Course of the Ergolz ( interactive map )
|Water code||CH : 2|
|Drain over||Rhine → North Sea|
|muzzle||between Augst and Kaiseraugst in the Rhine
|Height difference||570 m|
|Bottom slope||19 ‰|
|Catchment area||301 km²|
A Eo : 301 km²
at the mouth
|4.51 m³ / s
15 l / (s km²)
| Discharge at the Liestal
A Eo gauge : 261 km²
|100 l / s
1.59 m³ / s
3.73 m³ / s
14.3 l / (s km²)
6.7 m³ / s
152 m³ / s
|Small towns||Sissach , Liestal|
The Ergolz near Sissach
The Ergolz in Oltingen
Source and mouth of the Ergolz
The Ergolz is the 30 kilometer long main river in the Basel area . Your entire course is in the Swiss canton of Basel-Landschaft . It rises in the Folded Jura on the Geissflue in the upper Basel area and flows into the Rhine at Augst .
The catchment area of the Ergolz corresponds to the districts of Liestal , Sissach and Waldenburg . The river has its source at around on the canton border of Baselland ( Oltingen ) and Solothurn ( Kienberg ) and less than a kilometer away from the nearest point in the canton of Aargau . The source streams lie in the mountain pastures of the hamlet of Bärenacker and gather near Wägenstett, from where the mountain stream flows through a narrow, wooded valley, partly overturned under the connecting road, towards the northwest to Oltingen. In this village, the young Ergolz is laid in sections of several houses in an underground channel.
The stream crosses the landscape shaped by the Table Jura in an increasingly deeper valley and overcomes a low level of terrain in a waterfall in the area of the municipality of Anwil , as is the case with several small side streams. Below the village, in the narrow valley, the Upper and Lower Talweiher are created. Out of the valley, the Ergolz reaches the Mühlematt von Rothenfluh and shortly afterwards the Dübach flows into this village from the right. To the northwest of Rothenfluh, the valley widens to form a basin one kilometer wide. Past the hamlet of Säge, where the Lähnenbächli flows from the right, the Ergolz reaches the Sagimatt and the village of Ormalingen , which it flows around on the southern side of the valley under the church hill and at the foot of the Flue. In wide loops it passes the commercial area between Ormalingen and Gelterkinden and flows, overturned under the cantonal road, under the large railway viaduct of the Hauenstein line into this village.
In Gelterkinden, a regional center of the Upper Basel area, the Eibach , which comes from Zeglingen and has a stream almost as long as the upper course of the Ergolz, flows from the left, and the Rickenbächli from the left . On the south side around the village of Böckten and again the cantonal road and the railway embankment and shortly afterwards crossing the Sissacher bypass road, the Ergolz flows in a westerly direction and reaches the large settlement of Sissach , the second regional center. On the outskirts of the village it takes on the Homburgerbach from the left , which rises on the north ramp of the Lower Hauenstein Pass, and in the center of the village the Diegterbach , also coming from the south , which arises from four larger source streams below Eptingen . The source of the Leisibach, which is furthest to the south, lies a little below the Belchenfluh. Eleven bridges and footbridges cross the Ergolz near Gelterkinden.
The body of water, which has meanwhile become a small river, flows on the edge of the municipality of Sissach under the A 2 motorway viaduct and from then on is accompanied for several kilometers by the A 22 valley motorway . The Ergolz flows through the closely connected settlement areas of Itingen and Lausen to Liestal, the capital of the canton. The Talbächli flow into Itingen and three smaller tributaries flow into Lausen. In Liestal, the Frenke , the southernmost source stream of which rises on the Helfenberg in the southernmost part of the entire catchment area, the Ergolz, the Orisbach and the Röserenbach reach the main river. In the valley floor near Liestal, commercial canals branch off the river from time immemorial, which 14 bridges and footbridges cross here.
The lower course of the Ergolz lies on an almost straight line in an almost northerly direction between Frenkendorf and Pratteln on the left and Füllinsdorf on the right. North of Frenkendorf, the Hülftenbach coming from the Adlerhof and on the right-hand side of which the Hülftenschanz is located, flows into the river. The section shortly before the confluence with the Rhine lies in Augst and below the former settlement area of Augusta Raurica . Shortly before the Ergolz reaches the Rhine, the Violenbach flows into it from the right . From this point the Ergolz forms the canton border of the Basel area and the canton of Aargau between the villages of Augst and Kaiseraugst for a length of about four hundred meters .
The mouth section of the Ergolz on the left bank of the High Rhine is located in the reservoir area of the Augst-Wyhlen power plant to the west of it . To the left of the confluence, in front of the upper entrance to the ship lock of the power plant, is the Augst landing stage. At the confluence with the Rhine, the Kraftwerkstrasse crosses the Ergolz.
The mean height of the catchment area is, the minimum height is and the maximum height at
- Oltschürbächli ( left ), 0.4 miles
- Mühlibächli ( left ), 0.2 km
- Weiermattbächli ( left ), 0.2 km
- Bruggacherbächli ( right ), 0.8 km
- Bilisingenbächli ( right ), 0.4 miles
- Hinteres Almetbächli ( right ), 0.1 km
- Vorderes Almetbächli ( right ), 0.1 km
- Dalcherbächli (left), 0.1 km
- Löracherbächli ( right ), 0.1 km
- Lochmattbächli ( left ), 0.3 km
- Wolflochbächli ( left ), 0.5 km
- Hintermattbächli ( right ), 0.9 km, 1.41 km²
- Oltwegbächli ( right ), 0.7 km
- Chörberbächli ( left ), 0.5 km
- Dübach ( right ), 3.4 km, 5.24 km²
- Isletenbächli (left), 0.8 km
- Lähnenbächli ( right ), 2.1 km, 2.6 km²
- Weiherbächli ( left ), 2.1 km, 1.75 km²
- Hemmikerbach ( right ), 2.8 km (with Seebächli 3.5 km), 4.69 km²
- Chilchmattbächli ( left ), 0.2 miles
- Händschenmattbächli ( right ), 1.7 km, 1.56 km²
- Hintergrabenbächli ( right ), 0.7 km,
- Tschuppisbächli ( right ), 0.3 km
- Marenbächli ( right ), 0.5 km
- Eibach ( left ), 12.5 km, 28.8 km², 0.44 m³ / s
- Rickenbächli ( Cholmattbächli ) ( right ), 2.9 km (with Cholmattbächli 3.4 km), 4.97 km²
- Rorbächli ( left ), 0.8 km
- Ischlagbächli ( left ), 0.2 km
- Lambergbächli ( left ), 0.1 km
- Eibächli ( right ), 0.9 km
- Hinterdorfbächli ( right ), 0.9 km
- Rebacherbächli ( right ), 0.2 km
- Homburgerbach ( left ), 12.0 km, 30.4 km², 0.47 m³ / s
- Isletenbächli ( right ), 1.6 km
- Diegterbach ( left ), 13.0 km, 30.8 km², 0.46 m³ / s
- Böschmattbächli ( right ), 0.2 km
- Brunnmattbächli ( Grimstenbächli ) ( right ), 1.2 km (with Grimstenbächli 2.0 km), 2.43 km²
- Weiermattbächli ( right ), 0.2 km
- Lichsbächli ( left ), 0.5 km
- Talbächli ( Wolfgrabenbächli ) ( left ), 2.4 km (with Wolfgrabenbächli 2.8 km), 1.81 km²
- Atlistenbächli ( right ), 1.3 km
- Edletenbächli ( right ), 1.2 km
- Buechholdenbächli ( left ), 1.6 miles
- Furlenbächli ( left ), 2.2 km
- Chirchbergbächli ( right ), 0.2 km
- Windentalbächli ( right ), 1.2 km
- Frenke ( left ), 18.7 km, 88.4 km², 1.31 m³ / s
- Vogelsangbächli ( right ), 0.4 km
- Orisbach ( left ), 9.0 km, 20.8 km², 0.32 m³ / s
- Weidelibächli ( right ), 0.5 km
- Röserenbach ( left ), 5.2 km, 7.47 km², 0.11 m³ / s
- Elbisbächli ( right ), 1.6 km
- Röschgrabenbächli ( right ), 1.1 km
- Hölftenbächli ( Weiherbächli ) ( left ), 1.9 km, 2.6 km²
- Ruschenbächli ( right ), 2.3 km, 1.57 km²
- Violenbach ( right ), 8.0 km, 16.4 km², 0.26 m³ / s
The water level and the flow rate of the Ergolz have been measured in Liestal since 1934 . In these more than 70 years, an average of 3.73 m³ / s flowed towards the Rhine. In 2006 the river carried an average of 5.63 m³ / s. The extreme values that the measuring station has been able to determine since the measurements began are 0.1 m³ / s (1947) and 155 m³ / s (1999), respectively.
The river served the Roman city of Augusta Raurica to supply drinking water. For this purpose, a masonry underground aqueduct with the water intake was built above Liestal . The canal can still be viewed and walked in places today (in Heidenloch in Liestal and northeast of the sewage treatment plant in Füllinsdorf ).
Since the Middle Ages, waterworks have been located on the river or on derived commercial canals in several localities. The historic mills and sawmills existed until the 19th century or the early 20th century. The Gestadeck commercial district developed on the canal below the city near Liestal. The Sagi von Oltingen, which is still in operation today, was built in 1826 on the site of an older mill. The Rothenfluh saw, built around 1700, also had a loop, oils and plaster mill in the 19th century. The upper mill of Gelterkinden is mentioned as early as 1372, the mill of Sissach in 1323. In 1571 a paper mill was built near Lausen.
On its way the Ergolz is spanned by over 100 bridges.
There are three historic stone arch bridges from the 19th century in Rothenfluh (Ergolzbrücke Im Weier “Römerbrücke”) and Sissach (Rheinfelder Bridge “Zollbrücke” and Allmend Bridge). Three covered wooden bridges cross the river, two in Sissach and one in Augst.
Main road 309 crosses the river six times between Ormalingen and Böckten. The A22 high-speed road crosses the river eight times between Böckten and Liestal .
- Geoserver of the Swiss Federal Administration ( information )
- Evaluations of the water network. (XLSX) FOEN , December 2013, accessed on August 10, 2017 (listing of Swiss rivers> 30km).
- Modeled mean annual discharge. In: Topographical catchment areas of Swiss waters: area outlets. Retrieved May 30, 2019 .
- Liestal measuring station 1934–2016 (PDF) Federal Office for the Environment FOEN
- Topographical catchment areas of Swiss waters: Ergolz
- Geoview canton Basel Country
- Name for the upper course
- Berthold Moog: Once upon a time ... grinding and commercial mills in the canton of Basel-Landschaft. In: Mühlenbrief, 20, 2012.