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GATESAWMA’s Combination Gates provide the benefit of combining overshot flow regulation and undershot water drainage with the ability to completely remove all gates from the waterway for unobstructed flow.

The dual leaf gates will be operated using the AWMA Hydraulic Power Pack (HPP). Due to the number of gates to be managed and geographical isolation of the sites, incorporation of AWMA’s HPP provides significant savings in energy, infrastructure and investment.

Three new regulators and three levees have been constructed to retain environmental water within the lakes and surrounding floodplain. An

existing regulator has been refurbished to provide some flexibility in the management of smaller volumes of water in the most southern lakes. The infrastructure will allow restoration of a more natural flooding regime to the Hattah Lakes, with small floods provided every 2 to 3 years and larger floods every 8 years (when water is available).

This project is a joint initiative of the Mallee Catchment Management Authority, Department of Sustainability and Environment, Murray-Darling Basin Authority, Goulburn-Murray Water and Parks Victoria. Photo courtesy of Comdain Infrastructure.

FOR ENVIRONMENTAL WATERCOMBO

Dual leaf Combination Gates up to 6.5m high x 2m wide, along with Segmented Stopboard structures were custom designed, manufactured and installed for five sites within Victoria’s iconic Hattah Lakes.

NEW FLOOD READY DESIGNS

GENERALLYSPEAKING

State Water’s Wakool Regulator is to be replaced, as the existing structure

is in a state of disrepair. Being in a flood prone area, the design criteria for

a new water regulation structure specified the protection of the asset from

damage caused by rising water levels and floating debris.

The new 4in1 LayFlat is 4.7m deep, 12m wide and over 3m high. It will comply

with current OH&S requirements and provide better operational control and

operators’ safety.

The LayFlat’s actuation components are connected to a tamper-proof cabinet

containing hydraulic controls complete with isolation options. Operation is

available via AWMA’s portable petrol powered Hydraulic Power Pack (HPP).

The HPP further reduces the need for expensive infrastructure to be exposed

on site.

The hydraulic cylinders have been fully encased within the central piers, the

handrails are collapsible and the access platform removable.

Due to these design aspects, in the event of storms or floods, the asset can

be protected from water and debris damage.

The Australian water industry is very diverse, incorporating

water treatment, waste water, storm water, flood,

desalination, irrigation, environmental and more.

The range of water control infrastructure required to service

the industry along with the asset owners also varies greatly.

One thing that can assist in making things more coherent

is a common technical specification for water control

infrastructure.

There are a number of dedicated proprietary specifications

developed by major water authorities and many adhoc

specifications that are project specific. Most projects

refer to American and British penstock Standards which

are outdated and not relevant to the expectations of the

Australian water industry. There is no Australian penstock

specification or Standard.

AWMA has taken this to task, revised existing proprietary

specifications and worked with a number of industry

players to develop what could become the basis of the first

national Penstock and Stop board technical specification.

The “Australian Technical Specification for Fabricated

Water Control Infrastructure” has been developed to

provide standardisation of the design of water control

infrastructure across all sectors of the water industry.

The primary beneficiary will be the asset owners, but it

will also assist designers, consultants, constructors and

manufacturers.

This document has been created for the industry to use, and

is now available from the AWMA website.

AWMA acknowledge that it is a challenging task to cover

all areas of such a diverse industry. We therefore value your

feedback and comments to further develop this document

into a truly national specification and valuable tool for all to

use.

Brett KellyManaging Director

State Water’s custom designed AWMA Multi-Bay LayFlat Gate ensures all protruding components are collapsible, removable or encapsulated.

AWMA are pleased to publish the initial release of the Australian Technical Specification for Fabricated Water Control Infrastructure.

This specification, jointly developed by members of the Australian water industry, has taken input from stakeholders including major water utilities, industry associations and other penstock manufacturers.

The aim of this specification is to provide standardisation of design and fabrication of water control infrastructure across all sectors of the water industry. It covers requirements for the design, manufacture, supply, handling, delivery and installation of fabricated water control infrastructure.

The primary beneficiary will be asset owners, but the specification will also assist designers, constructors, manufacturers and installers.

To view and comment on the specification please visit our website.

Stainless steel TLF Penstocks have been designed, manufactured and installed for Melbourne Water’s Dights Falls Weir Replacement and Fishway Project.

The TLF penstocks are required to isolate the fishway during maintenance

shutdowns. Positioned in a public area, the gates feature tamperproof

non-protruding actuation systems. The non-rising spindles are under

lockable covers for manual operation via extension handles.

The Dights Falls Weir and Fishway is located in Abbotsford, Victoria.

The fishway will open up the Yarra and its tributaries to many species of

migratory fish whose upstream passage has been restricted by Dights

Falls for decades.

AWMA were engaged by Fulton Hogan for the project delivered by the

Waterways Alliance on behalf of Melbourne Water. The Waterways

Alliance is a partnership between Ecodynamics, Fulton Hogan, SMEC

and Melbourne Water.

Over 40 sites will be replaced with fully automated water

management equipment. The new structures will be controlled,

monitored and managed using cloud based software, via secure

web access. All sites have been individually inspected to ensure

the most appropriate water control gate and operational solution

is implemented at each location. The federally funded Private

Irrigation Infrastructure Operators Program (PIIOP) project will

be delivered through the AIM (Advanced Irrigation Management)

Alliance and is due for completion in 2013.

Pictured: Works have begun on the major channel networks

TECHNICAL SPECIFICATION RELEASED

DIGHTS FALLS FISHWAY

TENANDRA TO BE AUTOMATED AWMA water control infrastructure will be utilised for the $37million Tenandra Irrigation Scheme Modernisation Program.

HEAD OFFICE

Phone +61 3 5456 3331 Email info@awma.au.com118 Roviras Road, PO Box 433, Cohuna Victoria 3568

WASTEWATER DESALINATION FLOOD MIT IGATION ENVIRONMENTAL IRRIGATION

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