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Results of scenario 2: (Adjustment of the ‘Norderelbe’): a higher sedimentation rate in the ‘Norder-’ and ‘Süderelbe’ occurred. The material originated mostly from a part of the ‘Norderelbe’ in between ‘Köhlbrand’ and the turning radius of the ‘Hansahafen’. The strong erosion at this place was caused by the strong beginning state of the flood current which was a result of the adjustment of the ‘Norderelbe’.
Results of scenario 3: (Adjustment of the ‘Süderelbe’) higher erosion rates in large parts of the ‘Norderelbe’ occurred. In most parts higher sedimentation was expected as well as between ‘Köhlbrand’ and the turning radius of the ‘Hansahafen’ and in the ‘Süderelbe’ at the turning circles ‘Sandauhafen’ and ‘Altenwerder’.
Results of scenario 4: (Controlled gates in the ‘Norder’- and ‘Süderelbe’): A clear decrease of the flow through took place during the single tidal phases, as well as a higher sedimentation at the turning radius southward of the container-terminal ‘Altenwerder’. The sedimentation rates in the ‘Norderelbe’ clearly decreased.
As a final result no scenario could influence the sedimentation in a positive manner in the ‘Norderelbe’ and ‘Süderelbe’. By controlling both gates in the ‘Norder-‘ and ‘Süderelbe’ a decrease in the sedimentation process could be reached in the ‘Norderelbe’. Unfortunately, sedimentation in the ‘Süderelbe’ increased.
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Current direction control at Bunthaus
Table of content
- 1. Measure description
- 1a. Introduction
- 1b. Objectives
- 1c. Background and side conditions
- 1d. Measure
- 1e. Expected effect
- 2. Execution of the main effectiveness criteria
- 2a. Effectiveness according to development targets of measure
- 2b. Impact on ecosystem services
- 2c. Degree of synergistic effects and conflicts according the uses
- 3. Additional evaluation criteria in view of EU environmental law
- 3a. Degree of synergistic effects and conflicts according WFD aims
- 3b. Degree of synergistic effects and conflicts according NATURA 2000 aims
- 4. Crux of the matter
- 5. Contact
- 6. References
Additional information
for this measure:
No further information available.
for this measure:
No further information available.
Expected effect
The hydrodynamic and morphological quality of the model was approved. Both, silty sediments from upstream and sandy sediments from downstream are transported to the harbor at the investigated headwater levels.Results of scenario 2: (Adjustment of the ‘Norderelbe’): a higher sedimentation rate in the ‘Norder-’ and ‘Süderelbe’ occurred. The material originated mostly from a part of the ‘Norderelbe’ in between ‘Köhlbrand’ and the turning radius of the ‘Hansahafen’. The strong erosion at this place was caused by the strong beginning state of the flood current which was a result of the adjustment of the ‘Norderelbe’.
Results of scenario 3: (Adjustment of the ‘Süderelbe’) higher erosion rates in large parts of the ‘Norderelbe’ occurred. In most parts higher sedimentation was expected as well as between ‘Köhlbrand’ and the turning radius of the ‘Hansahafen’ and in the ‘Süderelbe’ at the turning circles ‘Sandauhafen’ and ‘Altenwerder’.
Results of scenario 4: (Controlled gates in the ‘Norder’- and ‘Süderelbe’): A clear decrease of the flow through took place during the single tidal phases, as well as a higher sedimentation at the turning radius southward of the container-terminal ‘Altenwerder’. The sedimentation rates in the ‘Norderelbe’ clearly decreased.
As a final result no scenario could influence the sedimentation in a positive manner in the ‘Norderelbe’ and ‘Süderelbe’. By controlling both gates in the ‘Norder-‘ and ‘Süderelbe’ a decrease in the sedimentation process could be reached in the ‘Norderelbe’. Unfortunately, sedimentation in the ‘Süderelbe’ increased.