Sieber (or)

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Sieber
Southwestern Harz with Sieber (source river here the gorge, which is about a kilometer shorter)

Southwestern Harz with Sieber (source river here the gorge, which is about a kilometer shorter)

Data
Water code DE : 488268
location Harz and Harz foreland, Göttingen district , Lower Saxony
River system Weser
Drain over Or  → Rhume  → Leine  → Aller  → Weser  → North Sea
source in the Harz at Bruchberg
51 ° 46 ′ 36 ″  N , 10 ° 29 ′ 54 ″  E
Source height approx.  900  m above sea level NN
muzzle in the Harz foreland in Hattorf in the Oder coordinates: 51 ° 38 ′ 43 ″  N , 10 ° 13 ′ 49 ″  E 51 ° 38 ′ 43 ″  N , 10 ° 13 ′ 49 ″  E
Mouth height 173  m above sea level NN
Height difference approx. 727 m
Bottom slope approx. 21 ‰
length 35 km
Catchment area 141 km²
Discharge at the Hattorf
A Eo gauge : 129 km²
Location: 1.2 km above the mouth
NNQ (08/27/2003)
MNQ 1951/2014
MQ 1951/2014
Mq 1951/2014
MHQ 1951/2014
HHQ (03/12/1981)
4 l / s
127 l / s
2.38 m³ / s
18.4 l / (s km²)
36.3 m³ / s
90 m³ / s
Left tributaries see below
Right tributaries see below
Small towns Herzberg
The sieves in the ravine ; Goethe once hiked in the Siebertal there
The confluence of the Kulmke (left) and the Sieber (right) shortly before the village of Sieber
The Sieber in paradise between the villages of Sieber and Herzberg
Sieber-Wehr shortly before Herzberg
Sieber-Wehr near the Herzberger paper mill
The confluence of the Lonau and the Sieber near Herzberg am Harz
Confluence of the Sieber (left) into the Oder (right) near Hattorf

The Sieber is an approximately 35 km long, northeastern and orographically right-sided tributary of the Oder in the Harz and southwestern Harz foreland in the district of Göttingen , Lower Saxony .

course

The Sieber rises in the Upper Harz in the Harz National Park . Their source is located a little south of the Bruchberg summit (approx.  927  m above sea  level ) and from the original location of the ski cross of the Altenau Ski Club at about 900  m above sea level. NN .

Initially, the Sieber, which runs through the multi-part nature reserve Siebertal , flows south. After about 1,000 m of flow, it is crossed by the Clausthaler Flutgraben (sometimes also called Rothenberger Graben ), a sloping ditch of the Upper Harz water reserve . This ditch, which initially runs at around 820  m above sea level, leads almost all of the Sieber's water to the east and then north-east around the Bruchberg when the tide is low and leads it to the dam ditch .

The Sieber itself crosses under the federal highway 242 at a height of about 760  m , and from then on cuts a deep, winding Kerbtal into the undulating Harz plateau for about 10 km. Then the valley widens slightly, and the river, which is now outside the Harz National Park but within the Harz Nature Park , first runs west and then south-west along state road  521. After the Kulmke flows into it , it touches the village of Sieber directly southeast. The Goldenke joins this town .

A little further to the southwest, where the border of the national park almost reaches the river, the Sieber flows through the heart of Herzberg at the confluence of the Lonau , where it leaves the Harz Mountains and the nature park. There part of their water is diverted through the mill ditch, through which several mills were previously driven. Below Herzberg and the former ammunition factory , the Mühlengraben flows back into the Sieber.

From Herzberg the Sieber runs - after crossing under the federal road 243 and the Herzberg – Seesen railway line - in the southwestern Harz foreland roughly along the district road  27 with the B 243 on the other side to the northwest, where between the Große Steinau and the Kleine Steinau at about 1,000 m Length the border of the nature park meets the river. Then it finally flows outside the park.

After passing Hörden and Elbingerode , where the Sieber flows along the district road 7, it flows in Hattorf after crossing the southern Harz route at about 173  m above sea level. NN in the Rhume tributary Oder ; directly below the mouth of the Sieber, the Oder is dammed up by a small weir to form a small lake ( 172.6  m above sea level ).

Catchment area and tributaries

The catchment area of the Sieber covers about 141 km². Their tributaries include with orographic allocation (l = left-hand side, r = right-hand side) , and - if known - length of water, mouth location, catchment area size (viewed downstream) :

Infiltration

In the Harz foreland, the Sieber runs between Herzberg and Hattorf through the karst landscape of the southern Harz Zechstein belt , causing seepage (also known as shrinkage ). There, on average, almost a third of their water seeps into the subsoil. During longer periods of drought it can even happen that the river falls completely dry at times due to the seepage. The water seeping away in this area comes back to the surface in the Rhume spring , which is almost 9 km southwest . One of these shrinkages was between Herzberg am Harz and Hörden am Harz directly in front of the steep northeast slope of the Nüllberg ( Nüll ). When the water level in the Sieber was high enough, some of the water sank here. Today this place is about 20 m from the river bank.

Karl Thürnau colored the Sieber tributary Eichelbach (Herzberg / Harz) in February 1910 with 6 kg of uranine in his hydrological investigations of the Rhume spring . Three days later the faintly colored water appeared in the main spring of the Rhume spring. This was also confirmed by dyeing tests carried out by the Lower Saxony State Office for Soil Research in 1980 . Corresponding connections between the Rhume spring and the Sieber near Hörden and the Oder near Scharzfeld have also been identified.

dam

Between the 1960s and the mid-1980s, the Harz waterworks pursued plans to use the water from the Sieber with one or more dams . Initial plans envisaged a complete flooding of the village of Sieber when the citizens were relocated to a new location. The relocated health resort was promised “the best start opportunities”. Other plans called for a high dam immediately above the village. The last plans, the so-called multi - step solution , consisted of two smaller dams in the upper Siebertal and in the Kulmke to transfer water into the Söse and the construction of the lower Siebertalsperre between Sieber and Herzberg. Ultimately, strong resistance from the population from the southern Harz area ensured that these plans were stopped. Today the Sieber is one of the largest unregulated rivers in the Harz.

Others

The river is the namesake of the village of Sieber in the Siebertal, large parts of which are designated as a nature reserve Siebertal .

In the Lonauerhammerhütte , the Sieber's water power was used for a stamping mill.

Due to the karst area, the course of the river in the area around Herzberg has shifted several times over the past 400,000 years. The subsoil made of dolomite or gypsum has changed again and again due to leaching processes and sinkholes . One of the former rivers ran along today's federal road 27 through the floodplain, that is, the Sieber flowed south around the Schlossberg of Schloss Herzberg , several kilometers away from today's course. An even older former course of the river ran over today's Nüllfeld Pass (between Schloßberg and Nüllberg ) to Elbingerode.

The small road in the upper Siebertal has been closed to motor vehicle traffic from the Königshof forest house since the late 1980s and is partly in the Harz National Park . It leads to federal highway 242 northwest of Sonnenberg .

Individual evidence

  1. ^ Deutsches Gewässerkundliches Jahrbuch Weser-Ems 2014. Lower Saxony State Agency for Water Management, Coastal Protection and Nature Conservation, p. 196, accessed on October 4, 2017 (PDF, German, 8805 kB).
  2. a b Map services of the Federal Agency for Nature Conservation ( information )
  3. The Mühlengraben, Herzberg's lifeline. Karstwanderweg.de, accessed on August 8, 2011 .
  4. Mills in Herzberg. Karstwanderweg.de, accessed on August 8, 2011 .
  5. Information in karstwanderweg.de (see web links)
  6. a b Sieberverinkung Hörden , Karst hiking trail Südharz. Retrieved June 8, 2012.
  7. Nüllberg-Schwinde , Karst hiking trail Südharz. Retrieved June 8, 2012.
  8. Episodic Sieberschwinde on the Nüllberg near Hörden , Karst hiking trail Südharz. Retrieved June 8, 2012.
  9. ^ Hans-Heinrich Hillegeist, The history of the Lonauerhammerhütte near Herzberg / Harz , Vandenhoeck & Ruprecht, Göttingen 1977, ISBN 3-525-36165-3
  10. karstwanderweg.de , accessed on August 26, 2012
  11. karstwanderweg.de , accessed on August 26, 2012
  12. karstwanderweg.de , accessed on August 26, 2012

Web links

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