Removal of debris

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This wiki is under development, there might be omissions and errors. The data in many of the tables is only for demonstration purposes, not based on reality (yet).

NOTE: This article needs to be written

Icon sediment.png

Introduction

Large debris (trees) can be transported along the river during flood events and accumulate in areas of the rivers. Locally the hydraulic conditions (water velocity, depth) can be modified and alter the type of habitats. As habitat preferences are related to both species and life-stage of fish, debris can be removed to recreate lacking habitats for targeted organisms.

Methods, tools, and devices

During planning

During implementation

During operation

Relevant MTDs and test cases

Relevant MTDs (demonstration purposes only)
Structure from motion (SfM)
FLOW-3D
HEC-RAS
Relevant test cases (demonstration purposes only)
Schiffmühle test case
Gotein test case
Las Rives test case
Trois Ville test case
Guma and Vadocondes test cases

Classification Table

Classification Selection
Fish species for the measure All
Does the measure require loss of power production Operational (requires flow release outside turbine)
-
-
Recurrence of maintenance Irregular at events
Which life-stage of fish is measure aimed at -
-
-
-
Adult fish
Movements of migration of fish
Which physical parameter is addressed N/A
-
-
-
-
-
-
-
Hydropower type the measure is suitable for Plant in dam
Plant with bypass section
Dam height (m) the measure is suitable for Up to 20
Section in the regulated system measure is designed for In dam/power plant
-
-
-
River type implemented -
Fairly steep with rocks, boulders (from 0.4 to 0.05 %)
Slow flowing, lowland, sandy (less than 0.05 %)
Level of certainty in effect Moderately certain
Technology readiness level TRL 9: actual system proven in operational environment