Bulletin Vol 2 Issue 7 - Welcome to Entracon · Landscaping Installation of Public Lighting...
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www.entracon.com.au the bulletin ENTRACON BIANNUAL UPDATE Volume 2, Issue 7 SPRING / SUMMER 2014/2015 Entracon 51 Melverton Drive Hallam Victoria 3803 Ph: 03 8786 3700 Fax: 03 8786 3722 Email: pro- [email protected] In this issue… Current Projects Lake Endevour Dam Upgrade Parkes, NSW Nine Mile Creek Reservoir Upgrade Longwood, Vic Boronia Retarding Basin Boronia, Vic Orde Hill Reservoir Upgrade, Mt Macedon, Vic St Georges Dam Creswick, VIC Wilsons Reservoir Upgrade Bullarook Booran Rd Reservoir Demolition Glenhuntly, Vic Completed Projects Dandenong Creek Rehabilitation Heathmont, Vic Charles Mutton Reserve Stormwater Fawkner, Vic Sunbury Landfill / Transfer Station Sunbury, Vic Jack Madigan Reserve Williamstown, VIC Burdens Park Springvale South Napier Conservation Park Strathmore, Vic Lake Endeavour Dam Upgrade, Parkes, NSW Lake Endeavour Dam is located on the Billabong Creek, approximately 25km east of Parkes. The dam was built in 1940 and when full covers an area of around 55 hectares, and holds 2400 ML Lake Endeavour Dam is the key water reservoir for the Parkes Shire and has performed and operated in a satisfactory manner for the past 76 years. However, the spillway capacity is now considered inadequate by mod- ern standards and requires strengthening and flood security works to be carried out . The upgrade works involve strengthening the Dam embankment and spillway training wall to ensure long term stability and integrity of the structure. Increased flood security will be achieved by widening/deepening the existing relief spillway and raising the current embankment crest. This infrastructure upgrade will maintain Lake Endeavour as a key water resource for the Parkes Shire for many decades to come
Transcript of Bulletin Vol 2 Issue 7 - Welcome to Entracon · Landscaping Installation of Public Lighting...
www.entracon.com.au
the bulletin
ENTRACON BIANNUAL UPDATE
Volume 2, Issue 7
SPRING / SUMMER 2014/2015
Entracon
51 Melverton Drive Hallam Victoria 3803
Ph: 03 8786 3700 Fax: 03 8786 3722
Email: [email protected]
In this issue…
Current Projects
Lake Endevour Dam Upgrade Parkes, NSW Nine Mile Creek Reservoir Upgrade Longwood, Vic
Boronia Retarding Basin Boronia, Vic
Orde Hill Reservoir Upgrade, Mt Macedon, Vic
St Georges Dam Creswick, VIC
Wilsons Reservoir Upgrade Bullarook
Booran Rd Reservoir Demolition Glenhuntly, Vic
Completed Projects
Dandenong Creek Rehabilitation Heathmont, Vic
Charles Mutton Reserve Stormwater Fawkner, Vic
Sunbury Landfill / Transfer Station Sunbury, Vic
Jack Madigan Reserve Williamstown, VIC
Burdens Park Springvale South Napier Conservation Park Strathmore, Vic
Lake Endeavour Dam Upgrade, Parkes, NSW
Lake Endeavour Dam is located on the Billabong Creek, approximately 25km east of Parkes. The dam was built in 1940 and when full covers an area of around 55 hectares, and holds 2400 ML Lake Endeavour Dam is the key water reservoir for the Parkes Shire and has performed and operated in a satisfactory manner for the past 76 years. However, the spillway capacity is now considered inadequate by mod-ern standards and requires strengthening and flood security works to be carried out . The upgrade works involve strengthening the Dam embankment and spillway training wall to ensure long term stability and integrity of the structure. Increased flood security will be achieved by widening/deepening the existing relief spillway and raising the current embankment crest. This infrastructure upgrade will maintain Lake Endeavour as a key water resource for the Parkes Shire for many decades to come
www.entracon.com.au
2014/15 Current projects
Volume 2, Issue 7
Lake Endeavour Dam Upgrade, Parkes, NSW
Client:
Parkes Shire Council
Project Design:
NSW Water Design Contract Sum: $ 8.0M
Key Aspects
Deep excavation Large scale construction works Working within an operating
dam environment
Works Include
Construction of Auxiliary Fuse Plug Relief Spillway
Embankment Strengthening Works Relocation of Existing and installation of
new instrumentation Service spillway training wall concrete
strengthening works Service spillway training wall post
tensioning works Upgrade of outlet works Reinforced concrete conduit
strengthening works
www.entracon.com.au
2014/15 Current projects
Volume 2, Issue 7
Nine Mile Creek Reservoir Upgrade, Longwood, Vic
Client:
Goulburn Valley Water
Project Design:
SKM
Contract Sum: $ 1.6M
Key Aspects
Remoteness of site Accessibility to works Large concrete pours Construction tolerances
Works Include
Removal/decommissioning of existing pipework and fittings including grouting of pipes.
Design and construction of coffer dam and all associated temporary works
Construction of earthen zoned embankment Construction of concrete and rock gabion spillway including
culverts and guard railing. Construction of access track
The Nine Mile Creek reservoir is about 150km north of Melbourne and provides the town of Longwood with its water supply. The dam is currently operated at less than full capacity and is in poor condition with excessive seepage and embankment instability. The project involves works to upgrade and im-prove the stability of the existing reservoir embankment and overall dam safety to ensure that a relia-ble supply of water is provided to the Longwood township.
www.entracon.com.au
2014/15 Current projects
Volume 2, Issue 7
Boronia Retarding Basin, Boronia, Vic
Client:
Knox City Council
Project Design:
Knox City Council Contract Sum: $ 1.5M
Key Aspects
Working in a live drainage asset Protection of existing gum trees Site access and proximity to
major road
Works Include
Bulk Earthworks Concrete Paving Design, construction and certification of timber boardwalks Landscaping Installation of Public Lighting Construction of Drainage and pit structures Construction of Retaining walls Top soiling and seeding of lawn areas.
Knox City Council has been working closely with Melbourne Water for the past 2 years to identify ways to improve the storage capacity of the retarding basin for flood protection of residents, without losing a much –valued park site . In its current form the Retarding Basin and surrounding drainage has a higher risk of reaching its full capacity and flooding overland. The upgrade works will signifi-cantly reduce the risk to as low as 2% .Comptetion of the project will see an improved useability of the park with creation of a ‘meadow’ and wetland garden, feature trees, wider paths and a multipur-pose plaza space.
www.entracon.com.au
2014/15 Current projects
Volume 2, Issue 7
Orde Hill Reservoir Upgrade, Mt Macedon, Vic
Client:
Western Water
Project Design:
GHD Contract Sum: $ 0.5M
Key Aspects
Limited access to work site Poor weather conditions Poor ground conditions Significant Asbestos removal
Works Include
Clearing, Topsoil and Grassing Chimney Filter Works Outlet Filter Protection Works Concrete Pits, hinged lockable lid. Drainage Blanket Upgrade Subsurface Drainage Excavate toe drain, stockpile and reinstate drain. Surface Drainage Rock line road side drain including lining, groin drains, toe
drain,
The Orde Hill Reservoir, located on the Willimingongon Creek, Mt Macedon has a capacity of 250 million litres. This reservoir is used to harvest and store water before it is transferred to Rosslynne Reservoir and/or the Graham Brock Reservoir, Woodend, where it is treated and distributed to customers as drinking water. On completion, the upgrade works will ensure Western Water meets ANCOLD guidelines for dam safety and the integrity of the Orde Hill reservoir will be improved and re-duce the risk of dam failure.
www.entracon.com.au
2014/15 Current projects
Volume 2, Issue 7
St Georges Dam, Creswick, Vic
Client:
Parks Victoria
Project Design:
SMEC Australia Contract Sum: $ 1.6M
Key Aspects
Poor Site access Poor ground conditions Deep excavation Flood water level management Extreme weather conditions
St Georges Lake Dam is located outside the township of Creswick. In late 2010 severe storms resulted in water levels creeping dangerously close to the crest of the dam wall. This close call reinforced the need fort eh 1-00 year old structure to gain and urgent upgrade. The new design of the dam and the spillway being constructed will reduce the volume of water held by the lake, therefore improving safety during high rainfall and flood events.
Works Include
Dewatering of the reservoir and water control management during construction;
Clearing, grubbing and off-site disposal of vegetation and other obstructions to the work;
Decommissioning of the piezometers and outlet works Removal of pedestrian footbridge over the primary spillway; Stripping and stockpiling of top soil; Excavation of the embankment Construction of the new spillway; Construction of the rockfill weir downstream of the secondary
spillway chute; Construction of pedestrian access from the south to north
extents of the site; Landscaping and grassing of all areas
www.entracon.com.au
2014/15 Current projects
Volume 2, Issue 7
Wilson reservoir Upgrade, Bullarook Vic
Client:
Central Highlands
Water
Project Design:
MWH
Contract Sum: $3 M
Key Aspects
High Bushfire Risk Protection of Heritage Buildings Maintaining water level in reser-
voir while under construction High Rainfall Risk
Works Include
Chimney Filter / Drains with Weighting Buttress. Filter Cutoff trench Outlet works, including Concrete encasement, brickwork
and discharge channel Cured in Place Pipe (CIPP) New auxiliary spillway including Cutoff and Riprap Crest capping materials and {Piezometer Extensions Establishment and monitoring or temporary deformation
monitoring survey points Salvage of existing outlet works structure brickwork Construction of embankment swale drain
Wilsons Reservoir is and earthen dam, immediately upstream of Beales Reservoir, and was constructed in 1891 with a capacity of 1010ML. The old dam was 285m log and up to 10 m high. To comply with ANCOLD’s 1 in 100,000 year flood requirements, Entracon has been engaged to up-grade the spillway, outlet pipeline, earthen embankment including the installation of sand filters, addition of a full height berm to meet ANCOLD guidelines, new auxiliary spillways and improved site drainage
www.entracon.com.au
2014/15 Current projects
Volume 2, Issue 7
Booran Rd Reservoir Demolition, Glenhuntly Vic
Client:
Glen Eira City Council
Project Design:
TGM Group
Contract Sum: 0.7M
Key Aspects
Concrete demolition within a residential area Noise control Pedestrian/ Traffic Management Proximity of site to main road.
Works Include
Mass concrete demolition Demolition of Earth embankments Bulk Earthworks Stormwater protection Tree and stump removal Protection of assets. Site dewatering
The former Melbourne Water Reservoir located on Booran Road occupies 1.6Ha and has been unused for well over 30 years. Glen Eira city council are now redeveloping this land into a passive recreational space for use by the local community. Whilst the majority of the concrete wall will be demolished, the reservoir walls along the east and north side will be retained as will the central sluice gate, which controlled water levels in the reservoir, as a link to the past history of the site,. Both of these will become key components in the park design.
www.entracon.com.au
2014/15 completed projects
Volume 2, Issue 7
Client:
Moreland City Council
Project Design:
Spiire
Contract Sum: $1M
Key Aspects Publicity of Project Public/Pedestrian Management and
Control Connection to MWC asset Heavy Rock excavation
Works Included Excavation for pipelines and foundations, including
dewatering, topsoil stripping and site levelling Excavation and installation of valve pits and buffer
storage tanks Excavation of diversion pump stations: sump pit and wet
well onstruction of Raingarden and underground day storage Installation of GPT
Charles Mutton Reserve Stormwater, Fawkner, Vic
Client:
City of Moonee Valley
Project Design:
AECOM
Contract Sum: $0.8M
Key Aspects Heavy rains delaying progress Conflicts with existing services Redesign of pipe runs to avoid services Deep excavation Limited site access
Works Included Bulk earthworks Removal of existing services Stormwater Drainage pipes 250m Storm Trap underground Levee Installation Installation of Irrigation System Construction of rock riffle Landscaping and planting
Napier Conservation Park, Strathmore, Vic
www.entracon.com.au
2014/15 completed projects
Volume 2, Issue 7
Works Include
Installation of driven piles Construction of the upper and lower concrete slabs/platforms Construction of the vertical concrete wall between the upper
and lower concrete slabs Construction of the steel roof including its supporting columns Installation of roof drainage Installation of lighting and GPO items Installation of works site drainage system.
Client:
Hume City Council
Project Design:
Form Structures
Contract Sum: $0.7M
Client:
Hobsons Bay City
Council
Project Design:
Spiire Australia Contract Sum: $ 0.95M
Key Aspects
Deep compaction New to Australia -
First construction methodology using RIC7000 Poor ground conditions
Jack Madigan Reserve, Williamstown, Vic
Sunbury Landfill/Transfer Station, Sunbury, Vic
Works Included Bulk Earthworks Deep Compaction Landscape works Grassing and lawn areas Landscape feature rock work
Key Aspects
Large scale concrete construction Remoteness of site Ground conditions
2014/15 Other News
www.entracon.com.au Volume 2, Issue 7
New to the Entracon Fleet
Sean Durston-Ryan Project Engineer
Welcome
Entracon was proud to be part of the winning team, along with designers Spiire Australia, Moreland City Council and Melbourne Water. Moreland City Council identified the need for revitalisation of Charles Mutton Reserve and the opportuni-ty to future proof the site against drought. The final design included a stormwater diversion system and underground storage tank, distribution I infrastructure including rising main and pumps, 500kL above ground storage tanks, raingarden to treat sediments and nutrients, irrigation storage to provide volume for irrigation cycles and UV disinfection to treat pathogens. The expected water harvest of 20ML/year will reduce the sites reliance on potable water
by 70%, reduce stormwater runoff to nearby Merri Creek and provide a significantly increased amenity for users.
SIAV Awards 2014—Stormwater Victoria Merit Award - Excellence in Infrastructure Charles Mutton Stormwater Harvesting Scheme
Entracon is on the move ….. Entracon has outgrown our office space and early in the new year will be moving to our new address at 105 Fox Drive, Dandenong South Vic 3175. Please make sure to update your records.
Due to the ever increasing demand on our excavators, a second PC450LC-8 has been added to our fleet.
