University of Natural Resources and Life Sciences, Vienna (BOKU) - Research portal
Bed load management Strobler Weißenbach - Monitoring, modelling, clearance concept
- Project Leader
- Habersack Helmut, Project Leader
- Duration:
- 01.08.2015-31.12.2023
- Programme:
- Forsttechnischer Dienst für WLV, Sektion Salzburg - Beauftragung
- Type of Research
- Applied Research
- Project partners
-
Forsttechnischer Dienst für Wildbach- und Lawinenverbauung, Sektion Salzburg, Austria.
Function of the Project Partner: Partner
- Staff
- Hauer Christoph, Project Staff
- Lammer Andrea, Project Staff
- Holzapfel Patrick, Project Staff
- Rindler Rolf, Project Staff
- BOKU Research Units
- Institute of Institute of Hydraulic Engineering and River Research
- Abstract
- The Strobler-Weißenbach which is located in the Salzburger Kalkvoralpen is a part of the Osterhorngruppe. The main drainage ditch has a length of 11,3 km, a catchment area of 45.53 km2 and discharges at Strobl into the Ischler Arche River. A huge slit dam is located in the upper reach which is completely silted up with limestone gravel. To guarantee the operational reliability of the construction, clearance of the retaining capacity has to be done. However, this measurement requires high financial and operational effort. Improving the efficiency of emptying itself is only possible by mechanical means ("shoveling" of the slot openings during low and medium flow). Resulting downstream material input causes an increase in turbidity and bedload transport followed by alluvial deposition and rearrangement effects. In addition to an increase in turbidity, alterations in stream morphology in the lower reach were observed in the course of previous sediment management measures.The objective of the monitoring program is to document the actual state of stream morphology, habitats and sediment transport and to analyze its future development via an integrated measurement program.The program includes various measuring stations for water level, flow velocity, and suspended sediment load in addition to analyze the bed material and sediment migration using radio telemetry. The aim of the project is to develop a general clearance concept which is minimizing adverse effects to the lower reach concerning fisheries and flood protection. Moreover, damage potentials for fisheries as a consequence of alluvial deposition and clogging of potential spawning habitats should be determined and evaluated.
- Keywords
- Water protection; Hydrogeology; Hydrometry;
- Bed load; Habitat; Suspended load; Tracer;
- Publications
-
Habersack, H; Rindler, R; Holzapfel, P; Shire-Peterlechner, D; Hauer, Ch; Kammerlander, J; Moser, M; (2022): Monitoring am Strobler Weißenbach - Bericht 2016-2021.
Finanziert von: Finanziert von: Wildbach- und Lawinenverbauung, Bundesministerium für Land- und Forstwirtschaft, Umwelt und Wasserwirtschaft , 177 -
Habersack, H; Rindler, R; Holzapfel, P; Jury, G; Shire-Peterlechner, D; Hauer, C; Kammerlander, J; Moser, M (2021): Jahresbericht Monitoring am Strobler Weißenbach 2020.
Bundesministerium für Land- und Forstwirtschaft, Umwelt und Wasserwirtschaft Wildbach- und Lawinenverbauung, 245
- Vorträge