9EDBA 2 waterways improvement prog

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ATTACHMENT 2
CL……. SERVICES
WATERWAYS IMPROVEMENT PROGRAM FOR 2003- 2004
Construction Works
Drainage Construction Program (Project No. 5563)
Fulton Avenue Drainage Improvement (subject to available funds after full scoping of
other sites)
Fulton Avenue acts as a major overland flow path during major storm event. There is
always a major constriction to existing drainage outlets downstream of Fulton Street
crossing due to the presence of the infested weeds, introduced vegetation and silting
at the bed of the channel. There is a need to remove blockages through the overland
flow areas in order to facilitate improved drainage for the area.
29 Dorothy Street, Chester Hill
There is currently an overland flow entering the driveway of the property and
essentially goes down to the property. This works would look into the managing the
stormwater runoff through the street and prevent the runoff to enter the property.
346 – 362 Pennant Hills Road, Carlingford
There is overland flow from the adjoining upstream park that enters the properties
and inundates the whole yard along the internal road. Apparently a drainage line
needs to run in order to collect runoff and eventually discharges downstream along
Pennant Hill Road drainage system without adversely affecting the drainage in the
area.
Don Stuart Park Grass Swale
This work would address the flooding and erosion issues in the vicinity of the park. A
grass swale would be utilised to convey runoff and also treat the stormwater runoff
especially in removing fine sediment and attached nutrients.
14 Chudleigh Street, Rydalmere
Storm water runoff enters the downhill property by overtopping footpath. This work
would provide measures to facilitate the inflow in to the drainage system and thereby
preventing the runoff to enter in to the property.
Buckleys Road – Stage 2
There has been a street drainage problem due to the existence of low point. Council
carried out drainage mitigation works along the street as a first stage. The second
stage of the remaining works would be undertaken as design, which would be
finalised during 2003/2004 whilst construction works would be expected to complete
during 2004/2005.
Bogalara Creek Underground Drainage
The upper part of the Bogalara Creek was subjected to drainage problems through
numerous properties. Accordingly, UPRCT initiated an investigation to recommend
concept drainage improvement work in the vicinity. This design works would finalise
the detail works for the construction of drainage upgrades for implementation along
Nulang Street at the downstream end.
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ATTACHMENT 2
CL……. SERVICES
Flood Mitigation Program (Project No. 3051)
McCoy Park Basin Wall Construction
Currently, McCoy Park basin wall is not adequate to cope with overflow during flow
more than 1 in 100 year ARI event. Dam Safety Committee requires the basin wall to
manage fail-safe situation during Probable Maximum Flood (PMF) event. It is
imperative for Council that the basin wall needs to be reinforced to such an extent to
be able to satisfy DSC requirement.
2003/4 budget will allow for the construction of Stage I works involving the
construction of a cut-off wall. This will require additional funds in 2004/5 to complete
the works.
Briens Road Culvert Construction
Briens Road high level flood way culvert would be implemented as part of
recommendation from North Wentworthville Floodplain Risk Management Plan. The
culvert would divert high flow from Coopers Creek to downstream Toongabbie
confluence area. This will reduce potential of prolonged flooding in the area provides
an escape route of floodwater.
2003/4 budget will allow for the commencement of construction. This will require
additional funds in 2004/5 to complete the works. Commencement will be
dependent on receiving State government Grant funds as well as agreement with
affected property owners.
Edison Parade/Lister Street, Winston Hills
A flood protection levee was constructed in the area as a part of the flood mitigation
scheme along Toongabbie Creek. There is a localised low points through Edison
Parade. The current drainage system is not sufficient to manage the local drainage
generated from inside the levee area. In addition the local drainage is exacerbated
during major storm by rising flood water level from Toongabbie Creek. An alternative
drainage system would be investigated to relieve drainage congestion from the
vicinity.
On line Detention Basin, Guildford Park
There has been flooding problems downstream of Guildford Park due to the historical
development in the vicinity. The investigation of basin option within the park would
explore the benefit of potential attenuation of flow in order to reduce the current level
of flooding further downstream.
Pendle Hill – Stage 3C
There has been an ongoing construction program over the last 8 years to complete
the Pendle Hill Creek Floodway which aims to alleviate flooding to adjacent
properties. This detailed design work is for the final stage (3c) and is joining the
missing link between upstream and downstream works.
Council has been successful in receiving State government funding to develop the
concept designs therefore it is expected that future funds will be made available.
It is expected construction will be in subsequent years.
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ATTACHMENT 2
CL……. SERVICES
Waterways Maintenance/Restoration Program (Project No. 3089)
Quarry Branch Catchment – Cnr Moxhams/Whitehaven
- Sediment Basin and Channel Construction.
Parramatta River/Hunts Creek Catchment – Rangihou Street, Parramatta
- Scouring above frog pond
Toongabbie Creek Catchment – Tucks Road
- Design pollution control ponds
- Bank protection and stabilisation
Duck River Catchment
- Granville Showground – Reshape creek profile and revegetate
- Excelsior Street, Guildford – Detailed design for Duck Creek corridor
Ponds Creek Catchment
- Holland Place – trial bank stabilisation/replant riparian zone
- Rear Swan Street – Broken pipe and deep scour
Vineyard Creek Catchment
- Wylde Street Quarry – Design drop structure at SW outlet/Mural/Fence/Signage
- 29 York Street – Design drop structure and channelling
- Works from Masterplan – To be finalised July/August
Terry’s Creek Catchment
- Mobbs and Valley Road, Eastwood – Construct bank protection works
- Water Quality Multiprobe – Monitoring program.
Litter Reduction Program
- Duck River/Duck Creek
- Vineyard Creek
- Ponds Creek
- Toongabbie Creek/Quarry Branch Creek
- Parramatta River
- Sediment Removal
- Stage 2 Mona Street – Willow removal infrastructure protection
Back up Works Subject to Available Funding
- Model Farms Road (opp 34-36 Yarrabee) – Scour protection
- 66 Hammers Road – Design erosion protection works
- Namur Street – Scour protection
- Rapanea – Brand Street (opp Fullarton) – Scour and channelling
- Moffats Drive – Scour and channelling
- Beside 17 Robert Street – Sediment basin and channel
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ATTACHMENT 2
CL……. SERVICES
Water Quality Improvement Program (Project No. 5604)
Pollution Management Capital Works (WSUD)
This work would follow the suit of the adopting a range of best planning practices and
best management practices to achieve the outcomes of management of water
balance, water quality and water conveyance. The design would be incorporated
within the council owned capital project identified for 2003/4 such as road
construction or open space upgrades, whereby there is a potential to treat
stormwater runoff to protect downstream waterways.
3 Pollution Control Devices (PCD’s) from Commercial/Industrial Stormwater Asset
Plan (C&I SAP)
Pollution Control Devices (PCDs) would be implemented within the various parts of
the LGA as a part of recommendation derived from C&I SAP report prepared for
Council. This report is currently being completed. The report identifies and
prioritises the pollution hotspots throughout the local government area.
Ponds Creek Sediment Basin
The sediment basin would primarily trap sediments from the upstream catchment
area. It would assist in preventing sediment being deposited further downstream and
improving the habitat of the Subiaco Creek environments.
Granville Car Park Pollution Management
The Council car park adjacent Granville Station has been identifies as a likely source
of pollution such as oils, sediment and metals. In order to demonstrate Council is
leading by example it is proposed that a pollution control device be constructed to
collect and treat runoff from the car park before it enters the drainage system and
ultimately Duck River.
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