Urnasch (river)
| Urnaesch | ||
 The Urnäsch near Zürchersmühle, between Urnäsch and Waldstatt |
||
| Data | ||
| Water code | CH : 339 | |
| location | Canton of Appenzell Ausserrhoden , Switzerland | |
| River system | Rhine | |
| Drain over | Sitter → Thur → Rhine → North Sea | |
| source | on the Schwägalp in the Hungbüel at the foot of the Säntis 47 ° 15 ′ 18 ″ N , 9 ° 18 ′ 34 ″ E |
|
| Source height | approx. 1281 m above sea level M. | |
| muzzle | In the Kubel Stein near St. Gallen in the Sitter coordinates: 47 ° 24 '2 " N , 9 ° 19' 30" E ; CH1903: 742 387 / 251675 47 ° 24 '2 " N , 9 ° 19' 30" O |
|
| Mouth height | 588 m above sea level M. | |
| Height difference | approx. 693 m | |
| Bottom slope | approx. 29 ‰ | |
| length | 23.5 km | |
| Catchment area | 93.6 km² | |
| Discharge at the estuary A Eo gauge : 93.6 km² |
MQ Mq |
3.89 m³ / s 41.6 l / (s km²) |
The Urnäsch is a river in the canton of Appenzell Ausserrhoden in Switzerland .
It rises on the Schwägalp at approx. 1281 m above sea level. M. in Hungbüel at the foot of the Säntis . While still on the Schwägalp, it joins the Tosbach before flowing through the municipality of Urnäsch . It lies deeply between Hundwil and Waldstatt in the Hundwilertobel , where it is crossed by the 90 m high Hundwilertobel Bridge with a 143 m span and 269 m length, and near the border with Stein by the old, covered wooden bridge Hundwil ("speaking bridge").
The Urnäsch continues to flow northwards as a border river between the communities of Stein and Herisau in the Appenzell hinterland . It flows into the hamlet of Kubel (Stein) on the border with the canton of St. Gallen , at 588 m above sea level. M. in the sitter . Interestingly enough, the bridge in Kubel is a second "speaking bridge" that crosses the river. This is built in a similar manner to the upper one near Hundwil.
The Urnäsch is 23.5 km long from the source to the confluence with the Sitter.
Web links
Individual evidence
- ↑ a b c d Geoserver of the Swiss Federal Administration ( information )
- ↑ Modeled mean annual discharge. In: Topographical catchment areas of Swiss waters: area outlets. Retrieved August 15, 2016 .