Yarra Oval Remediation
Yarra Oval upon completion of major turfing works
Yarra Oval is set to reopen on April 27th following an extensive
remediation project, successfully completed with the co-ordination of Randwick
City Council; Statewide Civil and M Collins and Sons (Contractors) Pty Limited.
Randwick City Council under the leadership of Project Manager George Bounassif,
with a strong commitment to the local community, set about to establish a first
class playing field which would meet the international standards for rugby
league. In particular, the council sought to provide the local La Perouse Junior
Football Club with an environmentally sustainable and economically viable
playing field, for the benefit of the community at large. A training field for
the junior rugby league club and two spectator hills were also to be included on
the site.
The project undertaken by Statewide Civil saw the existing field as undersized,
requiring extensive capital works - including 10,000 tonnes of cut and fill and
the existing embankment being pushed forward to increase the size of the top
field.
Construction began on the bottom field but was delayed upon the discovery of
domestic waste being closer to the surface than anticipated. This necessitated
testing on the top field which revealed similar amounts of contamination. At
this stage, an executive decision was made to cap both fields with geosynthetic
clay liners (GCL) in order to ensure the safety of the field's users and also
for the protection of the surrounding natural environment.
The next step involved the installation of an irrigation system that fulfilled
the Council's aim to recycle the majority of water caught on the field. This was
achieved with the installation of plastic drainage cells to collect water run
off into holding tanks, to be used to irrigate the field. This decision
demonstrated Randwick City Council's ongoing commitment to environmentally sound
principles.
M Collins and Sons then installed a blanket layer of Collins Construction Sand
in order to adequately stabilise the earlier installed irrigation system. A
250mm depth of Australian Standard 4419 accredited Virgin Excavated Natural
Material (VENM) was then carefully installed on top of the Collins Construction
Sand. The use of contaminant free VENM, processed by M Collins under strictly
controlled protocols was especially beneficial for the Yarra Oval project, due
to the material's hydraulic and nutritious superiority and particle size
consistency, allowing for optimal results as a growing medium. The use of a VENM
certified growing medium was the critical decision to ensure the successful
remediation of Yarra Oval would occur .
M Collins and Sons Transport Division was responsible for the coordination of
all sand and soil deliveries to the site, completed throughout the project. With
its modern fleet of trucks running over a period of 10 days, Collins was able to
cart into the site, in excess of 7880 tonnes of VENM Accredited Collins Screened
Soil and Collins Construction Sand.
M Collins and Sons, in collaboration with Randwick City Council, researched the
receptive benefits of using different turf varieties on the project site.
Collins Sportscouch was selected for the Yarra Oval site due to its vigorous
establishment rate and excellent recuperative potential. M Collins and Sons
Contracting Division completed the installation of the turf in five days, laying
an average of 2300m2 of Collins Sportscouch per day. The use of Collins
automated mechanical equipment contributed to the speed and precision with which
the turf was laid on site.
Following completion of the major onsite turfing works, Collins was given the
responsibility of developing an eight week maintenance program which would allow
for the optimal establishment of the turf. Under the guidance of the experienced
Collins project foreman David Pocock, the Collins Contracting Division
maintained, topdressed and fertilized the site using Collins Australian Standard
4419 accredited 90/10 Sportsmix and fertilizer selected to suit the conditions.
Due to the diligence and commitment demonstrated by all parties involved with
Yarra Oval, the site work has been completed and established on schedule,
despite Sydney experiencing its wettest summer period for sixteen years and is
set to flourish as a first class community sporting venue.
Yarra Oval bottom field post topdressing and The
Collins Topdresser
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