Insert Council Logo Local Council of XXX Roadside Vegetation Management Plan - Level 1 Insert Date 1. INTRODUCTION AND BACKGROUND ............................................................... 4 1.1. Roadside Vegetation ..................................................................................... 4 1.2. Legal Protection of Native Vegetation on Roadsides ..................................... 5 1.3. Purpose of this Roadside Vegetation Management Plan ............................... 5 1.4. What This Roadside Vegetation Management Plan Contains ........................ 6 1.5. Description of the Local Council Region ........................................................ 6 1.6. Key Objectives of This Roadside Vegetation Management Plan ................... 6 1.7. How the Roadside Vegetation Management Plan was prepared ................... 7 1.8. How to Use This Roadside Vegetation Management Plan ............................. 7 1.9. Distribution of This Roadside Vegetation Management Plan ......................... 8 1.10. 2. Reporting and Review Requirements ......................................................... 8 MANAGEMENT ISSUES ...................................................................................... 9 2.1. LEVEL 1 MANAGEMENT PLAN ................................................................. 10 2.2. NEW ROADWORKS CLEARANCE ............................................................. 11 2.2.1. Consultation and Approval Procedures .................................................... 11 2.2.2. Guidelines ................................................................................................ 11 2.3. ROADSIDE MAINTENANCE ....................................................................... 14 2.3.1. Consultation and Approval Procedures .................................................... 14 2.3.2. Guidelines ................................................................................................ 14 2.4. PUBLIC SAFETY CLEARANCE .................................................................. 21 2.4.1. Consultation and Approval Procedures .................................................... 21 2.4.2. Guidelines ................................................................................................ 21 2.5. FENCELINE CLEARANCE.......................................................................... 24 2.5.1. Consultation And Approval Procedures.................................................... 24 2.5.2. Guidelines ................................................................................................ 25 2.6. PROPERTY ACCESS CLEARANCE .......................................................... 27 2.6.1. Consultation And Approval Procedures.................................................... 27 2.6.2. Guidelines ................................................................................................ 27 2.7. BUSHFIRE HAZARD REDUCTION............................................................. 29 2.7.1. Consultation And Approval Procedures.................................................... 29 2.7.2. Guidelines ................................................................................................ 30 3. REFERENCES ................................................................................................... 32 4. ABBREVIATIONS & DEFINITIONS .................................................................... 33 Abbreviations .......................................................................................................... 33 Definitions ............................................................................................................... 33 5. APPENDIX ......................................................................................................... 36 5.1. Summary of State Legislation Relating to Roadside Management ...................... 36 5.2. Simple Strut Arrangement for the Realignment of Fencelines Around Trees ...... 37 5.3. Individual Prescription Sheets – (Example) New Roadworks Clearance Activity 1: 38 1. INTRODUCTION AND BACKGROUND 1.1. Roadside Vegetation The roadside is defined as the strip of land between the road formation and the boundary of the road reserve which is usually also the boundary of the adjacent property. Roadside vegetation includes any vegetation growing on roadsides; this includes native vegetation of conservation value and vegetation dominated by introduced species. Indigenous or ‘native’ vegetation found on road reserves in South Australia, represents remnants of pre-European settlement vegetation. These important biological assets often have significant conservation value, as much of the native vegetation within the agricultural region of the state has been removed or highly disturbed. (See http://www.environment.sa.gov.au/dwlbc/assets/files/nv-faq-status-value-nv-saJUL10.pdf). In some areas roadsides support virtually the only remaining example of the original vegetation. There are three broad benefits of preserving native vegetation on roadsides. They are: Conservation Benefits Functional Benefits Social Benefits •Contains remnants of the original vegetation •Can support populations of rare or threatened native flora •Provides important habitat for native fauna, including reptiles and invertebrates •Can form an important habitat corridor linking blocks of native vegetation •May provide unique genetic reference areas for sourcing seed for revegetation and regeneration projects. •Helps to lower local water tables that may affect the road formation and pavement, •Acts as an effective low cost form of weed control by preventing the establishment of weeds, •Generally less fire-prone than introduced vegetation •Can provide valuable shelter for livestock and crops in adjacent agricultural land •Helps define curves, creating a safer driving environment •Reduces the velocity of water runoff, in turn reducing scour and erosion of batters and embankments •Provides amenity value to the general landscape •Contributes to driver alertness and road safety •Often contains flora contributing to the natural character and tourist appeal of a district •Remnants provide an historical reminder of the vegetation across the landscape prior to settlement Native bushland is an efficient, self-sustaining system, and after any ground disturbance, it may take a number of years to return to a stable state. Major disturbance can unbalance the system (e.g. through serious weed infestation) and cause long-term damage. In many instances inappropriate management activities can set up the next round of maintenance problems. Low-impact management of roadside vegetation, for example, is an integral part of efficient and effective maintenance of roads. The vegetation cannot be considered independently of the soil and water that support it, and these in turn cannot be considered in isolation of the pavement. Good roadside management practices can generate potential savings in Local Council’s road maintenance budget. 4 1.2. Legal Protection of Native Vegetation on Roadsides The clearance of native vegetation, including that along roadsides, is controlled under the Native Vegetation Act, 1991 and the Native Vegetation Regulations 2003. The regulations among other things set out circumstances in which native vegetation may be cleared without the need for specific consent from the Native Vegetation Council (NVC). In dealing with the clearance of native vegetation the regulations provide a mechanism to assist in the day to day management of a property. Regulation 5(1)(y) allows either (i) for clearance by a Local Council, or someone acting on behalf of the council, where the clearance complies with a Roadside Vegetation Management Plan (RVMP) that has been approved by the NVC, or (ii)- if no such plan has been prepared and approved, the regulation allows clearance where this complies with guidelines issued by the NVC – “Guidelines for the Management of Roadside Vegetation”, which is available from the NVC Secretariat. Other statutes relevant to the protection of native fauna and management of roadside vegetation include. Under the Local Government Act 1999 (Section 221), Local Councils have the authority to regulate the planting, removal of or interference with, any roadside vegetation. The National Parks and Wildlife Act 1972, prohibits the removal of native vegetation is prohibited without a permit from reserves, wilderness protection zones, Crown land, and public land or forest reserves in SA. The Commonwealth Environment Protection and Biodiversity Conservation Act 1999, provides the strongest protection for listed species of threatened indigenous plants and animals and important habitats. Any action having a significant effect on these requires assessment and Commonwealth approval. 1.3. Purpose of this Roadside Vegetation Management Plan This Roadside Vegetation Management Plan (RVMP) has been developed to provide a basis for managing roadside vegetation along all municipal controlled rural roads and main roads throughout the Local Council of xxx. It fulfils a legal requirement under the Native Vegetation Act 1991, which allows for clearance by a local council, or someone acting on behalf of the local council, where the clearance complies with a roadside management plan that has been approved by the Native Vegetation Council. While the safe movement of travelling public is a key requirement of roads, and local Councils have a responsibility to maintain adequate levels of safety and efficiency for drivers on Council owned roads, Local Council of xxx recognises that they also have a responsibility to retain and protect roadside vegetation wherever possible, as, road reserves have become increasingly important for conservation reasons due to the removal of vegetation from adjoining land. This Roadside Vegetation Management Plan: sets clear policies and guidelines for activities affecting roadsides provides a consistent, integrated approach to managing roadside vegetation; reduces potential Council liabilities; and provides a means for Local Council xxx to demonstrate due diligence in its responsibility to protect and maintain native vegetation on roadsides. 5 However, this Roadside Vegetation Management Plan is not: a means of avoiding liability if native vegetation clearance offences do occur an appropriate mechanism to obtain environmental approval for large road construction works an approval for all roadside vegetation clearing, or a stand-alone document in isolation to other management structures and controls over activities that occur in road reserves for which the Local Council of xxx has jurisdiction. 1.4. What This Roadside Vegetation Management Plan Contains This Roadside Vegetation Management Plan (RVMP) contains: a summary of activities that may affect roadside vegetation and guidelines for undertaking these activities procedures for environmental assessment and approval prior to implementation of roadworks The RVMP applies not only to road works (maintenance or minor construction) but also to other uses of roadsides such as service provision, pest animal and plant control, property access, and bushfire prevention. This RVMP provides a basis to promote forward planning and improved co-operation between all roadside users in the management of road reserves. These include Local Council CEO, Works Manager, Natural Resource Officer, Administration Manager, Planning Manager, operational staff, local emergency services, adjacent private property owners, the NVC, and importantly, the general public. 1.5. Description of the Local Council Region The Local Council of xxx covers an area of XXXX square kilometres and supports a population of XXXX people. The main townships include xxxx in the north, xxxx in the south, xxxx in the east and xxxx in the west (Figure 1). The district has a total of xxxx kilometres of used roads and xxx km of un-made road reserves. The majority of these (xxxx km) are local roads managed by the Local Council of xxx. The remaining xxxx kilometres are the responsibility of the Department for Transport, Energy and Infrastructure. The Local Council of xxx has a responsibility to ensure that roads not only provide for the safe movement of traffic, but also reflect community expectations for their wider use. 1.6. Key Objectives of This Roadside Vegetation Management Plan The Local Council of xxx key objectives for roadside vegetation are to: meet legal requirements for both the provision and maintenance of a safe road network and the protection of roadside vegetation maintain and enhance the species diversity, genetic diversity, vegetation associations and habitat types currently occurring within existing roadside vegetation 6 maintain and enhance the habitat and corridor value for indigenous flora and fauna minimise the adverse impacts of activities occurring within the roadside vegetation corridor clearly identify unauthorised activity in road reserves improve the awareness of roadside vegetation management issues for Local Council staff and contractors, the community and other authorities 1.7. How the Roadside Vegetation Management Plan was prepared This Plan was developed by the Local Council’s Natural Resource Officer in consultation with the Chief Executive Officer, Works Manager, Environmental Services Manager, Policy Manager and XXXXX, to ensure it complies with the Native Vegetation Act 1991, other relevant legislative requirements and Council’s plans and objectives. As part of the consultative process, issues and activities affecting roadside vegetation within the district have been identified and management actions established to ensure compatibility with existing council policies and objectives. This includes development of standard operating procedures for managing roadside activities where those activities are likely to affect roadside native vegetation. This RVMP was formally approved by the Native Vegetation Council on dd/mm/yyyy and endorsed by the Local Council of xxx on dd/mm/yyyy. 1.8. How to Use This Roadside Vegetation Management Plan This RVMP will be used as a working reference document within the Local Council of xxx Roadside Vegetation Policy Unit. The implementation of the RVMP is linked to Council’s Strategic and Development Plans and associated performance measures. The Local Council’s Natural Resource Officer will be responsible for administering its implementation. It will be kept on the Councils website, at the following address … This plan (Level 1) contains the minimum requirements of a RVMP that all Local Council’s should have in their RVMP. This includes a brief description of the roadside vegetation management issues, best practice guidelines and the consultation and approval procedures required to clear under the Regulations of the Native Vegetation Act 1991. Council’s can add or remove the relevant information where highlighted and tailor the content to suit the Council’s circumstances (for example modifying the vertical height clearance envelopes for heavy machinery transport routes beyond the standard clearance envelopes). Once the Council has justified the modifications from the standard clearance requirements under the Regulations of the Native Vegetation Act 1991, and the NVC has approved the modifications in the RVMP, Council may conduct clearance of native vegetation according to the Plan (eg. road maintenance, fenceline clearance, property access). It is noted that the Work Practices Guidelines will be amended from time to time and are therefore in loose-leaf form to enable distribution as required. Council staff and contractors will be trained to ensure they can interpret the plan and implement the roadwork practices required to minimise damaging impacts on roadside vegetation and improve the protection of remnant vegetation. 7 1.9. Distribution of This Roadside Vegetation Management Plan xx copies of this RVMP will be distributed to all relevant Council staff and to all elected members. Copies will also be distributed to the NVC Secretariat and the Department for Environment and Natural Resources (DENR) office at XXXX. A copy of the RVMP will be available at the Council offices for public viewing as well as on Council’s website. It is the responsibility of the Local Council’s Natural Resource Officer to ensure the plan is kept current and the contents are promoted to Council staff and the community. 1.10. Reporting and Review Requirements To ensure that compliance with the objectives of this RVMP have been met, this RVMP will be internally reviewed by the council every five years to provide an opportunity for council to determine if the RVMP needs updating or not. Once the internal review is completed, the RVMP will be forwarded to Native Vegetation Assessment Panel to look at any significant changes, and re-endorse the plan for another set time period. This will help ensure the RVMP stays current with respect to legislation and terminology, and also to improve usability and relevance. The template for reporting to the NVC is shown in Fact Sheet 1 of the Local Council of xxx Roadside Vegetation Management Plan Management Issue - Guidelines and Fact Sheets document. 8 2. MANAGEMENT ISSUES Native vegetation along roadsides needs careful management if it is to be conserved for future generations. Purely because of its linear nature, it is susceptible to gradual degradation through weed invasion. This degradation can be compounded if soils are disturbed or compacted by machinery or if low native shrubs or native grasses are unwittingly driven over or cleared. Not only can native plants be unnecessarily destroyed, but conditions can also be made unsuitable for natural regeneration, and management problems can also be created for adjoining landholders. This section outlines the management issues relevant to the Local Council of xxx that may impact on indigenous vegetation on roadsides and provides guidelines to reduce likely impacts, as well as any consultation or assessment procedures that are required. NOTE: Throughout this plan, reference is made to “minor clearance”. This term is used to refer to very minor and localised clearance, such as pruning of branches or removal of one or two tree saplings or shrubs which are known to be common in the area. If in doubt as to what constitutes minor clearance, consultation with the Native Vegetation and Biodiversity Management Unit prior to the work is recommended. It is just possible that the site may contain a small, visually insignificant plant species (eg. orchid or native grass) which is of particular conservation significance. It is also possible that the clearance (if resulting in slightly more clearance of native vegetation than the above definition describes) could be considered to fall under Section 29 (12) of the Native Vegetation Act 1991, and hence require no set aside area. Either way, consultation is recommended to avoid any unintentional illegal clearance occurring. 9 2.1. LEVEL 1 MANAGEMENT PLAN 10 2.2. NEW ROADWORKS CLEARANCE Objectives To ensure road construction activities meet road safety standards whilst ensuring minimum disturbance to roadside indigenous vegetation. Information The Local Council of xxx sometimes needs to undertake roadworks which involve clearance of mature or relatively undisturbed native vegetation. New roadworks, include: construction of new roads along previously undeveloped road reserves, widening or realignment of existing roads, new borrow-pits, new drains, new stockpile sites, or upgrading as a result of changes in land use patterns across a region. These activities could have significant environmental impact and it is important that the vegetation be assessed prior to the works. If significant vegetation is present it may be possible to modify the roadworks to reduce or avoid critical impact. Under the Native Vegetation Regulations 2003, Regulation 5(1)(d) permits clearance of native vegetation for new road works provided that it is located such that it avoids or minimises the impact on significant areas of native vegetation. In particular, new road works or widening activities should seek to avoid areas containing an intact stratum of native vegetation. These types of activities require specific NVC approval and require an SEB to offset the clearance 2.2.1. Consultation and Approval Procedures Clearance approval under Regulation 5(1)(d ) is required for new roadworks (ie. new road construction, widening, realignment,) which involve clearance of native vegetation. NOTE: This requirement does not apply to very minor and localised clearance, such as pruning of branches or removal of one or two tree saplings or shrubs which are common in the area. 2.2.2. Guidelines Road Design Local Council of xxx will consider the following design principles when planning new roadworks (prior to obtaining NVC approval): Avoid vegetation communities of high conservation significance. One wide roadside is preferable to two narrow roadsides. If widening is necessary where native vegetation is present on both sides, widening 11 on the narrow roadside is preferred. The value of roadside vegetation is greater where there is native vegetation adjacent (outside the road reserve). Drainage systems and batters will be designed to minimise sedimentation of water courses, minimise discharge into disease-susceptible plant communities, and control erosion. Road Construction Once approval has been obtained from the NVC, the Local Council of xxx will minimise the impact of construction on vegetation by abiding by the following guidelines: Clearly identify and mark with stakes or tape any significant or protected vegetation, habitat areas and sensitive areas prior to the commencement of works Always stay within the construction zone Keep machinery and stockpiles on previously cleared land limit soil disturbances on roadside limit vegetation removal to that approved by the NVC identify the exact location of proposed stockpiles, plant compounds, access roads and turning areas to avoid any incidental vegetation damage borrow pits must be located where native vegetation will not be disturbed materials for construction works to be taken from disease and weed free sites equipment should be cleared on site before moving on to other sites: this particularly applies where machinery is operating in weed-infested areas only use the appropriate type and minimum size of machinery for the job Chip light material from tree removal and use as mulch to spread local seed If there is no alternative to burning, do not burn close to desirable vegetation. Strip and stock-pile topsoil from areas of good vegetation. Re-use as soon as possible. Avoid “cleaning-up” vegetation after construction. Retain stumps, dead wood and understorey where possible. If unsure about any environmental controls, contact the site supervisor. Road Standards1 The following standards for road construction have been adopted by the Local Council of xxx, and are to be carried out subject to approval from the NVC under Regulation 5(1)(d). Sealed Roads 1 Note that a higher vertical clearance may be sought in this RVMP if well justified and based on usage of road by over-sized agricultural vehicles. This may be limited to certain routes. 12 Road Carriageway Widths - New Class A or Class B (sealed) roads are to have a maximum road carriageway width of xxxm, a shoulder width of up to xxxm and a verge width of up to xxxm on either side of the edge of the sealed carriageway (subject to Section 2.2 Roadside Maintenance and Section 2.3 Public Safety Clearance of this RVMP). Vertical Height Clearance The vertical height clearance envelope of new sealed roads is to be up to a maximum of 5m from the edge of the sealed carriageway. Unsealed Roads Road Carriageway Widths - New Class A or Class B (unsealed) roads are to have a maximum carriageway width of xxxm and a verge width of up to xxxm on either side of the carriageway (subject to Section 2. Public Safety Clearance of this RVMP) - New Class C roads are to have a maximum carriageway width of up to xxxm and a verge width of up to xxxm on either side of the carriageway (subject to Section 2.3 Public Safety Clearance of this RVMP) - New Class D and Class E roads are to have a maximum carriageway width of xxxm and a verge width of up to xxxm on either side of the carriageway (subject to Section 2.3 Public Safety Clearance of this RVMP) Vertical Height Clearance The vertical height clearance envelope of all new unsealed roads is to be up to a maximum of 5m from the edge of the grader line. 13 2.3. ROADSIDE MAINTENANCE Objectives a) To ensure a safe and efficient road system whilst ensuring minimum disturbance to roadside indigenous vegetation. b) To ensure best management practices for vegetation maintenance works on roadsides are understood and adhered to. Information Adequate vertical and lateral clearance of roadside vegetation is needed for the safe movement of vehicles, and additional clearance is usually needed at intersections, crests and the inside of curves to provide adequate sight distance to ensure that a driver is able to perceive all possible road hazards in sufficient time and react accordingly. The degree of clearance needed will vary according to the standard of the road, the type and amount of traffic and the characteristics of the vegetation. Along most of Councils roads, clearance to the necessary safety standard has already taken place, but regrowth may be encroaching back into the clearance space. This regrowth may be removed without clearance approval, provided that low impact methods are used (eg. slashing, rolling, chainsaws). These clearance areas are generally referred to as Clearance Envelopes. Clearance envelopes used in the Local Council of xxx, are found in the diagrams below. 2.3.1. Consultation and Approval Procedures a) Maintenance of existing roadside vegetation clearances (clearance envelopes) by low impact methods and vegetation clearance for sight distance at intersections, driveways and curves, according to Austroad Standards, can generally proceed without clearance approval. b) Clearance approval is needed where: - clearance exceeding previously established safety standards is proposed (eg. construction of new open drains; new stockpiles or work areas outside approved “clearance envelope”, or other maintenance requiring increased clearance; OR - regrowth has reached the stage where high-impact methods (eg. bulldozing) are proposed. 2.3.2. Guidelines Any clearance proposed here is not meant to imply or establish safety standards. Clearance envelopes are areas that are required to be clear of vegetation for the safe passage of legal height vehicles across the full width of the traffic lanes, and secondary 14 clearance envelopes are further areas required to be kept clear of vegetation for adequate visibility of other traffic, signs and other roadside furniture. Usually, clearance to the necessary safety standards has already taken place, and regrowth encroaching back into these clearance spaces can be cleared without approval from the NVC. As a general rule, regrowth vegetation less than 5 yrs old can be cleared in clearance envelopes without approval, clearance of vegetation between 5 and 10 years old requires consultation with the NVCS (and where a longer clearance cycle is deemed necessary, this is likely to be approved, and noted in the RVMP), and vegetation older than 10yrs would usually require assessment and NVC approval. If in doubt, check with the Council Natural Resource Officer, or contact the NVCS office for advice. Sealed Roads Vertical Height Clearance: A clearance envelope is to be maintained up to a vertical height of 5m from the edge of the sealed carriageway (Figure 1). Clearance beyond this height will require NVC approval. Unsealed Roads Vertical Height Clearance: A clearance envelope is to be maintained to a vertical height up to 5m from the edge of the grader line (Figure 1). Clearance beyond this height will require NVC approval. Figure 1: Maintenance of clearance envelope A secondary clearance envelope extending up to 500 mm around roadside furniture may also be sought (Figure 2). Additional vegetation control may be undertaken on the approach side of signs and delineation devices to ensure that the sign is clearly visible from a distance equivalent to the stopping sight distance for the speed environment of the road. 15 Figure 2: Clearance around roadside furniture All Roads The following codes of practice will be implemented by the Local Council with the delegated responsible officer being the (i.e.) Council Environmental Officer (supply contact details). If unsure about any environmental controls, contact the site supervisor. Minimise Weed and Disease Spread clean down machinery in appropriate areas before entering and when leaving work site program works to begin with clean machinery in high conservation areas and work toward degraded sites only use soil or fill from a weed or disease free site Turn-around Points on narrow roads of high or medium conservation value, identify machinery turnaround points where native vegetation will not be damaged locate stockpiles, turn-out or lay-down areas on existing cleared land Grading and Drain Cleaning Operations avoid damage to roots, bark and limbs avoid working inside the drip line of trees avoid working where root damage and soil compaction may occur remove drain spoil and dispose of appropriately care must be taken to ensure that the grader does not intrude beyond the existing carriageway width (grading a little further each time can have significant impact over a number of years) Herbicides only use herbicides where vegetation control by mechanical methods is inappropriate avoid over-spray by not spraying in windy conditions Vegetation Removal 16 avoid “cleaning up” vegetation and retain stumps, dead wood and understorey where possible carefully prune trees using low impact methods in accordance with recognised arboriculture standards avoid damaging undergrowth when removing trees dispose of waste materials at an appropriate site or depot or leave as habitat for wildlife Low shrubs, native grasses and groundcovers generally do not affect road safety and, where possible, will be retained in the clearance zones to help prevent weed invasion and erosion. Particular care to be taken at sites with Significant Roadside Marker signs. Machinery Use only use the appropriate type and minimum size of machinery for the job Erosion Control remove as little vegetation as possible and encourage the growth of native vegetation on batters maintain drainage systems minimise soil disturbance Main Clearance Envelopes The main clearance envelope allows for the passage of legal height vehicles (4.6 m) across the full width of the traffic lanes. To allow for regrowth between pruning and sagging of branches caused by wet or windy conditions, a minimum2 clearance height of 5.0 m will be maintained. If Council can justify a larger clearance envelope, then there is some flexibility, eg. in areas of regular use of oversized agricultural vehicles (up to legal height of 4.9m), and a case may be made for a vertical height of 5.5m (or more) to cater for these vehicles. Rural or non-built up areas Council will maintain a minimum clearance envelope that is 5.0 m high, extending the width of the road (usually taken as the edge of carriageway) as shown in the following Figure 3. On unsealed roads, every effort must be made to limit grading to the pre-existing width, and where possible this width should be documented for future maintenance works. 2 Reference to maintaining a minimum, does not suggest that an increased level of clearance can automatically occur. In some cases roads may have historically been maintained with a higher vertical clearance, and can continue to do. 17 Figure 3: Rural Clearance Envelope (Minimum) Urban or built up areas It is desirable to maintain a vertical clearance of 5.0m from kerb face to kerb face. Council will maintain a minimum clearance envelope that is 5.0 m high, extending over the width of the travel lanes that are available for the passage of all legal road vehicles as shown in Figure 4. Figure 4: Urban Clearance Envelope (Minimum) The clearance envelope is further modified on highway medians. A clear height of 2.1 m will be maintained at the kerb and extend 1.0m from the carriageway or to the nearest edge of the trunk, whichever is lesser (Figure 5). 18 Figure 5: Change to clearance envelope at medians Secondary Clearance Envelopes A secondary clearance envelope extending up to 500 mm around existing roadside furniture can occur (Figure 6). Additional vegetation control may be undertaken on the approach side of signs and delineation devices to ensure that the sign is clearly visible from a distance equivalent to the stopping sight distance for the speed environment of the road (Figure 6). At road intersections where corners are created, verges are to be maintained for safe sight distance according to Figure 6. Low growing native plant species within the road verge that will not impair sight distance or pose a significant risk to vehicle safety are to be retained and promoted. The presence of these species can help prevent weed invasion and soil erosion, maintain a level of biodiversity in the area and can reduce roadside management costs. Figure 6: Secondary Clearance Envelope around existing roadside furniture 19 Figure 7: Secondary Clearance Envelope Along Road Figure 8: Maintenance of verge areas at intersections (this includes road and rail intersections 20 2.4. PUBLIC SAFETY CLEARANCE Objectives To balance roadside protection of native vegetation and public safety. To address any issues of public safety over and above those currently addressed (see Roadside Maintenance section) in accordance with the NVC ‘Managing Native Vegetation - A Framework for the Application of Regulation 5(1)(lb), for Clearance Along Roads, Intersections and at Rail Crossings for Public Safety Purposes’. Information Maintenance of existing clearances for road safety, or the clearance of vegetation to maintain safe sight distance at intersections and the inside of curves can occur under Regulation 5(1)(y) (see section on Road maintenance), but any clearance greater than this needs approval either under 5(1)(lb) where clearance is necessary to protect public safety, or under 5(1)(d) for infrastructure clearance (new road construction, widening or re-alignment). Once any additional areas are authorised under Regulation 5(1)(lb), then these will be incorporated into the Maintenance section of this RVMP (either as an erratum, or added when the plan is next due for review). This section of the RVMP summarises the requirements for Council when considering new clearance for the purpose of increasing levels of road safety under Regulation 5(1)(lb) in accordance with the NVC ‘Managing Native Vegetation - A Framework for the Application of Regulation 5(1)(lb), for Clearance Along Roads, Intersections and at Rail Crossings for Public Safety Purposes’. However, contact should be made with the NVBM Unit for advice. 2.4.1. Consultation and Approval Procedures Clearance of roadside vegetation within specified distances from the edge of carriageway can generally proceed with clearance approval under Regulation 5(1(lb) Clearance beyond specified distances from the edge of carriageway may require clearance approval from the NVC under regulation 5(1)(d). 2.4.2. Guidelines All proposed clearance of roadside native vegetation under public safety Native Vegetation Regulation 5(1)(lb) must be undertaken in accordance with written approval from the NVC and must comply with the NVC’s “Managing Native Vegetation- Interim Framework for the Application of Regulation 5(1)(lb) for Clearance Along Roads, Intersections and at Rail Crossings for Public Safety Purposes”. Road Curves 21 For road curves, the amount of clearance will be determined on a case-by-case basis and, where practicable, only non-frangible plants impeding visibility will be removed using cut or cut and swab. Low growing species and ground covers should be retained. These clearance zones should be maintained by trimming, slashing and rolling that minimise soil disturbance. Avoid grading or bulldozing. Sight Triangles at Road Intersections and Rail Crossings - Category 1 Both frangible and non-frangible native vegetation (if need be) can be cleared for the establishment of safe sight lines at road intersections and rail crossings. Clearance must be consistent with clearance guidelines outlined in Austroad Guide to Road Design: Part 4: Intersections and Crossings-General 2009, and AS 1742.7:2007 Manual of uniform traffic control devices, Part 7: Railway Crossings. No SEB is required. Sealed Roads – Category 2 On sealed roads with a speed design of equal to or less than 80kms/hr, up to 2 metres of non-frangible native vegetation can be reduced, modified or removed from the edge of travelled way for the purpose of public safety. For sealed roads with a speed design greater than 80kms, up to 3 metres of nonfrangible native vegetation can be reduced, modified or removed from the edge of travelled way is applicable for the purpose of public safety (Table 1). Clearance of frangible vegetation in Category 2 situations must ahve clearance approval from the NVC. Table 1: Sealed roads - Category 2 zone clearance widths Speed limit (km/hr) Category 2 zone widths adjacent to the edge of travelled way ≤80 km 2m >80 km 3m Unsealed Roads – Category 2 On unsealed roads, up to 2 metres either side of the defined travelled way can be cleared of non-frangible native vegetation for the purpose for public safety. Clearance of frangible vegetation requires clearance approval from the NVC. The clearance level is capped at a total width including the travelled way itself of up to 12 metres. The road authority will need to demonstrate that it has considered the NAMO principles to avoid or minimise the impacts that any proposed actions may have on biodiversity or native vegetation. The road authority must show it has considered other safety improvement options as opposed to clearance. Clearance Beyond Category 1 and 2 Zones - Category 3 22 Category 3 is the native vegetation beyond the Category 1 and 2 zones. Clearance of non-frangible native vegetation in Category 3 area will require the road authority to justify clearance for public safety purposes. Any proposed clearance in this area will require written approval from an NVC authorised delegate acting on recommendations by NVAP. 23 2.5. FENCELINE CLEARANCE Objectives To enable landholders to gain appropriate access to fence lines for maintenance and construction purposes. To minimise the impact and disturbance of native vegetation by clearance for fence-line construction and maintenance. To encourage alternative approaches for erecting fences that minimises clearance of roadside native vegetation. Information A landholder who wishes to clear native vegetation on a road reserve, to enable construction or maintenance of a boundary fence, requires consent of the Local Council of xxx under the Local Government Act 1999 (Section 221), and may, depending on the amount of vegetation involved, also require formal NVC approval. 2.5.1. Consultation And Approval Procedures Clearance approval from the NVC is required for any vegetation clearance along fencelines which exceeds the standards below: Where the roadside vegetation consists largely of trees, only branches protruding through or overhanging the fence, or trees growing on the actual fence alignment, can be removed. Where shrubs or bushes are growing through the fenceline, those plants growing within one metre of the fence alignment can be removed. Consultation with the Native Vegetation and Biodiversity Management Unit should occur through the Local Council. If rare or threatened plant species (NPW Act Schedules or EPBC Act 1999) are present, Council staff to consult with the Native Vegetation and Biodiversity Management Unit. These standards take into account that the adjoining landholder can usually clear vegetation that impedes access to a fence, for up to five metres width on the private land abutting the road, where that clearance is necessary to provide vehicular or other access for fence construction or maintenance (see Regulation 5(1)(s) – NOTE that is does not provide an automatic right to clear a five-metre strip along a fence. If vegetation on an adjacent property is located within five metres but does not impede reasonable access to the fence, the regulation cannot be used to clear that vegetation). NOTE: Greater fenceline clearance may be justified in some districts which have high bushfire risk, or where there is fence maintenance problems associated with vigorously growing shrubs. If 24 necessary, Councils can seek variation of the standards to suit local conditions. 2.5.2. Guidelines Permission Removal of native vegetation on a road reserve for the purpose of construction or maintenance of a boundary fence requires consent of the Local Council of xxx. In granting any consent, Council will comply with the following standards: Where the roadside vegetation consists mainly of trees, only branches protruding through or overhanging the fence, or trees growing on the actual fence alignment, should be removed. Where shrubs or bushes are growing through the fence line, those plants growing within one (1) metre of the fence alignment can be removed. Clearance approval from the NVC is required for any native vegetation clearance along fencelines which exceeds the above standards. Any unauthorised clearance will be referred by Council staff to the Native Vegetation and Biodiversity Management Unit. Clearance methods Low impact methods of clearance (e.g. minimal ground disturbance, cutting cleanly rather than breaking branches) should only be used when clearing vegetation according to these standards. Cleared vegetation is to be removed from the site and not left on the road reserve, so as to minimise disturbance to the remaining vegetation (unless considered habitat features, eg. hollow logs, or if small amounts, material may be left on site if it is spread widely and not allowed to form a pile, and is not considered to increase the amount of combustible material significantly). Re-locating Fences Landholders wanting to replace boundary fences may consider re-locating the new fencing a few metres into their properties to minimise potential impacts on roadside vegetation. This can also potentially reduce construction and maintenance costs. The narrow strip between the old and the new fence can be maintained clear of any regrowth to minimise impacts on the new fence, and also act as a firebreak between the roadside and the property. An alternative to the removal of trees in line with the property boundary may include constructing a simple strut arrangement that allows a fence to deviate a short distance around a tree. Wires are not attached directly to the tree, thus minimising potential damage to the tree (Figure 3) 25 Figure 3: A simple strut arrangement that allows a fence to deviate a short distance around a tree. Wires are not attached directly to the tree, thus minimising potential damage to the tree. The same strut arrangement seen from the side. The strut holding the wires away from the tree is directly behind the trunk. The wires are in place, but cannot be seen due to the light at the time the photo was taken. 26 2.6. PROPERTY ACCESS CLEARANCE Objectives To minimise the loss of native vegetation through the construction of property access points To ensure clearance for safe sight distances are established and maintained in accordance with Austroad Standards3 Information From time to time clearance of roadside vegetation may be required to provide access or improve access to private properties (eg. new driveways). For rural areas, a primary producer may need new access to a paddock, possibly to cater for wide farm machinery. In other situations (e.g. semi-urban) it may be normal vehicular access to a residential allotment. In these situations, the safety of the access user needs to be the primary consideration. At the same time the conservation of native vegetation also needs to be considered. In addition to obligations under the Native Vegetation Act 1991, clearance for this purpose requires development approval from Local Councils and along arterial roads, Department Transport Energy and Infrastructure. 2.6.1. Consultation And Approval Procedures Clearance of roadside vegetation to provide access to adjoining land requires the consent of the Local Council of xxx, and along arterial roads, the Department Transport Energy and Infrastructure. In addition, approval is needed through the Native Vegetation and Biodiversity Management Unit for any proposed clearance of native vegetation for access which exceeds the standards in the guidelines section below. Consultation with the Native Vegetation and Biodiversity Management Unit should occur through the local council. If rare or threatened plant species (NPW Act Schedules or EPBC Act 1999) are present, Council staff to consult with the Native Vegetation and Biodiversity Management Unit. 2.6.2. Guidelines Permission Austroads Guide to Road Design: Part 4: Intersections and Crossings-General 2009 27 Removal of native vegetation on a road reserve to provide access to adjoining land requires consent of the Local Council of xxx. If there is more than one option which will provide safe access, the option which involves least disturbance of native vegetation, or vegetation of lower conservation significance should be selected. Where some clearance of native vegetation is unavoidable, this should not exceed the following standards: For normal vehicle access: five metres wide plus minimum clearance along the road reserve needed to provide adequate sight distance; For wider farm vehicles: ten metres wide plus minimum clearance along the road reserve needed to provide adequate sight distance. Clearance approval from the NVC is required for any native vegetation clearance along fencelines which exceeds the above standards. Any unauthorised clearance will be referred by Council staff to the Native Vegetation and Biodiversity Management Unit. Clearance methods Low impact methods of clearance (e.g. minimal ground disturbance, cutting cleanly rather than breaking branches) should only be used when clearing vegetation according to these standards. Cleared vegetation is to be removed from the site and not left on the road reserve, so as to minimise disturbance to the remaining vegetation (unless considered habitat features, eg. hollow logs, or if small amounts, material may be left on site if it is spread widely and not allowed to form a pile, and is not considered to increase the amount of combustible material significantly). Avoiding unnecessary clearance Care must be taken to avoid areas of native grassland and plant communities of conservation significance. 28 2.7. BUSHFIRE HAZARD REDUCTION Objectives To take reasonable steps to inhibit the outbreak of fire on roadsides and the spread of fire through roadsides To minimise the adverse effects of fire management on roadside native vegetation. Regularly update this plan to be consistent with the xxx Bushfire Management Plan prepared under the Fire and Emergency Services Act 2005 by the local bushfire management committee. Information Local Council of xxx is required to adhere to the Fire and Emergency Service Act 2005. This Act places the responsibility on Council to take reasonable steps to prevent or inhibit the outbreak and spread of fire on council owned land, including road sides. Local Council of xxx is also required to adhere to the Native Vegetation Act 1991. Achieving the goals of both of these Acts can be difficult and requires careful planning. In some vegetation associations in the area, the Environmental Protection Biodiversity and Conservation Act 1999 may also be applicable and so must also be considered. Guidelines in this roadside vegetation management plan should be updated regularly to reflect any changes in the Bushfire Management Plans covering this Local Council area. 2.7.1. Consultation And Approval Procedures Under the Native Vegetation Act 1991, the clearance of native vegetation to reduce the levels of combustible materials can occur if the works are undertaken in accordance with an approved Bushfire Management Plan or is authorised by the Chief Officer (or authorised delegate) of the SA CFS., ie. under Regulation 5A part (b)(ii) where the clearance (A) is required or authorised by, and undertaken in accordance with, a bushfire prevention plan; or (B) is undertaken in accordance with the written approval of the Chief Officer of SACFS. Note: Reference to bushfire prevention plan is deemed to be that referred to under the Fire and Emergency Service Act 2005 as a Bushfire Management Area Plan. Consultation with the CFS should normally occur through the CFS Regional Prevention Officer Approval is not required for the maintenance of previously approved existing fuel breaks. All fuel modification works should be described in the District Bushfire Management Plan 29 2.7.2. Guidelines All fire prevention works on roadsides should link in with the District Bushfire Risk Management Plan and subsequent Council BMP or other local management plans and objectives. Consult SA CFS to plan and evaluate fire prevention works that provide the best practices for the conservation and fire prevention on roadsides. Permission Removal of native vegetation on a road reserve to provide access to adjoining land requires consent of the Local Council of xxx. In granting any consent, Council will comply with Regulation 5A part (b)(ii) where the clearance o (A) is required or authorised by, and undertaken in accordance with, a bushfire prevention plan; or o (B) is undertaken in accordance with the written approval of the Chief Officer of SACFS. Clearance approval from the NVC is required for any native vegetation clearance along fencelines which exceeds that allowable under Regulation 5A of the Native Vegetation Act 1991. Any unauthorised clearance will be referred by Council staff to the Native Vegetation and Biodiversity Management Unit. Clearance methods Low impact methods of clearance (e.g. minimal ground disturbance, cutting cleanly rather than breaking branches, slashing, trimming, mowing, or rolling) should only be used when clearing vegetation to reduce potential weed invasion and erosion problems. Grazing and herbicide use should only be contemplated where no or minimal impact upon native vegetation is likely. Limit the use of herbicides to spraying: o around furniture o for selective control of particular weeds where it is the most appropriate means of control o to control growth of potentially serious weeds on firebreaks (subject tot eh approval of the SA CFS Regional Prevention Officer), or o when weather conditions will minimise the likelihood of spray drift affecting non-target plants. Only remove vegetation that is referred to in the approved Bushfire Management Plan (eg. strategic clearance, removal of fine fuel), and retain all other vegetation including dead timber. Take care to minimise damage to the remaining vegetation. Other considerations Any applications to revegetate roadsides must be assessed and approved by the 30 Council Fire Prevention Officer. Design weed slashing programs to begin with clean machinery in high conservation value areas and work towards the more degraded sites. This will assist in the prevention of further spread of weeds 31 3. REFERENCES ARRB Transport Research (2000) Unsealed Roads Manual: Guidelines to Good Practice. ARRB Transport Research (2001) Environmental Practices for Rural Sealed and Unsealed Roads. Australian Standards (2007). AS 4373 - Pruning of amenity trees. Australian Standards, Sydney, Australia. Austroads publications dealing with Road design: http://www.onlinepublications.austroads.com.au/script/ICSDocBrowse.asp? Code=99.AR.RD&StdType=Austroads Berwick M (1998). National Local Government Biodiversity Strategy. Australian Local Government Association in conjunction with Biological Diversity Advisory Council. DEH (2005). Dieback in Native Vegetation in the South Australian Murray-Darling Basin: a Guide to Symptoms and Causes. Department for Environment and Heritage, South Australia. Gannaway, D. (n.d.). New form of bridal creeper found in Australia [Brochure]. Natural Heritage Trust, Australia. Govt. of SA (2005). South Australia: Guidelines for state government agencies, firebreak and fire access tracks. Government of South Australia, Australia. Guimmarra, G (2000) Unsealed Roads Manual – Guidelines to Good Practice, ARRB Transport Research Ltd. Heard LMB & Channon B (Eds) (1997) A Guide to a Native Vegetation Survey (Agricultural Region) using the Biological Survey of SA Methodology. Section 1. Edition 1. Department of Housing & Urban Development - SA Local Government Association (1994). Managing Unsealed Roads in South Australia. NSW Roadside Environment Committee (1996) Managing Roadsides. Phytophthora Technical Group (2003) Phytophthora Management Guidelines Phytophthora Technical Group (2006), Phytophthora Management Guidelines. Government of South Australia, Australia. (Online, accessed 5th May 2008). URL: http://www.environment.sa.gov.au/biodiversity/pdfs/pc_management_guidelines.pdf Roadside Conservation Committee of Victoria (1995) Roadside Management and Planning: Background and Guidelines. Sheldon, S (1996) Managing the Environment – A practical guide for Local Government to Environmental Management Systems and ISO 14001, Commonwealth of Australia, Canberra. 32 Stokes AL, Heard LMB, Corruthers S & Reynolds T (1998) Guide to the Roadside Vegetation Survey Methodolgy in South Australia – Draft Working Document. SAR Unit, Planning SA and Environmental Unit, Transport SA. Transport SA Environmental Code of Practice for Road Maintenance. Transport SA (1997) Environmental Code of Practice for Construction: Road, Bridge and Marine Facilities. 4. ABBREVIATIONS & DEFINITIONS Abbreviations DENR Department of Environment and Natural Resources LGA Local Government Association NRM Natural Resources Management NVBMU Native Vegetation and Biodiversity Management Unit NVC Native Vegetation Council as established by the Native Vegetation Act, 1991. RVMP Roadside Vegetation Management Plan Definitions Clearance (from the Native Vegetation Act 1991) Clearance Envelope the killing, destruction or removal of native vegetation the severing of branches, limbs, stems or trunks of native vegetation the burning of native vegetation any other substantial damage to native vegetation, and includes the draining or flooding of land The area required to be clear of vegetation for the safe passage of legal height vehicles across the full width of the traffic lanes [Secondary clearance envelopes are further areas required to be kept clear of vegetation for adequate visibility of other traffic, signs and other roadside furniture]. Local Council Local Government body constituted under the Local Government Act 1999. 33 Droving or Movement of Stock Moving stock, usually cattle or sheep, from one place to another by driving them slowly on foot along roadways or stock routes. Grazing of Stock Using a particular area for grazing rather than for movement of livestock. Indigenous (or Native) Vegetation Local (naturally established) native vegetation species of the type occurring prior to European settlement in this district. Minor Clearance The pruning of native vegetation is acceptable provided that it is kept to a minimum and does not result in the death of the plant(s) involved Natural Regeneration New growth of indigenous native plants from seed or sucker growth. Native Vegetation (adapted from the Native Vegetation Act 1991). This definition does not represent the full legal wording of this term – see the Native Vegetation Act 1991 for the exact wording. Any plant or plants of a species indigenous to South Australia, including a plant or plants growing in or under waters of the sea, but does not include: (a) a plant or part of a plant that is dead unless the plant, or part of the plant, is of a class declared by regulation to be included in this definition, or (b) plants intentionally sown or planted by a person, except where the planting was undertaken in compliance with a condition imposed by the Native Vegetation Council (or the Native vegetation Authority under the 1985 vegetation clearance legislation), or in accordance with an order of the court under the Native Vegetation Act 1991(or the 1985 clearance legislation) In this context native vegetation does include dead trees of a species indigenous to South Australia if: a) the trunk circumference (measured at a point 300mm above the base of the tree) (i) in the case of a tree located on Kangaroo Island – 1 metre or more, or (ii) in any other case – 2 metres or more), and b) the tree provides or has the potential to provide, or is a part of a group of trees or other plants (whether alive or dead) that provides, or has the potential to provide, a habitat for animals of a listed threatened species under the Commonwealth Environment Protection and Biodiversity Conservation Act 1999. Remnant Vegetation Surviving indigenous vegetation Road Road as defined under the Road transport Act 1961; i.e. road = reserve 34 Roadway (0r Carriageway) That portion of the road devoted particularly to the use of vehicles, inclusive of shoulders and auxiliary lanes. Road Reserve The total strip of land reserved for transportation purposes from fence line to fence line or boundary to boundary if unfenced. The road reserve includes the roadside. Roadside Vegetation Any vegetation growing on roadsides. This includes native vegetation of conservation value and vegetation dominated by introduced species. Road Shoulder The area on a sealed road between the roadway (carriageway) and the road verge Road Verge That portion of the formation not covered by the carriageway or the footpath. Significant Attributed to features of special value including vegetation, landscapes and cultural heritage. Significant Environmental Benefit The Native Vegetation Act 1991 includes provisions requiring the clearance of native vegetation to be offset by an environmental gain, referred to by the legislation as a ‘Significant Environmental Benefit' (SEB). The rationale for an SEB offset recognises that clearance of native vegetation will result in the loss (even temporary) of habitat, biodiversity and/or other environmental values, in a landscape that has already been significantly modified by human settlement. The SEB provides a mechanism to minimise that loss by managing, restoring or re-establishing areas of native vegetation that result in a better outcome for the environment. Table Drain The side drain of a road adjacent to the shoulder, having its invert lower than the pavement base and being part of the formation. Threatened Species Indigenous flora and fauna under threat of extinction(usually categorised to level of threat as: rare, threatened, vulnerable or endangered) Traffic Lane A portion of the carriageway allocated for the use of a single line of vehicles. Travelled Way That portion of a carriageway ordinarily assigned to moving traffic, and exclusive of shoulders and parking lanes. Unused Road Reserve A road that has been gazetted under the Crown Lands 35 Act 1929 where it is not used for public traffic. Vegetation Any living or dead plant material (trees, shrubs, groundcovers including herbs; grasses; reeds, rushes and other aquatic species. Weeds A plant species not indigenous to the area and which invades endemic vegetation 5. APPENDIX 5.1. Summary of State Legislation Relating to Roadside Management The following (Commonwealth) Parliament Acts and Government policies are relevant to road maintenance activities for the protection and management of roadside vegetation. Electronic copies of State and Federal legislation can be found at http://www.austlii.edu.au/ Aboriginal Heritage Act, 1988 Agricultural and Veterinary Products (Control of Use) Act, 2002 Controlled Substances Act, 1984 Crown Lands Act, 1929 Dangerous Substances Act, 1979 Environment Protection Act, 1993 Environment Protection and Biodiversity Conservation Act, 1999 Fire and Emergency Services Act, 2005 Heritage Places Act, 1993 National Parks and Wildlife Act, 1972 Native Vegetation Act, 1991 Natural Resources Management Act, 2004 36 5.2. Simple Strut Arrangement for the Realignment of Fencelines Around Trees Figure 3: A simple strut arrangement that allows a fence to deviate a short distance around a tree. Wires are not attached directly to the tree, thus minimising potential damage to the tree. The same strut arrangement seen from the side. The strut holding the wires away from the tree is directly behind the trunk. The wires are in place, but cannot be seen due to the light at the time the photo was taken. 37 5.3. Individual Prescription Sheets – (Example) New Roadworks Clearance Activity 1: Location: Widen and seal Pages Flat Road between Yacka Road and Wakefield Road 2kms south of Yumba township Insert Google Map of identified area of proposed works for that section of roadway Length: 200m Vegetation Description: Category B road, Category A vegetation in excellent condition. Contains a dense forest community of xxxx, with a complex midstorey of xxxx and grassy understory understorey of xxxx. The Local Council of xxx is proposing to clear 62 native roadside trees to widen and seal the road to accommodate heavy transport involved in the harvest of blue gum plantations. Management Issue: The main management issue is clearing of native trees of high conservation significance for the proposed widening of the roadway. Management Recommendations: Consider the purchase of cleared land alongside the road reserve, and the use of that cleared land for the roadworks. Consider the modification of designs to reduce vegetation removal and to provide optimum protection for high conservation value roadside remnants (e.g. different alignments, pavement and shoulder widths). Maintenance Requirements: No slashing between September and late January. No stockpiling on road verge. No parking of machinery or plant on road verge. No windrows on road verge from roadworks. 38