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. D:\106733884.doc 1 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. D:\106733884.doc 2 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 D:\106733884.doc 3 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. D:\106733884.doc 4