob Brändlin-Näf expanded into the first spinning company. The building and the water concession from 1563 passed to Johannes Hürlimann-Burkhard in 1817.

Jonah Canal

At the “ Hackennest ” in Jona, the Brändlin brothers had a weir built in the river around 1838, which diverted part of the water into a channel and crossed under the Aspwald by means of a tunnel. Here the tunnel flowed into the Brändlin pond near the Tägernau and was led via another canal to the Brändlin spinning mill . In the 19th century, a large water wheel supplied the energy for the spinning mill. A small power station is still in operation on the site of the historic spinning mill and the water is led via another canal over the Jona to a weir near the Rapperswil-Jona electricity works. This is where the Stadtbach and the Fabrik Canal unite, with excess water flowing back into the river. Under Johannes Hürlimann's eldest son, Johannes Hürlimann-Brändlin, the Jona Canal was relocated to the western side of the Spinnereistrasse in 1845. With this structural measure, the Stadtbach and the Jona Canal received their current routing along the Spinnereistrasse.

literature

• Peter Röllin: Rapperswil-Jona cultural building set: 36 museums without a roof . Rapperswil-Jona 2005, ISBN 3-033-00478-4 .

Web links

Commons : Stadtbach (Rapperswil-Jona)  - Collection of images, videos and audio files

Individual evidence

1. ↑ Origin on the geoserver of the Swiss federal administration.
2. ^ Confluence on the geoserver of the Swiss federal administration.
3. ↑ Length according to the geoserver of the Swiss Federal Administration.
4. ↑ ^{a b} Website of the Rapperswil-Jona water supply: History of the old Rapperswil fountains ( Memento of the original from October 29, 2013 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , accessed April 6, 2013. 
5. ↑ In the Rapperswil-Jona City Museum , the remains of such water pipes are exhibited together with the corresponding Teuchel auger.
6. ↑ Engelplatz website ( Memento of the original from November 22, 2012 in the Internet Archive ) 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. , accessed April 6, 2013.