Gradual rehabilitation of strategic parts of the site will take place simultaneously with the excavation of sand and clay (see appendix 6). The final rehabilitation of the site must be carried out during two (2) years after the 10-year excavation period, including revegetation and redevelopment of the land to pre-excavation levels (see Appendix 7). There are seven (7) homes on surrounding parcels located within 500 meters of the proposed extraction areas at the relevant location.
No objections to the proposal were received from any of the parcels containing dwellings within 500m of the site. The Walyunga Road to the east of the area provides access to two (2) rural-residential areas and the regional reserve of the Walyunga National Park. The application referred to the MRWA as the Great Northern Highway which adjoins the western boundary of the site is a Primary Regional Road Reserve.
City staff are satisfied that the proposed location of the intersection on Walyunga Road will not create an unacceptable road safety risk. Development may not commence on the site until a digging permit has been issued to the municipality's satisfaction. The Walyunga Road crossover shall be constructed of asphalt and drained in accordance with the approved design drawings and specifications to the satisfaction of the City.
Soil must be installed and maintained on the site in accordance with the approved visual management plan (March 14, 2019) and updated noise management plan to the municipality's satisfaction.
The application has been referred to the Department of Sustainability,
On 21 November 2018, the application was postponed by the city council until a future regular council meeting.
Matters raised in the deputation at the agenda forum have been addressed
On 29 January 2018 Site Environmental and Remediation Services (SERS) on behalf of Brikmakers (the client) submitted a development application to the City of Swan to permit the extraction of sand and clay from lots 5 and 6 (1728) Great Northern Highway, Bullsbrook (the site) . Further information on the outcome of this referral will be provided to the council as it is received. A decision on whether the proposal is a controlled act under the EPBC Act is expected in early April.
Concerns have been raised by the Council regarding trolley operations with potential detrimental impact on tourism within the city. Saturdays may be designated by the City of Swan in connection with important events, such as the descent of the Avon. This condition will aim to reduce the impacts of trolleybus operations on tourism and community events within the immediate area.
Regarding the impacts of sand and clay carts, it is important to understand the local context. The same owners and operators are involved in the existing extractions north of Walyunga Road. Therefore, the same amount of clay and therefore trucks is likely to come from this new proposal and the existing one.
A similar situation exists for sand, with existing sand extraction operations using the Walyunga Road and the total daily number of sand trucks on the road unlikely to fluctuate significantly. I believe the attached reports and supporting information above adequately address the state administrative court's requests to date and the proposal will be considered again at the April 10 council meeting.
VISUAL MANAGEMENT PLAN
VISUAL MANAGEMENT PLAN FOR LOTS 5 & 6 (NO 1728) GREAT NORTHERN HIGHWAY, BULLSBROOK
- Rationale
- Objective
- Existing Environment
- Vegetation Planting
- View 2
- Stage 3
The visual amenity issues are related to the use of the Site, located at lots 5 & 6 Great Northern Highway Bullsbrook (hereinafter referred to as 'the Site'), for the extraction of basic resources including sand and clay. The extraction wells are protected by 4m and 6m high dams, on which a number of controls are discussed in this Visual Management Plan. This Visual Management Plan has been developed with the aim of reducing the visual impact of the proposed development by addressing the visual perception concerns of neighboring landowners and users of Great Northern Highway and Walyunga Road.
To the north of the site, an industrial area functions as a landfill, sand extraction and recycling facility. To the east of the site is a rural block with a number of shelters, this lot has been identified by the City of Swan as being of greatest concern in terms of loss of visual amenity due to the works. The development will be varied to reduce and better define the visual impact of the activities.
Bunds will be created in similar design to those on similar sites, an image is included as Plate 1 below for reference. It is proposed (as part of the 2018 Development Application) that after the formation of the tufts, fast-growing native flora, mainly acacia species, will be planted to stabilize the top of the tufts. This should be done at least twice a day at each planting site using a random point sampling method; and x Spacing shall be altered as necessary to ensure proper stocking is achieved.
The Great Northern Highway site (Plate 8 and Plate 9) is included in Plates 3 to 9 below.
Darling Downs- Bullsbrook- Site Plan Phase 2 , Clay and Sand
Darling Downs- Bullsbrook- Planting Guide Example on Eastern Boundary
WATER MANAGEMENT PLAN
NORTHERN HIGHWAY, BULLSBROOK
Site Soils
The Pinjarra area consists of alluvial deposits between the Bassendean Dunes zone and the Darling Scarp, colluvial and shelf deposits bordering the Darling Scarp. Soils of the Pinjarra Zone are often described as clayey to sandy alluvial soils with wet areas. Soils in the project area are part of the Forrestfield System (Map Unit 213Fo) (DPIRD, 2017).
The Forrestfield System is described as the undulating foothills of the Darling and Whater Scarps. The soils of the project area are described as duplex, sandy gravel, deep pale sand and duplex deep gray sand. Soils in the project area can also be described as semi-humid to wet, sandy and deep gray or pale sand.
The landforms of the Bullsbrook area are described as a coastal plain with marshes and low slopes <10% gradient. Clearing, livestock and cultivation can affect the watercourse by introducing nutrients and sediments.
Proposed Surface Water Management
The road was designed to minimize areas that contribute "dirty" or silty water to the system. It has been proposed to install and design settling tanks to retain heavy rainfall that will drain water into the sandy soil. Water traveling through the sump system will move 600m towards the western boundary of the site, passing through two existing sumps (approximately 200 m3 in total volume) and a final dam (approximately 700 m3) before leaving the site boundary (Figure 2) .
The shafts will be inspected at the end of each winter period and after heavy rains to ensure they are in good condition. Other activities and construction that do not include those associated with the access road (and associated stormwater controls) will be outside the 50-foot watercourse buffer, so the risk of silting in the watercourse will be reduced.
Conclusion
Darling Downs- Bullsbrook- Drainage line crossing
Darling Downs- Bullsbrook- Drainage line crossing Overall Site
