Goldach (Lake Constance)

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Goldach
Bridge over the Goldach in Trogen

Bridge over the Goldach in Trogen

Data
Water code CH : 306
location Switzerland
River system Rhine
Drain over Rhine  → North Sea
source at the Ruppenpass , Canton Appenzell Ausserrhoden
47 ° 23 ′ 37 ″  N , 9 ° 30 ′ 15 ″  E
Source height 1105  m above sea level M.
muzzle in Lake Constance near Goldach Coordinates: 47 ° 29 '23 "  N , 9 ° 28' 40"  E ; CH1903:  753 658  /  261 882 47 ° 29 '23 "  N , 9 ° 28' 40"  O
Mouth height 395  m above sea level M.
Height difference 710 m
Bottom slope 38 ‰
length 18.5 km
Catchment area 50.44 km²
Discharge at the Goldach gauge , Bleiche
A Eo : 50.44 km²
NNQ (1976)
MNQ
MQ
Mq
MHQ
HHQ (2002)
90 l / s
1 m³ / s
1.42 m³ / s
28.2 l / (s km²)
2.49 m³ / s
155 m³ / s
Left tributaries Bruederbach, Säglibach
Right tributaries Sägibach, Moosbach, Landgraben, Hochstaudenbach
Medium-sized cities St. Gallen
Communities Trogen , Rehetobel , Speicher , Eggersriet , Untereggen , Mörschwil , Goldach , Tübach , Horn

The Goldach is an 18.5 kilometer long tributary of Lake Constance in the cantons of Appenzell Ausserrhoden , St. Gallen and Thurgau in Switzerland .

River course

In its upper reaches, the Goldach is hidden in deep ravines and forests in many places , so that it is difficult to explore. Only at its lower course, after the Martinstobel, is it easier to see and the river is less wild.

The river rises in the border area between the municipality of Trogen (canton of Appenzell Ausserrhoden) and the district of Oberegg (canton of Appenzell Innerrhoden) at around 1,060 meters above sea level near the Ruppenpass . Then it flows, fed by many streams, in a north-westerly direction to the former Bädli Trogen. From there on, the river continues to flow in a deep ravine . At the confluence with the Säglibach in Chastenloch, it forms the border between the municipality of Speicher and Rehetobel . From now on, the course of the river turns in a more northerly direction, past Zweibrücken (Rehetobel) , where the cantonal road Rehetobel - Speicherschwendi crosses the river, to Achmüli at 619 meters above sea level. From here on, the Goldach forms the cantonal border between St. Gallen and Appenzell Ausserrhoden.

Now the river runs for about two kilometers in a westerly direction in a deep ravine, until the confluence with the Bernhardsbach, where the Goldach finally leaves the Appenzellerland and now forms the border between the city of St. Gallen and the municipality of Eggersriet . In front of the Martinstobel, the Rappenstein ruins are enthroned on the western side of the river . Above and below the Martinsbrücke, the ravine is again so deep that the Goldach is difficult to access. It flows further north after the Martinsbrücke.

At the confluence with the mountain stream, the ravine expands into the so-called Goldachtobel, which is wider and through which a hiking trail also leads. The whole ravine is still heavily forested. In this section the Goldach forms the municipal boundary of Untereggen and Mörschwil and later the municipalities of Goldach and Mörschwil. After Bluemenegg, the A1 motorway and then the Rorschach – St. Gallen the Goldach.

Now the ravine finally opens and the Goldach flows past the Bruggmühle in a north-easterly direction to Lake Constance . Shortly before the confluence, it forms the border to the municipality of Horn and thus to the canton of Thurgau.

Individual evidence

  1. Geoserver of the Swiss Federal Administration ( information )
  2. Goldach measuring station, Bleiche from 1962 to 2003. (PDF) In: Federal Office for the Environment. Retrieved November 20, 2016 .

Web links

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