Saalachsee

Saalachsee
	Orthophoto of the axis of the hall
Tributaries:	Saalach , Röthelbach
Drain:	Saalach
Major cities nearby:	Bad Reichenhall
	Bavaria , Germany
Coordinates	47 ° 42 '39 " N , 12 ° 51' 44" E Coordinates: 47 ° 42 '39 " N , 12 ° 51' 44" E
	Data on the structure
Construction time:	1910-1913
Height of the barrier structure :	13 m
Height of the structure crown:	486 m above sea level NHN
Base width:	130 m
Operator:	DB energy
	Data on the reservoir
Water surface	50 ha
Reservoir length	1.3 km
Reservoir width	407 m

The Saalachsee is a reservoir in Kibling (municipality of Schneizlreuth ) in Bavaria and part of the Saalach power station Bad Reichenhall for generating traction current . It is dammed by the Saalach dam, also known as the Kiblinger lock or Kibling weir.

history

The dam was built from 1910 to 1913. It is part of the hydropower plant Saalachkraftwerk Bad Reichenhall, which was built as part of the electrification of the Freilassing – Berchtesgaden railway line . Today the Deutsche Bahn subsidiary DB Energie GmbH operates the listed power plant. From 2004 to 2005, DB Energie built an additional residual hydroelectric power station on the left-hand side immediately adjacent to the existing barrier structure . Construction began on April 14, 2004; Trial operation was on December 22, 2004 and it was put into operation on February 17, 2005. A Kaplan turbine with a vertical shaft arrangement and a diameter of 1.1 meters at a head of 13 meters runs in the new residual hydropower plant . The generator has a nominal output of 700 kilowatts; this means that five million kilowatt hours of electricity can be generated annually for the railways and around 1,000 residents.

Construction work with missing flood lock and wall

Since the end of 2014, the entire barrier structure has been fundamentally renovated after more than 100 years of operation and partially rebuilt, as the weir field for the bottom outlet had been leaking for many years and the safe discharge of the current design flood was no longer given. The wall will also be raised in the course of the construction work. In 2015 the complete reconstruction work should be completed and the lake should be dammed again. The lake has been completely filled again since summer 2016 and work on the dam wall has been completed.

Deposits

One problem is the sludge deposits and bed load loads, which are transported from the Saalach from the upper reaches into the Saalachsee, especially during floods , and settle there, which leads to constant siltation. As a result, these debris masses are missing in the lower reaches, which leads to the fact that the river bed digs deeper and deeper downstream and expensive hydraulic engineering measures such as bed slide are required.

A water-ecological improvement occurred for the diversion section between Kiblinger weir and the mouth of the underwater canal, which had fallen dry due to the diversion of the Saalach; Since 2005, up to 6 m³ / s of residual water has been running through the original river bed , which is released via the residual hydroelectric power station on the dam. Due to the lack of a fish ladder on the dam wall, fish and small organisms can not yet migrate.

Technical data of the residual hydropower plant

Turbine: Double-regulated Kaplan bulb turbine , vertical design, Z bulb turbine water-lubricated lower turbine bearing
Impeller diameter: 1.1 meters
Speed: 428 revolutions / minute
Generator: directly coupled three-phase generator
Power: 700 kilowatts
Frequency: 50 Hertz
Max. Working supply: over 5 million kWh (5 GWh)
Nominal flow: 6 m³ / s
Start of construction: April 14, 2004
Trial operation: December 22, 2004
Commissioning: early 2005
Excavation and rock demolition: 4,700 m³
Reinforced concrete: 1,400 m³
Cost: over 2 million euros

Picture gallery

Saalachsee seen from Kibling
Saalachsee with a view of the dam (right) and water drainage to the Saalach power plant (left)
Dam wall, on the far right the residual hydropower plant