EXT. GRAPHICS

Music up.

Water Corporation, DM Civil and Brierty Contractors logos move onto the screen.

Title: "The Stirling to Harvey Pipe and Road Project." 

"An Alliance between DM Civil, Brierty Contractors and the Water Corporation of Western Australia."

EXT. GENERAL WORKS

A montage of pipe laying, welding and road works.

VOICE OVER

The DM Civil - Brierty Contractors Joint Venture was selected from 22 contractors from around Australia to form an Alliance with the Water Corporation of Western Australia.

EXT.  AERIALS

Aerial views of the Sterling and Harvey dams.  Superimpose "The Stirling Alliance logo"

VOICE OVER

The 'Stirling Alliance' was created to implement a major capital works project involving the laying?  Installation of over 19km of pipeline between Stirling and Harvey weir and the  re-alignment and construction of 10km of roadway including four causeways.

End on aerial view of causeway number 1.

EXT.  AERIAL VIEW OF THE TOWN OF HARVEY

VOICE OVER

This 32 million dollar major capital works project also involved a new pipeline to supply treated water to Harvey.

EXT.  SITE OFFICE

David, from the Water Corporation works in his office. 

VOICE OVER

Determining the pipeline route from Stirling dam posed enormous problems.  Several options were considered.  Prohibitive costs eliminated a tunnelling option.  The second option was to install the pipe along existing roadways that would have required pumping stations and created maintenance problems for generations to come.

End on 2 people looking over plans on the bonnet of their 4WD.

EXT.  HARVEY VALLEY

Early shots in the bush along the pipeline route before construction.  Include steep terrain.

VOICE OVER

The preferred option was for a below ground gravity pipeline along the environmentally sensitive Harvey River valley.  This pipeline route was the home of several rare and endangered species including the Western Ring-tailed possum and the red-tailed Black Cockatoo.

Cut to Aerial through the valley.

VOICE OVER (CONT'D)

The Environmental Protection Authority sought a Public Review to the project and after extensive consultation and  assessments, approval was given.

EXT. NARROW VALLEY

The pipe is being layed in the narrow corridor.

VOICE OVER

The Joint Venture Partners were committed to providing minimal impact on the environment.  The steeply forested 8km valley section was limited to a narrow 13 meter corridor and at times this was further decreased to only 9 meters.  The difficulties involved with this narrow corridor and trucking the large 1.4m diameter steel pipes to site were further compounded by only 3 access points.

EXT.  HARVEY VALLEY

Small diggers are clearing a narrow path through the valley.

VOICE OVER

Adopting Conservation and Land Management's clearing methodology ensured all habitat trees were marked and protected.  A limestone raft over access routes alleviated the need for washdown stations for dieback control.  Topsoil was stockpiled for redistribution in the same area and dieback free sand was also used for all bedding and back filling.

EXT. HARVEY VALLEY

Continue pipe laying in the narrow valley.

VOICE OVER

Excavators had to worked in tandem to move these long 12 meter pipes in the narrow corridor.

MAN

Talks about the difficulties in the narrow corridor.  ........................................................................................................................................  ............................................................................................................................................................................................................

EXT.  CAUSEWAY/EARLY CONSTRUCTION

General shots of a roadworks and pipe trenching.  Include shots of rock & river crossings.  (No footage of rocks protecting banks)

VOICE OVER

Blasting for trench excavation and cut to fill operations generated a large volume of rock.  All rock was recycled and some was placed on the banks of creek and river-beds to prevent soil erosion and to aid vegetation recolonisation.  Large boulders were placed throughout rehabilitation areas to create a natural landscape and provide shelter for reptiles.  Excess rocks were used for culvert protection, filling erosion gullies and to rehabilitate borrow pits.

Cut to shots of the water trucks.

VOICE OVER (CONT'D)

Dust monitoring apparatus was used to verify dust emissions from construction, especially during strong summer winds.  Water pumps were also located in bunded compounds to prevent contamination during extraction.

EXT. DUMPTRUCKS/PLANT MOVEMENT

Through trees if possible.

VOICE OVER

Communication strategies used by the alliance involved the fitting of CB radios in all equipment, extensive use of one-way routes and fire fighting skills were taught to construction workers.

EXT. MULCHING MACHINE

In the river valley a machine mulches vegetation.

VOICE OVER

95% of cleared vegetation was recycled for rehabilition and erosion control and excess mulch was donated to the Harvey Shire and the local community for landscaping.

EXT.  CLEARED PATH

The environmental officer talks to camera.

GIRL

Talks about erosion control and re-alignment around large trees.  ........................................................................................................................................  ............................................................................................................................................................................................................

VOICE OVER

Native seeds were also collected by representatives from the Pinjar community and used in the flora rehabilitation programme.

EXT.  LOGS BEING MILLED

With a chain saw a man cuts up several large logs.

VOICE OVER

Native title issues were also addressed by the Alliance. Here  negotiations with the Gnaala Carla Boodja community lead to access to certain areas in exchange for all millable timber from the clearing operations.  This timber was purchased by the Alliance and donated to the community for use in a training program for timber milling and furniture making.  Another program with the group involved the placement of hollow logs for the creation of additional fauna habitat. 

EXT.  HARVEY RIVER

VOICE OVER

When the Harvey River was temporarily diverted through a sacrificial culvert, marron trapped in the river bed were caught and later released back into the river. 

EXT. DAM

Ducks swim in a dam.

VOICE OVER

And when this dam was drained to allow construction of a nearby causeway, the local turtles and ducklings were also captured and relocated.

Cut to general shots of cows.

VOICE OVER (CONT'D)

The Stirling Alliance also provided new fences, ramps and watering points for the numerous stock that were shifted to enable production.

EXT. CAUSEWAYS

Aerials views of the causeways.

VOICE OVER

The new road constructed skirts the perimeter of the high water mark of the proposed dam crossing four large causeways.  Stringent environmental management for sediment control during construction was achieved through sedimentation ponds and coffer dams.

Cut to various shots of the completed causeways.

VOICE OVER (CONT'D)

All storm water is channelled to pollution control basins and filtered before entering the water catchment area.  This also ensures that any spill in the future is contained.

EXT. ROAD CUTTINGS

VOICE OVER

Extensive use of stepped batters were employed to prevented erosion in winter.  Deleterious clay and rock was removed and a limestone drainage layer installed over the subgrade to prevent pavement deformation.

EXT. HARVEY

A truck drives through town.

VOICE OVER

To truck in over 6000 loads of material and pipeline through the residential area of Harvey and working farms posed its own set of problems.  Curfews and speed restrictions were imposed on the transport teams to minimise disturbance to residents and increase public safety.

EXT.  STIRLING DAM

Inlet and outlet works and general shots around the dam.

VOICE OVER

The marron season attracted over 8000 visitors to the area compounding safety concerns for the alliance.  Maps were distributed to recreational fishing groups and local businesses and access roads were closed and a designated route to the dam was provided.

INT. INDUCTION MEETING

VOICE OVER

Compliance to the Alliance's environmental objectives was rewarded through two incentive schemes – one linked to the site allowance and the other to a risk and reward fee.  And when the 'Stirling Alliance's Environmental Management System' was audited by the Department of Environmental Protection, it received a 'full-compliance' result.

EXT.  GENERAL CONSTRUCTION

VOICE OVER

Because of the risks associated with the project including unresolved land acquisitions, environmental constraints, and the tightley compressed construction period, the Water Corporation elected to form an alliance with the DM Civil and Brierty Contractors.  The Water Corporation's Environment Branch Manager, Dr Bob Humphries described 'the quality of the work associated with the Stirling-Harvey pipeline probably meets or exceeds world's best practice.'

INT. SITE OFFICE

Tony from DM Civil and David from Water corporation look over plans.

VOICE OVER

With the aim of 'best for project' the Alliance was able to deliver innovations during construction saving the Water Corporation an additional $700,000.  It also delivered the project ahead of schedule and $3.2 million under budget!

INT. GRAPHICS

Water Corporation, DM civil, Brierty Contractors and the Alliance logos move onto the screen. 

VOICE OVER

The Water Corporation, DM Civil and Brierty Contractors, a true Alliance!