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![BACKGROUND
The Crisul Repede River bed width is 50 m at the discharge sill, it has
25.6 m3/s flow rate and its water speed is 0.4 m/s [Source: ABA Crisuri].
The migratory fish species from
the area are:
• Nase (Chondrostoma nasus) -
protected by Bern Convention
(Appendix III).,
• Barbell (Barbus barbus) - Rare species
protected Habitats Directive (Annex V),
annex 4A of Low nr.462 and Red List of
RBDD)
• Freshwater bream (Abramis brama) -
protected by Bern Convention
(Appendix III)
protected by Bern Convention (Appendix III).
Dimension for discharge sill
near Ferdinand bridge
h=1,5m-height l= 50m-length
h1 (water fall )=1m](https://image.slidesharecdn.com/presentationii-razvanvoicu-141020025615-conversion-gate01/85/Madison-fish-passage-conference-presentation-2-Razvan-Voicu-Eric-Kay-4-320.jpg)
Uploaded byRăzvan Voicu
Madison fish passage conference presentation 2! Razvan Voicu, Eric Kay!
The document presents case studies that propose practical solutions for restoring fish passage on the Crisul Repede River in Romania. Currently, discharge sills and small dams stop fish migration. The proposed solutions include installing a rubber canal fish passage system upstream of one discharge sill and a concrete ramp fishway system upstream of another. Both proposed solutions aim to provide a cost-effective way of allowing fish to pass through the barriers while requiring minimal human intervention.
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Similar to Madison fish passage conference presentation 2! Razvan Voicu, Eric Kay!
Madison fish passage conference presentation 2! Razvan Voicu, Eric Kay!
- 1. International Conference onEngineering and Ecohydrology for Fish Passage June 9-11,2014 University of Wisconsin -Madison Dr.eng.environment Răzvan G. Voicu National Institute of Hydrology and Water Management Laboratory of Eco-Hydrology, România Senior Project Manager. Eric L. Kay KAY ASSOCIATES, Comox, BC. Canada Forest and Industrial Road & Water Management Consultants
- 2. CASE STUDY LOCATION Crisul Repede River România discharge sill
- 3. OVERVIEW The paperpresents a case study that proposes practical solutions for the restoration of longitudinal connectivity of Crisul Repede River In the town of Oradea there are a lot transversal constructions such as discharge sills and small dams, that stops migration process of various fish species.
- 4. BACKGROUND The CrisulRepede River bed width is 50 m at the discharge sill, it has 25.6 m3/s flow rate and its water speed is 0.4 m/s [Source: ABA Crisuri]. The migratory fish species from the area are: • Nase (Chondrostoma nasus) - protected by Bern Convention (Appendix III)., • Barbell (Barbus barbus) - Rare species protected Habitats Directive (Annex V), annex 4A of Low nr.462 and Red List of RBDD) • Freshwater bream (Abramis brama) - protected by Bern Convention (Appendix III) protected by Bern Convention (Appendix III). Dimension for discharge sill near Ferdinand bridge h=1,5m-height l= 50m-length h1 (water fall )=1m
- 5. BACKGROUND discharge sillnear Ferdinand bridge
- 6. DOWNSTREAM metal semi-cylinder discharge sill metal hinge resistant rubber canal watercourse rubber fixing system for the canal Figure 1 Positioning the metal semi-cylinder – indicative scheme
- 7. left bank rightbank resistant rubber canal discharge sill module M2 module M1 watercourse bascule for redirecting fish towards the rubber canal metal grill left bank metal grid fence fish redirecting system (electromagnetic field) rubber canal discharge sill Figure 2 Rubber canal positioning – indicative scheme
- 8. metal semi-cylinder lsemi-cylinder resistant rubber canal metal hinge discharge sill Crisul Repede River Figure 3 Water level in the rubber canal – indicative scheme
- 9. electric motor orwinch metal bar metal oval metal cable metal oval mobile bascule or mobile semi-cylinder mobile semi-cylinder framework metal sheet pile - grid left bank water level in the rubber canal Figure 4 Positioning the electric motor – indicative scheme
- 10. electric winch (hc-winch.com) metal cable Crisul Repede River rubber canal metal bar discharge sill metal fence metal semi-cylinder metal plate metal hinge
- 11. Conclusions © AndyLoghin The solution, intended for one river bank only, has the advantage of being used as fish passage system upstream of discharge sill, too. Another advantage of this system is that they can be dismantled and stored (during winter) and used in other areas where rivers are crossed by hydrotechnical works with transversal bars. The costs for these systems are considered reasonable in contrast with conventional systems costs. They can work automatically, as the human intervention is required only when it comes about supervision.
- 12. Thank you! Vămulțumesc ! Răzvan G.VOICU, dr.eng.environment rzvnvoicu@yahoo.com getiiliberi@gmail.com National Institute of Hydrology and Water Management Laboratory of Eco-Hydrology, România Eric L.KAY, Senior project manager erickay@kayassociates.com KAY ASSOCIATES, Comox, BC. Canada Forest and Industrial Road & Water Management Consultants
- 13. Vassalboro, Maine (KennebecCounty) http://flyfishingonly.net/forum/topic.asp?TOPIC_ID=5967
- 14. UPSTREAM SOLUTION fishtek.co.uk-Fish Pass Design Larinier bottom baffle pass River Neath, Aberdulais (Source: Armstrong et al., 2004) left bank discharge sill concrete ramp metal dowel concrete bed metal bracket indicative scheme Crisul Repede River Concrete ramp positioning Răzvan G.VOICU, dr.eng.environment
- 15. l = 4m discharge sill concrete bed concrete ramp H= 2,5 m(thickness) indicative scheme h = 3, 8m L= 5, 52 m Crisul Repede River h1= 1,4 m Concrete ramp dimensions
- 16. right bank themetal grid 2 left bank metal stopper discharge sill concrete ramp crenelated metal rail metal bars metal and concrete fences indicative scheme Metal grids positioning
- 17. crenelated metal rail Crisul Repede River discharge sill electric motor concrete ramp metal frame metal frame electric motor crenelated metal rail concrete bed crenelated pinion indicative scheme rubber wheel Crenelated rail positioning inside the concrete ramp
- 18. telescopic hydraulic cylinder crenelated metal rail concrete bed crenelated pinion indicative scheme metal hinge metal frame electric motor metal mobile grid 1 (maximum height) bearing bearing Telescopic hydraulic cylinder positioning on the metal frame and on the metal mobile grid1 vitess-industrial.ro
- 19. mobile metal grid1 metal bar for opening the grid 2 the metal grid 2 2 cm metal and concrete fences concrete platform indicative scheme rubber roller rubber wheel electric motor Metal frame fastening system
- 20. rolling metal barrubber wheel metal bar securing the metal frame rubber wheel indicative scheme http://en.wikipedia.org/wiki/Train_(roller_coaster) Rollers positioning
- 21. mobile metal grid2 – metal spring concrete platform crenelated metal rail Crisul Repede River 30dd metal bar mobile metal grid 1 discharge sill metal frame concrete ramp electric motor metal spring indicative scheme 30 cm Minimum and maximum levels of metal mobile grids 1 and 2
- 22. mobile metal grid2 - metal spring rsc.org mobile metal grid 1 telescopic hydraulic cylinder Crisul Repede River 30dd mobile metal grid 1 discharge sill electric motor concrete ramp metal frame indicative scheme ≈ 30 cm bearing Rack railway Metal grid refolding and system returning on horizontal surface http://www.connectmums.com/wp-content/ uploads/2012/03/Mt-Pilatus- Rack-Railway-3-540300.jpg
- 23. mobile metal grid1 metal fence concrete fence mobile metal grid 2 metal spring metal bar for opening the grid 2 discharge sill concrete platform indicative scheme Concrete platform positioning
- 24. Conclusions The motorcontains unsophisticated software to operate all controls. Power consumption is very low, considering that fish migration does not take place throughout the year and during the winter, when temperatures cause partial freezing of the watercourse, the mobile framework can be detached and stored in a properly place. The costs for these systems are considered reasonable in contrast with conventional systems costs. They can work automatically, as the human intervention is required only when it comes about supervision.
- 25. Thank you! RăzvanG.VOICU, dr.eng.environment rzvnvoicu@yahoo.com getiiliberi@gmail.com