AUSTRALIAN CAPITAL TERRITORY

Gungahlin Drive Extension Declaration 2004 (No 2)

Disallowable Instrument DI2004-154

EXPLANATORY STATEMENT

Overview

Under the Gungahlin Drive Extension Authorisation Act 2004 the Minister may, in writing, declare that stated works are
a)	part of the construction of the GDE; or
b)	related to the construction of the GDE.

Such a declaration is a disallowable instrument.

The works being declared to be related to the construction of the GDE are:
1.	the water quality and sediment ponds
2.	new Kaleen horse paddocks
3.	the public artwork
4.	offices for the Site Management Team

Description of works

1.	Water quality and sediment ponds 
Five water quality ponds are included as part of GDE as part of the environmental management plan.  These are mainly off the alignment of the road and are located at:
i.	adjacent to Barton Highway 
ii.	adjacent to Ginninderra Drive 
iii.	adjacent to Belconnen Way 
iv.	within Glenloch 
v.	on the foreshore of Lake Burley Griffin

2.	Kaleen Horse Paddocks

Replacement horse paddocks are being installed in Kaleen as part of the GDE project, as the route of GDE severs the current horse paddocks.  These new horse paddocks are located between GDE and the eastern edge of the suburb of Kaleen (extending between Ellenborough Street and Ginninderra Drive).  The works associated with these paddocks include new fencing, water troughs, some tree planting and the construction of new yards and an access road.  The construction of these paddocks will be undertaken as part of the Preliminary Works construction contract to enable continuous use of the Kaleen horse paddocks during construction of the GDE project.  

3.	Public Artwork

A suite of public artworks are included as part of the GDE project.  It is the first time an ACT capital works road project has included a public art component.  A public artist has been engaged by Roads ACT to design these works.  The public artworks include:
•	Rhizome sculpture at Barton Highway interchange with GDE
•	Three shard mounds will be constructed at three different locations along the route of GDE (these are just north of the Ginninderra Drive interchange, just north of the Belconnen Way interchange and at Glenloch Interchange).  
•	A concrete noise wall will extend past the AIS.  
•	Coloured retaining walls at Aranda.  These retaining walls will be coloured using concrete pigments to represent the quarry like cut the road makes through the landscape.  
•	A sculptural steel pedestrian bridge at Aranda attached to the concrete bridge structure over GDE.
•	Transparent UV resistant plexi-glass panel noise walls on the bridge over Belconnen Way.  

4.	Offices for the Site Management Team

As part of the Preliminary Works contract work will be undertaken to establish an office for the GDE Site Management Team for the duration of the construction of the GDE project.  This site office will be a demountable building that will be a temporary structure with a duration of approximately 2.5 years, ie for the duration of the construction of the GDE project.  The site office will be the on-site point of public contact for the GDE project and therefore requires a visitors parking area and a security fence around the office complex.  It should be noted that no construction machinery will be stored in this area.