Illach
| Illach | ||
 Illach near Wildsteig |
||
| Data | ||
| Water code | EN : 1256 | |
| location | Weilheim-Schongau district | |
| River system | Danube | |
| Drain over | Lech → Danube → Black Sea | |
| source | on the northern slope of the Hochwildfeuerberg (Trauchberg massif, Ammergau Alps ) as Markbächl 47 ° 38 ′ 30 ″ N , 10 ° 55 ′ 59 ″ E |
|
| Source height | approx. 1260 m | |
| muzzle | below the Lech barrage 3 at Urspring in the Lech coordinates: 47 ° 43 '2 " N , 10 ° 49' 46" E 47 ° 43 '2 " N , 10 ° 49' 46" E |
|
| Mouth height | 713 m | |
| Height difference | approx. 547 m | |
| Bottom slope | approx. 24 ‰ | |
| length | 22.6 km | |
| Catchment area | approx. 40 km² | |
| Discharge at the gauge Engen A Eo : 31.7 km² Location: 6.7 km above the mouth |
NNQ (01/16/1973) MNQ 1954-2006 MQ 1954-2006 Mq 1954-2006 MHQ 1954-2006 HHQ (30/07/1990) |
69 l / s 173 l / s 795 l / s 25.1 l / (s km²) 12 m³ / s 24.9 m³ / s |
| Drain |
MNQ MHQ |
1 m³ / s 60 m³ / s |
| Reservoirs flowed through | Rudolfsauer See (destroyed by flooding around 1840) | |
| Communities | Wildsteig , Rottenbuch , Steingaden | |
The Illach is an almost 23 km long tributary of the Lech in Upper Bavaria with a catchment area of around 40 km².
It is fed by a series of spring streams on the northern slope of the Hochwildfeuerberg in the Trauchberg massif ( Ammergau Alps ), the most important of which has its source at an altitude of about 1,260 m and is called the Markbächl . In the upper reaches, the Illach flows mainly in a northerly direction through the area of the municipalities of Wildsteig and Rottenbuch , turns to the west at the Rottenbuch district of Rudersau and finally reaches the Lech directly below Lech barrage 3 at Urspring (municipality of Steingaden ) . Their runoff behavior varies between a runoff of 1 m³ / s ( low water ) and 60 m³ / s ( high water ). These fluctuations are related to pre-alpine precipitation .
Individual evidence
- ^ German Hydrological Yearbook Danube Region 2006 Bavarian State Office for the Environment, p. 130, accessed on October 4, 2017, at: bestellen.bayern.de (PDF, German, 24.2 MB).
