Tame Gera
| Tame Gera | ||
 The Tame Gera in Geraberg (upper course in Arlesberg) |
||
| Data | ||
| Water code | DE : 56421 | |
| location | Thuringia , Germany | |
| River system | Elbe | |
| Drain over | Gera → Unstrut → Saale → Elbe → North Sea | |
| source |
Kerbholzbrunnen 50 ° 39 ′ 28 ″ N , 10 ° 47 ′ 31 ″ E |
|
| Source height | approx. 860 m above sea level NN | |
| confluence | in Plaue from the right with the Wilder Gera to Gera coordinates: 50 ° 46 ′ 30 ″ N , 10 ° 53 ′ 45 ″ E 50 ° 46 ′ 30 ″ N , 10 ° 53 ′ 45 ″ E |
|
| Mouth height | 327 m above sea level NN | |
| Height difference | approx. 533 m | |
| Bottom slope | approx. 28 ‰ | |
| length | 19 km | |
| Discharge at the Geraberg A Eo gauge : 18.5 km² Location: 9.3 km above the mouth |
NNQ (2002) MNQ 1961–2005 MQ 1961–2005 Mq 1961–2005 MHQ 1961–2005 HHQ (08/10/1981) |
0 l / s 52 l / s 389 l / s 21 l / (s km²) 4.46 m³ / s 27.8 m³ / s |
| Left tributaries | Confusion | |
| Right tributaries | Jüchnitz , Körnbach , Reichenbach | |
| Communities | Geratal (OT Geraberg ), Angelroda , Plaue | |
The Tame Gera is a 19 kilometer long river in the Ilm district in Thuringia . It is the right of the two headwaters of the Gera .
course
Headwaters
The Zahme Gera rises in the central Thuringian Forest between Ilmenau and Suhl near the Schmücke am Rennsteig . The headwaters are on the north side of the Sachsenstein mountain, at the forest location "Kerbhölzerbrunnen", on the "Alte Landstrasse", also known as "Suhler Strasse". The spring water flows through the “Aschbachsgraben” and joins the “Hungertalsteich” with the inflowing spring streams of the “Löffeltal” and the “Hungertal”. The Zahme Gera has this name from the "Hungertal pond". The earth dam, which is now broken, was once built up to meet the needs of a stamping mill or a "water art" in connection with the regional old mining. The Tame Gera then flows around the 772 meter high Gabelbachskopf to the west . The scenic, impressive valley cut is over 100 meters deep. The village of Gehlberg is located on the plateau to the west of the valley .
Middle course
On the Zahmer Gera below Gehlberg there is the mouth hole of the approximately ten kilometer long tunnel . This structure is part of the Ohra dam project and diverts part of the river water into the dam. This is followed by a wooded section of valley about six kilometers long to the Braunsteinmühle , today a technical monument in the Arlesberg district of Geratal . This mill was founded in 1855 and crushed extracted manganese ore (brown stone ). It is located directly at the confluence of the five-kilometer-long Jüchnitz . Arlesberg has belonged to Geraberg since 1923. This is where the gorge-like forest valley ends and at the same time marks the exit from the Thuringian Forest . The following town center of Geraberg carried the name Gera until 1922 . Mill ditches branching off in Geraberg were used to operate hammer mills and later mainly to drive some sawmills . In Geraberg, the approximately three-kilometer-long Körnbach ( called Kermich in the dialect ) flows into the Zahme Gera from the right .
Tame Gera valley bridge
On the northern outskirts of Geraberg follows the imposing viaduct Tame Gera of 71 A . It is 520 meters long and 63 meters high. Below the chamber holes , a retention basin was built for flood protection at a narrow point between the “Bringeberg” and the “Weißer Stein” mountain, which can hold 351,000 m³ of water from the Zahmer Gera if necessary. Next to it is the “Fronteich” pond, its overflow flows into the tame Gera from the right. After about 900 m the Wirrbach, about six kilometers long, joins the Zahme Gera from the left .
Lower course
Here it also changes its direction of flow from north to northeast. This is followed by the village of Angelroda , where the valley is spanned by a 23-meter-high, 100-meter-long railway viaduct on the Plaue – Themar railway line, built in 1879 . The Plauesche Grund begins behind Angelroda , a section of the Gera valley that extends to the gates of Arnstadt . The Tame Gera now meanders for about four kilometers through its wide meadow valley, taking in the ten-kilometer-long Reichenbach that joins from the right , before it joins the Wild Gera zur Gera in Plaue with the Wild Gera coming from the left .
In dry times, the Zahme Gera seeps away completely into the karst underground east of Rippersroda, and then comes back to the daylight in the Spring of Plaue a little beyond the Wilde-Gera-Lauf.
history
In earlier times there were different names for the Tame Gera. From 1503 to 1642 these were: Windische Gera, the old Gera, the Wendish Gera, the Alte Gera. Around 1590 the name Windische Gera changed from the Zahmen Gera to the Wild Gera. The view of the origin of the Zahmer Gera changed in the 17th century. From then on one saw this in the spring Kerbholzbrunnen on the Alte Landstrasse, approx. 450 m north of the high point of the Sachsenstein. Up until the 20th century, there were a total of 14 mill locations on the Zahmen Gera from the source area to below Geraberg. The Tame Gera is also considered an unpredictable mountain river. The great flood of August 9 and 10, 1981, in which a woman drowned in Geraberg, testifies to this. As a flood protection measure, a flood retention basin was completed in 2010 above Angelroda.
traffic
The valley of the Zahmen Gera is only of minor importance for traffic. There is a forest path along the river between Gehlberg and Arlesberg and a district road between Arlesberg and Angelroda. The Plaue – Themar railway runs along the valley between Angelroda and Plaue. The Gera cycle path accompanies the Tame Gera from the Jüchnitz estuary.
Others
The Geratal administrative association, founded in 1992 and based in Geraberg, named itself after the Zahmer Gera .
swell
- Forest maps of the Black Forest Forestry Office from 1810, 1818 and 1853
Web links
Individual evidence
- ↑ Level: Geraberg Auf: hnz.tlug-jena.de
- ^ Luise Gerbing : The field names of the Duchy of Gotha and the forest names of the Thuringian Forest between the Weinstrasse in the west and the Schorte (sluice) in the east; on behalf of the Association for Thuringian History and Archeology. and ed. by Luise Gerbing . Pp. 510-512. Jena G. Fischer, 1910 ( archive.org [accessed May 23, 2020]).
- ↑ FISCHER, KLAUS; Geraberg a centuries-old mill location; Published by the Geraberger Heimatfreunde e. V. 2007