FISH PASSAGE TOUR
Townsville
22 October 2009
Information Booklet
Contents:
• Itinerary
• Solander Road & Discovery Drive Fishways, JCU
• Types of fish barriers
• Stuart Creek Culvert Removal
• Introduction to Fish Passage (First half of presentation by Tim Marsden-
http://www.nqdrytropics.org.au/projects/downloads/T_Marsden_fishways.pdf)
• University Creek fishways – Mitigation of migration barriers (Ross Kapitzke)
FISH PASSAGE TOUR – TOWNSVILLE 22 October 2009
Time Location Presenters Topics/Themes 8:30 – 8:55 CSIRO Carpark Rochae & Simon
Alfred Smallwood
- Introduction
- Welcome to Country
8:55 - 9:10 Coach transport
9:10 – 10:35 JCU Fish way
(Solander Road)
Ross Kapitzke - Purpose of fishways
- How the designs work
- Effectiveness of designs
9:35 - 9:55 Coach transport
9:55 – 10:10 Morning Tea at Riverview Tavern
10:10 – 11:20 Black’s Weir Damien Burrows
Terry Vallance
- Why do fish need to move?
- Different types of fish barriers
- Electrofishing survey
- Results- what was found, what wasn’t found
- Fish movement in Black’s Weir
11:20 – 11:50 Coach transport
11:50 – 12:15 Stuart Creek Greg Wilcox
Damien Burrows
- Background of the site
- Culvert removal
- Connectivity of Stuart Creek
12:15 – 12:40 Coach transport
12:40 – 14:40 Seafood lunch
Cleveland Bay cruise on board
the Goondooloo
14:40 – 14:55 Coach transport
14:55 – 15:10 Townsville commercial
fishing wharf
Greg Radley
- Commercial fisheries in Townsville
- Importance of local industry
15:10 – 15:40 Coach transport
15:40 CSIRO Carpark END of TOUR
PRESENTERS:
Ross Kapitzke: Environmental Engineer, School of Engineering and Physical Sciences, James Cook University
Damien Burrows: Aquatic Ecologist, Australian Centre for Tropical and Freshwater Research, James Cook University
Terry Vallance: Aquatic Ecologist, Tropical River Consulting. For more information go to http://tropicalriver.com.au
Greg Wilcox: Regional Manager, Conservation Volunteers Australia
Greg Radley: Commercial Fisherman, Townsville
Ross Kapitzke • JCU School of Engineering • fish passage design • fishways\jcu engineering_fish passage_university creek solander road -/4/09
University Creek Solander Road pipe culvert fishway PS01
(Photo: Ross Kapitzke 09/04/06) (Photo: Ross Kapitzke 11/04/06) (Photo: Ross Kapitzke 09/04/06)
Solander Road prototype pipe culvert fishway is located on University Creek on James Cook University campus in Townsville
University Creek has 13 native freshwater fish species – the crossing has been a barrier to migration to upstream habitat areas
the fishway was developed in 2005 – at least 9 native fish species have moved upstream through the crossing since 2006
collaborative funding support for the project was provided through the University and industry and community partners
CLIENT AND PARTNERS
Department of Main Roads
PROJECTOBJECTIVES
provide for upstream fish passage at crossing
develop remediation measures for culvert and creek
develop and test prototype fishway for pipe culverts
provide demonstration site for community
SCOPE OF WORK
concept design of fishway facilities
design and development of prototype fishways
detailed design and construction of fishway facility
hydraulic and biological monitoring and evaluation
CROSSINGDESCRIPTION
4-barrel 1200 mm diameter pipe culvert 7.2 m long
pipe culvert slope 1 in 50 (2%)
downstream apron 6.3 m long – slope 1 in 20 (5%)
road causeway – crest 1.9 m above culvert invert
FISH PASSAGE BARRIERS
water surface drop downstream of culvert
shallow water depths on downstream apron
high velocity and turbulence in culvert barrel
regular culvert cross section and lack of rest place
MITIGATIONMEASURES
Zone A – rock ramp / cascade fishway
Zone B – apron offset baffle fishway
Zone C – offset baffle fishway for pipe culverts
Zone C – corner “Quad” baffle fishway for pipes
OTHER FEATURES
hydraulic and biological monitoring facilities
(gauge boards, flow control boards)
provisions for adaptation and testing
Fish passage planning and design for small waterway structures
James Cook University School of Engineering and Physical Sciences provides consulting, research and development services in fish
passage planning and design, and development of fishway technology for small waterway structures (e.g. road culverts, grade control).
Fish passage facilities such as baffled and ramp structures are designed to meet multipurpose design requirements for these sites, to
overcome hydraulic barriers (e.g. high velocities, water surface drop), and to mitigate aquatic connectivity impacts within the waterway.
An ecohydraulics approach is adopted using integrated physical and biological performance assessment within the stream environment.
Consulting services include catchment prioritisation, corridor scale planning, project design, site evaluation and product development.
CONTACT Ross Kapitzke, Environmental Engineer Ph: 0402 316 404 E: [email protected]
Web: http://www.jcu.edu.au/engps/research/consultancies/JCUPRD_046895
School of Engineering and Physical Sciences
Culvert inlet / fishway exit works
Pipe baffle fishway – offset / corner
Rock ramp / cascade fishway
Apron – offset baffle fishway
Zone D Zone C Zone B Zone A
4–Barrel pipe culvert, causeway and apron
Rock ramp ridges / cascades
Flow
Low flow
Ross Kapitzke • JCU School of Engineering • fish passage planning and design • fishways\jcu engineering_fish passage_university creek discovery drive -/4/09
University Creek Discovery Drive box culvert fishway PS02
(Photo: Ross Kapitzke 10/04/06) (Photo: Ross Kapitzke 15/01/04) (Photo: Ross Kapitzke 13/01/04)
Discovery Drive prototype box culvert fishway is located on University Creek on James Cook University campus in Townsville
University Creek has 13 native freshwater fish species – the crossing was a barrier to fish migration under some flow conditions
the offset baffle fishway was developed in the culvert in 2002, and the corner “EL” baffle fishway was developed in 2005
upstream passage for all species has been available since 2003 – with more favourable conditions through the fishway zones
CLIENT AND PARTNERS
Department of Main Roads
PROJECTOBJECTIVES
provide for upstream fish passage at crossing
maintain hydraulic capacity and function of culvert
develop and test prototype fishway for box culverts
provide demonstration site for community
SCOPE OF WORK
concept design of fishway facilities
design and development of prototype fishways
detailed design and construction of fishway facility
hydraulic and biological monitoring and evaluation
CROSSINGDESCRIPTION
3-cell 3600 mm x 3000 mm box culvert 22 m long
box culvert slope 1 in 200 (0.5 %)
upstream and downstream aprons with wingwalls
natural grade control in creek 80 m downstream
FISH PASSAGE BARRIERS
water surface drop under low tailwater conditions
high velocities and turbulence at culvert outlet
high velocities in culvert barrel and at culvert inlet
regular culvert cross section and lack of rest place
MITIGATIONMEASURES
offset baffle fishway within Barrel # 1
corner “EL” baffle fishway within Barrel # 3
R & D facility provides for field testing of fishway
devices for comparison with hydraulic lab testing
OTHER FEATURES
hydraulic / biological monitoring facilities (gauge
boards, flow control boards, fishway fences, cage)
access facilities (ladders, platforms, handrails)
provisions for adaptation and testing
Fish passage planning and design for small waterway structures
James Cook University School of Engineering and Physical Sciences provides consulting, research and development services in fish
passage planning and design, and development of fishway technology for small waterway structures (e.g. road culverts, grade control).
Fish passage facilities such as baffled and ramp structures are designed to meet multipurpose design requirements for these sites, to
overcome hydraulic barriers (e.g. high velocities, water surface drop), and to mitigate aquatic connectivity impacts within the waterway.
An ecohydraulics approach is adopted using integrated physical and biological performance assessment within the stream environment.
Consulting services include catchment prioritisation, corridor scale planning, project design, site evaluation and product development.
CONTACT Ross Kapitzke, Environmental Engineer Ph: 0402 316 404 E: [email protected]
Web: http://www.jcu.edu.au/engps/research/consultancies/JCUPRD_046895
School of Engineering and Physical Sciences
Fishway Zone
Fishway Zone
Flow
Barrel 3
Barrel 2
Barrel 1 Barrel 2 Barrel 3Barrel 1
Fishway zone - corner baffle
Fishway zone - offset baffle
Types of Fish Barriers
Dams
Burdekin Dam Earth Bund
Sand Dams Weirs
Rita Island Aplins Weir
Natural Barriers Weed Chokes
Alligator Creek Falls Saltwater Creek
Road Crossings
Bogie River
Stuart Creek Culvert Removal
BEFORE: This crossing in Stuart creek was a barrier to fish, preventing them from moving upstream during crucial
stages of their lifecycle.
AFTER: Stuart creek after the crossing has been
removed (December 2008)
AFTER: 6 months after the crossing has been
removed, habitat connectivity has been restored. 5
different species of fish have now being found
upstream of the old crossing that were previously
absent from that reach of the creek. (May 2009)
Introduction to Fish Passage
Tim MarsdenQld Department of Primary Industries and Fisheries
Fish Passage Assessments and Barrier Modification“It will be interesting to note the effect of the
new Clare Weir on barramundi numbers”
S.H. Midgley 1977
Clare Weir and Pool and Weir Fishway
Presentation Structure
• Migration Strategies
• Barriers
• Fishway Designs Explained
• Critical Fish Passage Design Issues
• Fishways in the Burdekin
Clare Weir and Fish Lock
What is migration?
Why do Aussie fish do it?
• Regular movements of freshwater fish between
rivers, floodplains or the sea to breed and grow are
critical for the survival of native fish populations.
• Australia has a wide variety of freshwater rivers
and streams
• Most of the inland rivers dry up to a series of
waterholes between rains. On the coast many of the
streams flow year-round
• These changing stream conditions have shaped
the freshwater fish of Australia, with the “boom
and bust“ cycle leading to many unique migratory
patterns among our fish.
Diadromous & Potadromous
Diadromous
Diadromous fishes are truly migratory species whose distinctive characteristics
include that they (i) migrate between freshwaters and the sea; (ii) the movement is
usually obligatory; and (iii) migration takes place at fixed seasons or life stages.
•Catadromous: Describes diadromous fishes which spend most of their lives in
fresh water, and which migrate to sea to breed.
•Anadromous: Describes diadromous fishes which spend most of their lives at
sea, and which migrate to freshwater to breed.
•Amphidromous: Describes diadromous fishes in which migration between
freshwater and the sea is not for the purpose of breeding, but occurs at some
other stage of the life cycle.
Potamodromous
Fish species whose migrations occur wholly within freshwater for breeding and other
purposes.
Example Migration PatternMangrove Jack move from freshwater to the sea to breed and then the
young move back into freshwater rivers and lagoons to feed and grow.
Migratory Native Fish Fish Species and Life Stages• In Australia fish are moving at all life stages and sizes (7mm to 3000mm)
• Adults are dispersing after spawning and juveniles are dispersing after
hatching
• Need to know species utilising structure to determine what species will be
catered for
• Most structures need to cater for all
fish, not just single species
What is a
barrier?What is a Fishway?
• Fishways are structures placed on or around man-made barriers
(such as dams and weirs) to assist the natural migration of fishes.
• Most fishways enable fish to pass around the barrier by
swimming up a series of relatively low steps (hence the term “fish
ladder") into the waters on the other side.
• The velocity of water falling over the steps has to be great
enough to attract the fish to the fishway, but it cannot be so great as
to wash fish back downstream or to exhaust them to the point where
they cannot continue their journey upriver.
• Fishways can be quite simple, such as a rock ramp fishway,
which provides many small rocky steps, or very high-tech such as a
fish lift, which uses the same principle as lifts in tall buildings.
Culvert Fishways• Most culverts in Australia are no slope culverts and
mainly form velocity barriers to passage
• Some culverts may also have drops on downstream
side that inhibit passage
• New culverts should be equal or greater to channel
capacity and the base should be sunken into bed to
allow channel to form through culvert
• Retrofits may use baffles to break up flow or have
rock ramp downstream that backs water through
culvert.
• Rock ramps also help to fix drops on downstream
of culverts
• Retrofits generally can only operate on low to
moderate flows successfully
Nature Like Fishways• Nature-like fishways use large rocks and timbers to create pools and small
falls that mimic natural structures.
• Include Rock-Ramp, Log and Bypass Channel fishways
• Because of the length of the channel needed for the ladder, most such
structures are most appropriate for relatively low barriers.
• Have been used successfully on high barriers as partial width fishways
Denil Fishways• A Denil fishway uses a series of symmetrical close-spaced baffles in a
channel to redirect the flow of water
• Denil fishways need not have resting areas, although pools can be
included in one to provide a resting area or to help reduce the velocity of
the flow
• Such fishways can be built with switchbacks to minimize the space
Vertical Slot Fishways• A vertical slot fishway is similar to a pool and weir system except that each
cell wall has a narrow slot in it near the channel wall.
• This allows fish to swim upstream without
having to leap over an obstacle.
• Vertical slot fishways also tend to handle
reasonably well seasonal fluctuation in water
levels on either side of the barrier.
Lock Fishways• Fishlocks are used to transfer fish over high
dams where a vertical-slot fishway would be too
long.
• The fishlock consists of a entrance chamber
connected to a vertical chamber which extends to
the top of the weir. An exit channel connects the
vertical chamber to the storage.
• Migrating fish are attracted into the entrance
chamber and then into the bottom of the vertical
chamber.
• The vertical chamber is then filled to storage
level, where another attraction flow entice fish to
swim into the exit channel.
• The whole process is controlled by an on-site
computer.
High Fishways
• Fish lifts provide an elevator to carry
fish over a barrier.
• They are well suited to tall barriers.
• Fish swim into a collection area at
the base of the obstruction.
• When a critical mass of fish
accumulate in the collection area, they
are crowded into a hopper
• The hopper carries them into a flume
that empties into the storage above the
barrier.
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 1
OceanWatch and NQ Dry Tropics Fish Passage Tour, Townsville, 22/10/09
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected]/07/09 Ross Kapitzke_fish passage planning and design_case study [email protected]
University Creek fishways – Mitigation of migration barriers
Ross Kapitzke Environmental Engineer1
Mullet
Commercial fisheries
Gudgeon
Conservation & biodiversity
Freshwater fish values
Recreational fishing
Australian bass
Traditional/cultural values
Long finned eel
Freshwater fish spend all or part of their life cycle in freshwater environments
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 2
» Life cycle stages - Spawning and growth dispersal
» Recolonising habitats in response to flood or drought
» Compensation for downstream drift
» Gene flow through evolutionary-scale movement
Migration requirements for freshwater fish
Stream zones, fish life cycles, habitat zones & migration
Intermediate / transfer
Upland / headwater
Lowland / floodplain / freshwater wetland
Stream Zones
Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected]
Spawning habitat
Growth habitat
Potamodromous
Wholly freshwater
Catadromous
Marine spawning
Anadromous
Freshwater spawning
Juvenile dispersal migration
Adult spawning migration
Adult dispersal migration
Estuary / coastal / saline wetland
22/10/09 3
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 2
Fish migration barriers – small waterway structures
Dams, weirs, barrages Culverts, causeways
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 4
g
Flood gates, tide gates
y
Control structures, drop boards
channel simplification
Fish passage barrier problems – culvert inlet, outlet, barrel
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 5
velocity
turbulence
water surface drop
water depth
lack of shelter
Principal hydraulic barriers at waterway crossing zones
Source: Kapitzke 2009, Culvert Fishway Planning and Design Guidelines for DMR
6
Zone D Zone C Zone B Zone A
High velocity
Flow depth
Turbulence
Water drop
No shelter
622/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected]
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 3
Fishway component types for culverts and open channels
Source: Kapitzke 2009, Culvert Fishway Planning and Design Guidelines for DMR
» Offset baffle fishway
» Corner “EL” baffle fishway
Baffle fishways for box culverts
Baffle fishways for pipe culverts
7
» Offset baffle fishway
» Corner “Quad” baffle fishway
» Rock ramp fishway
» Rock ramp cascade fishway
Ramp fishways for open channels
722/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected]
Application of fishway components in hydraulic zones
Source: Kapitzke 2009, Culvert Fishway Planning and Design Guidelines for DMR
8
Zone D Zone C Zone B Zone A
Offset baffle - box
Corner “EL” baffle
Offset baffle - pipe
Corner “Quad” baffle
Rock ramp
Rock ramp / cascade
822/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected]
Fish passage design for waterway structures – key requirements
Source: Kapitzke 2009, Culvert Fishway Planning and Design Guidelines for DMR
Drainage, utility, stream integrity, environmental values, amenity
» Provide for fish passage over range of fish migration flows in the stream
» Provide suitable hydraulic conditions for fish – velocity, flow depth…
» Provide flow continuity, fish pathway, attraction flows and exit conditions
Fish passage
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 9
» Minimise obstruction to flow to not adversely affect flood capacity
» Minimise debris accumulation and sediment deposition
» Provide for ready cleaning and maintenance of culvert
» Provide for transport, drainage and other utility functions
» Maintain integrity of structure and adjoining waterway
» Maintain natural flow regime, geomorphic and ecological processes
» Provide for monitoring, access and maintenance of fishway facility
Drainage, utility, stream integrity, environmental values, amenity
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 4
Prototype #1 Discovery Drive offset baffle fishway
Prototype #2 Douglas Arterial Project rock ramp fishway
University Creek, Townsville, north Queensland, Australia
Prototype fishway design, development and testing
10
Prototype #2 Douglas Arterial Project rock ramp fishway
Prototype #3 Solander Road pipe culvert fishway
Prototype #4 Discovery Drive corner baffle fishway
1022/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected]
Long-finned eel
Black catfishAgassiz's glassfish
University Ck fish community – 13 native species observed in 2003
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 11
Barred Grunter
Empire gudgeon Eastern rainbowfish
Hyrtl’s tandanSpangled perch
Purple spotted gudgeon
University Creek Solander Road – Prototype culvert fishway
Objectives
Prototype #3
1222/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected]
» Aquatic habitat and connectivity assessment for University Creek
» Fish migration barrier assessment and evaluation of mitigation options
» Design, fabrication and installation of prototype fishway facilities
» Hydraulic and biological monitoring and evaluation of fishways
Scope of work
» Provide fish passage and remediate degraded waterway crossing
» Establish prototype fishway for pipe culvert and causeway
» Provide demonstration site for managers, designers & community
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 5
Solander Road crossing: Barriers to upstream migration
A – Downstream channel & drop-off
» Excess turbulence
» Water surface drop
B - Culvert outlet & apron slab
» Shallow flow
C - Culvert barrel
» High velocities
D – Culvert inlet & upstream channel
» High velocities
» Excess turbulence
» Lack of shelter
Source: Kapitzke 2007, Solander Road pipe culvert fishway case study design and prototype monitoring report
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 13
» High velocities» Excess turbulence
» Lack of shelter
Zone D Zone C Zone B Zone A
4–Barrel pipe culvert, causeway and apron
Flow
Low flowMedium flow
Solander Road prototype culvert fishway - Section
A - Rock ramp / cascade fishway
B - Apron – offset baffle fishway
C - Pipe baffle fishway – offset / corner
D - Culvert inlet / fishway exit works
Source: Kapitzke 2007, Solander Road pipe culvert fishway case study design and prototype monitoring report
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 14
4–Barrel pipe culvert, causeway
and apron
Flow
Apron rockZone D Zone C Zone B Zone A
Low flow Cascade rock
Rock ramp ridges / cascades
Source: Kapitzke 2007, Solander Road pipe culvert fishway case study design and prototype monitoring report
Solander Road prototype culvert fishway – Pipe & apron
Culvert Plan View
B
A
Flow
B - Apron – offset baffle fishway
Barrel 1
C - Pipe – offset baffle fishway
Barrel 2
C - Pipe – corner baffle fishway
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 15
Section B-B: CulvertSection A-A: Culvert and apron
Corner baffle
Offset baffle
Apron - offset baffle
Flow
Offset / corner baffle
A
4–Barrel pipe culvert, causeway
and apron
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 6
Solander Road prototype culvert fishway – Overall plan
D - Culvert inlet / fishway exitBypass fishway
culvert and exit
channel (future)
4–Barrel pipe culvert and causewaySolander Road
Rock ramp ridgesLegend – rock protection
Source: Kapitzke 2007, Solander Road pipe culvert fishway case study design and prototype monitoring report
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 16
A - Rock ramp / cascade fishway
Rock ramp ridge / cascade
Table drain and bypass
entrance channel / rock
ramp fishway
B - Apron – offset baffle fishway
C - Pipe baffle fishways
University Creek
Flow
Ridge rock
Batter rock
Apron rock
Cascade rock
Corner “Quad” baffle fishway for pipe culverts: Major features
Prototype #3 – Solander Road Corner ”Quad” baffle fishway
Good self cleaning attributes for sediment and debris passage
30/06/09 Ross Kapitzke_aquatic habitat and connectivity_opportunities for [email protected]/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 17
Minimal effect on flow resistance and flow conveyance in culvert
Less suited to high gradient culverts and shallow high velocity conditions
Suited to range of flow depths, including relatively deep low velocity flow
Applied to culverts with high tailwater conditions
Provides low velocity zones, shelter areas and flow circulation for fish
17
University Creek Discovery Drive prototype culvert fishways
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 18Prototype #4 – Corner “EL” baffle Prototype #1 – Offset baffle
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 7
» Water surface drop at culvert outlet
» Shallow water depth within culvert
» High velocities within culvert barrel
» Streamlined flow and lack of resting places
» Excess turbulence
» High velocities and lack of shelter at culvert inlet
Barriers to upstream migration at Discovery Drive crossing
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 19
High velocities and lack of shelter at culvert inlet
Discovery Drive culvert fishways - Prototypes #1 and #4
Fishway Zone
Fishway Zone
Flow
Barrel 3
Barrel 2
Barrel 1
P #4 – Corner “EL” baffleP #1 – Offset baffle
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 20
Barrel 2 Barrel 3Barrel 1
Fishway zone -corner baffle
Fishway zone -offset baffle
Good self cleaning attributes for sediment and debris passage
Offset baffle fishway for box culverts: Major features
Prototype #1 – Discovery Drive Offset baffle fishway
30/06/09 Ross Kapitzke_aquatic habitat and connectivity_opportunities for [email protected]/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 21
Minimal effect on flow resistance and flow conveyance in culvert
Less suited to low gradient culverts and deep slow water conditions
Suited to shallow high velocity flow in culverts
Applied to steep culverts or culverts with low tailwater conditions
Provides low velocity zones, shelter areas and flow circulation for fish
21
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 8
Corner “EL” baffle fishway for box culverts: Major features
Prototype #4 – Discovery Drive Corner “EL” baffle fishway
Good self cleaning attributes for sediment and debris passage
30/06/09 Ross Kapitzke_aquatic habitat and connectivity_opportunities for [email protected]/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 22
Minimal effect on flow resistance and flow conveyance in culvert
Less suited to high gradient culverts and shallow high velocity conditions
Suited to relatively deep low velocity flow in culverts
Applied to culverts with high tailwater conditions
Provides low velocity zones, shelter areas and flow circulation for fish
22
Discovery Drive
Douglas Arterial Ring Road
The Townsville Hospital
Initial diversion drain
4-span, 2-lane bridge
Douglas Arterial Road prototype rock ramp fishway
Prototype #2 – Douglas Arterial Road rock ramp fishway
Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected]
Diversion drain
University CreekFlow
Diversion drain and
rock ramp fishways
Initial diversion drain
proposal
22/10/09 23
A
Flow
Ridge
Pool
200 - 300
Ridge rock
Detail – Ridge rock
Rock ramp plan
Douglas Arterial Road rock ramp fishway – design & construction
Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected]
2000 2000 2000 3000
Flow
200100
RidgePool
Section A-A
22/10/09 24
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 9
Low flow
Douglas Arterial Road rock ramp fishway – flow conditions
Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected]
Medium flow
22/10/09 25
Rock ramp fishway for open channels: Major features
Prototype #2 – Douglas Arterial Road rock ramp fishway
Good self cleaning attributes for sediment and debris passage
30/06/09 Ross Kapitzke_aquatic habitat and connectivity_opportunities for [email protected]/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 26
Little obstruction to flow and little effect on flow conveyance
Provides low velocity zones and multiple connected pathways for fish
Nature like fishways used to overcome water surface drops in streams
Suited as free standing grade control or attached to culvert inlet or outlet
Provides passage for variety of fish species at range of stream flows
26
Fish passage planning and design – JCU scope of services
Aquatic connectivity & impact assessment
Fish passage design – Road corridor scale
Fish passage design – Site scale
» Barrier significance
» Mitigation options and priority
» Fish corridor classification
» Priority road crossings
» Hydraulic barrier evaluation
» Fish passage options
Field prototype and laboratory testing
Design and fabrication of fishway devices
Industry guidelines and collaboration
» Hydraulic laboratory testing
» Field prototype testing
» Fishway device configuration
» Component fabrication
» Planning and design guidelines
» Collaboration & demonstration
272722/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected]
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 10
Aquatic connectivity impact assessment – Catchment / reach scale
» Identify aquatic connectivity barriers at catchment / reach scale
» Evaluate barrier significance – habitat value x barrier threat
» Identify feasibility and priorities for barrier mitigation
Objectives
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 28
» Reconnaissance level habitat assessment
» Fish community and fish movement behaviour
» Barrier significance and connectivity impacts of structures
» Mitigation options, effectiveness and feasibility
» Prioritisation for barrier mitigation
Scope of work
Fish passage planning and design – Road corridor scale
» Identify fish movement corridor crossings of road corridor
» Establish aquatic connectivty goals and design characteristics
» Identify priority waterway crossings for fish passage (& integrated fauna)
Objectives
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 29
» Waterway character and fish habitat assessment
» Fish species, fish movement behaviour and characteristics for design
» Fish movement corridor locations and classification
» Fish passage goals and prioritisation of corridor crossings
» Mitigation design options for type crossings (and integrated fauna)
» Optimising waterway crossing type and configuration
Scope of work
Fish passage planning and design – Site scale
» Identify fish migration barriers at waterway structure
» Establish fish passage and multipurpose design requirements
» Define and evaluate fish passage (and integrated fauna) facility for site
Objectives
22/10/09 Ross Kapitzke_University Creek fishways_OceanWatch tour, Townsville Oct [email protected] 30
» Fish habitat, fish movement behaviour and characteristics for design
» Fish passage barrier evaluation – hydraulic zones
» Objectives, criteria and constraints for fish passage design
» Fish passage options and evaluation for multipurpose requirements
» Design configuration of fish passage (and integrated fauna) facility
Scope of work
Retrofit or new: Remediation of barriers at existing structures; Mitigation design for new structures
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