East Derwent Upgrade

Development Application Report

August 2020 Table of Contents INTRODUCTION ...... 4 BACKGROUND ...... 4 STRATEGIC RATIONALE AND PROJECT OBJECTIVES ...... 5 OPTIONS ANALYSIS ...... 5 SITE DESCRIPTION ...... 6

LOCATION ...... 6 SITE ...... 6 SURROUNDS ...... 7 TITLES ...... 8 EXISTING ROAD AND ROADSIDE ENVIRONMENT ...... 10 PROPOSAL ...... 12

DESIGN ...... 14 BRIDGE STRUCTURES...... 19 PUBLIC TRANSPORT ...... 20 PEDESTRIANS AND CYCLISTS ...... 20 LOCAL ROADS AND PRIVATE ACCESSES ...... 21 STORMWATER ...... 21 SERVICE RELOCATIONS ...... 22 LANDSCAPING ...... 23 LIGHTING ...... 23 LAND ACQUISITION...... 23 GEOLOGY ...... 23 FLORA & FAUNA ...... 24 LAND CAPABILITY ...... 24 NATURAL HAZARDS ...... 24 HISTORIC HERITAGE ...... 24 ABORIGINAL HERITAGE ...... 24 NOISE ...... 24 CONSTRUCTION ...... 25 STAKEHOLDER ENGAGEMENT ...... 26 SITE PHOTOGRAPHS ...... 27 PLANNING SCHEME ...... 29

ASSESSMENT OF AN APPLICATION FOR USE OR DEVELOPMENT ...... 29 PLANNING SCHEME OBJECTIVES...... 30 USE CATEGORISATION ...... 30 PART C ZONES ...... 30 PART D CODES ...... 43 PART F SPECIFIC AREA PLANS ...... 70 TASMANIAN HERITAGE REGISTER ...... 71 STATE POLICIES ...... 71 CONCLUSION...... 73 Introduction

This report supports a development application by the Department of State Growth (State Growth) to the Clarence City Council (Council) for the Upgrade. The purpose of this highway upgrade is to improve the capacity and safety along the East Derwent Highway between Golf Links Road and Sugarloaf Road (a stretch of approximately 1.5 kilometres) by duplicating the existing single carriageway to provide a total of four lanes (two each way), and upgrading the Geilston Bay Road/Clinton Road to include the installation of traffic signals. The project will:

· make the highway wider to have four lanes of traffic – two lanes in each direction · build a new concrete raised central median and safety barrier to reduce the risk of crashes · install new traffic lights at the upgraded intersection at Clinton Road and Geilston Bay Road · build safer access off the highway to Araluen Street, Lindisfarne North Primary School and Geilston Bay Recreation Area · add an off-road shared path and on-road cycling lanes, and · improve the left-turn pocket at the Sugarloaf Road intersection.

Section 6 of this report provides a detailed assessment of the proposal.

The proposed upgrade requires development approval under the Clarence Interim Planning Scheme 2015 (the Scheme). Section 9 of this report provides a detailed assessment against the relevant provisions of the Scheme.

This report is supported by the following appendices:

· Appendix A: Council’s Application form · Appendix B: Certificates of Title · Appendix C: Drawings · Appendix D: Department of State Growth - Crown landowner consent · Appendix E: Department of Education - Crown landowner consent · Appendix F: Clarence Council - Council landowner consent · Appendix G: Natural Values Assessment (Jacobs, August 2020) · Appendix H: Noise Assessment (Jacobs, July 2020) · Appendix I: Ground Conditions Assessment (Jacobs, August 2019) · Appendix J: Hydraulics Impact Assessment (Jacobs, August 2020) · Appendix K: Traffic Assessment (Jacobs, August 2020) Background

The East Derwent Upgrade from Golf Links Road to Sugarloaf Road is a component of the Tasmanian Government’s $117 million Southern Roads Package commitment in 2018. The objective of the Project is to improve traffic flow and address safety concerns in this section of the corridor. This will be achieved through duplication of the existing highway to provide two lanes in each direction, as well as intersection upgrades.

The East Derwent Highway is classified as a “Category 3 Road” under the Tasmanian State Road Hierarchy and is a key link in Greater ’s transport network between the at Montagu Bay and the Midland Highway at Bridgewater, on Hobart’s eastern shore. The section of highway between the Tasman Highway and Grasstree Hill Road carries a diverse mix of traffic including commercial vehicles, commuters, tourists and is predominantly dual carriageway in this section, except for the project area which is a sole single carriageway section in Geilston Bay between Golf Links Road and Sugarloaf Road. Traffic volumes throughout this section of the highway are relatively high, with a recent traffic survey undertaken by the Department of State Growth in 2018 indicating that the combined, two way Annual Average Daily Traffic (AADT) 230m north of Golf Link Road was 17968 veh/day, with 6.7% of the traffic stream compromising of heavy vehicles. It is anticipated that the percentage of heavy vehicles will continue to increase based on the 1.5% increase observed in the 3 years between the 2015 and 2018 counts. Strategic Rationale and Project Objectives

The Tasmanian Government has committed to upgrading the section of the East Derwent Highway between Golf Links Road and Sugarloaf Road to make it safer and improve traffic flow.

The objectives of the project are to:

· Increase the road capacity

· Improve traffic flow, and

· Address safety concerns in this section of the corridor

The key design features of the project include:

· Duplication of the existing single carriageway to provide four through lanes (two lanes in each direction)

· Installation of new traffic signals at the Dumbarton Drive / Clinton Road intersection

· A new raised central median and safety barriers to reduce ‘head on’ crash types

· Safer access off the highway to Araluen Street, Lindisfarne North Primary School and Geilston Bay Recreation Area

· The provision of an off-road shared path and on-road cycling lanes to promote active transport, and

· Increased turning capacity at key intersections including School Access Road, Golf Links Road and Sugarloaf Road

Options Analysis

An Options Analysis for the project was previously completed in 2018 and included initial engagement with key stakeholders, Council and Department of Education (DoE) to assist selection of a preferred option to develop to a Concept Design level. The analysis considered a number of improvements additional to duplication of the highway itself, including four different options for the location of a new signalised intersection at Clinton Road / Geilston Bay Road and possible new access road routes to Lindisfarne North Primary School and the Geilston Bay Recreation Area. At the time of finalising the Concept Design, it was noted that Council would soon be commencing a masterplan of the Geilston Bay Recreation Area, and that the design should take this into consideration as much as possible.

The options considered during the 2018 Concept Design phase of the project were revisited with all key stakeholders on a number of occasions through face to face meetings and informal correspondence under the scope of the current upgrade project, to ensure that the most suitable option was developed further for public consultation, and to a Detailed Design level. Council’s Geilston Bay Recreation Area masterplan was released for tender in August 2019, around the time of initial engagement activities with Council and DoE about the highway upgrade. During these initial engagement activities, it was noted that the highway upgrade and associated access roads should minimise impacts to land in the recreation area as much as possible to facilitate their future masterplan. Representatives from DoE, whilst supportive of the project and improved school access outcomes, also noted that land impacts around the school should be minimised as much as possible, to facilitate future expansion of the school.

Subsequently, adjustments to the locations of the new access roads have been updated since the 2018 design, to ensure land impacts are minimal. Where feasibly possible, the width of the highway cross section has been minimised and new access roads associated with the school and recreation area have been shifted as close as possible to the new highway, whilst not compromising the project’s safety outcomes. Site Description

Location

The project site is in Geilston Bay, generally located on the East Derwent Highway between Golf Links Road in the south and Sugarloaf Road in the north.

The East Derwent Highway ( B32) is an 18km long strategic arterial road, paralleling the eastern banks of Derwent River in Hobart and predominantly carries commuter traffic. The project is impacting approximately 1.5km of the Highway. Figure 5-1 illustrates the project footprint as black hatch.

Figure 5-1: Overall project footprint

Site

The site is located approximately 5.5 kilometres north-east from Hobart CBD. The ‘site’, i.e. the footprint of land impacted by the proposed physical works, is a long and linear in shape and generally matching the Highway for 1.5 kilometres.

The site comprises the following sections: · East Derwent Highway: the majority of proposed works are within the existing Highway corridor. The Highway is currently a mix of single and dual lanes.

· Lindisfarne North Primary School: The School is located in the south-west portion of the project site. The actual School building and carpark are not within the footprint, only the accessways off Derwent Avenue and the Highway and northern part of the School’s grounds.

· Geilston Bay Recreation Area: The Recreation Area comprises of football ovals, tennis courts, a BMX track and a skate park. Only a small section of the Recreation Area is impacted by the proposed works, predominantly for the creation of the new section of Dumbarton Drive.

· Dumbarton Drive and Geilston Bay Road: The section of Geilston Bay Road between the Highway and Dumbarton Drive is proposed to be altered to make it into a cul-de-sac. Dumbarton Drive is to be extended.

· Clinton Road: The access point of Clinton Road to the Highway is proposed to realigned to the south.

Surrounds

The site is bordered by a mix of land uses:

Residential

· The Highway is abutted by residentially zoned land on both sides, other than in the south-west section where the School and Recreation Area is located. · The residential lots abutting the south-east section of the site are constructed in fairly close proximity to the Highway. The separation between the Highway and residential land is greater in the northern section, as the Highway’s road reserve is wider and there is a section of Open Space zoned land on the western edge of Highway. · The residential area to the east of the Highway is broken up by Faggs Creek Gully. · The residential area to the west of the Highway is a mix of existing and proposed dwellings – the north-west section has been recently subdivided and not yet constructed.

Education

Lindisfarne North Primary School abuts the south-west portion of the Highway site. The School site is a large parcel of land, consisting of the School buildings located close to the intersection of the Highway and Derwent Avenue and sporting grounds and play areas in the remainder to the north.

Open space/recreation

· Geilston Bay Recreation Area is located to the west of the Highway, generally to the north of the School and south of Geilston Bay Road. The area consists of AFL/Cricket ovals, tennis courts, bike/skate parks and a car parks.

· Faggs Creek Gully generally runs east-west through the centre of the site. It contains the Creek and adjoining walking track.

Commercial

The Highway and surrounding streets contain a small number of small businesses:

· Immediately to the south-west of the intersection of the Highway and Derwent Avenue is a Fish Shop and Butcher. · At the corner of the Highway and Araluen Street is a Mechanic, Restaurant, Hair Studio.

Titles

Table 5-1 lists the individual pieces of land impacted by the project footprint.

Table 5-1 : Titles impacted by the project footprint

Property Title Property Address Authority Extent of works ID Reference Works in Highway 481 EAST DERWENT corridor and upgrade HWY GEILSTON BAY 7519075 113442/8 Acquired Road intersection to TAS 7015 Sugarloaf Road. 481 EAST DERWENT Works in Highway HWY GEILSTON BAY 7519075 113442/7 Acquired Road corridor. TAS 7015 *NO ADDRESS (LARGE Works in Highway PARCEL OF LAND corridor. MAKING UP 197048/1 Acquired Road NORTHERN COMPONENT OF HIGHWAY) Subdivision Works in Highway 150834/1 Road corridor. Works in Highway 222376/1 Acquired Road corridor. Works in Highway 7193/1 Acquired Road corridor. Works in Highway 117176/2 Acquired Road corridor. *This single title comprises multiple parcels with the following works occurring: -Works in Highway Subdivision corridor. 154480/1 Road -Works in Highway corridor and upgrade to Geilston Bay Road -Upgrade at intersection of Highway and Golf Links Road. Works in Highway 113496/3 Acquired Road corridor and upgrade to Geilston Bay Road Upgrade at LGA intersection of 145187/101 Subdivision Dumbarton and Road Geilston Bay Road. Upgrade at 1 GEILSTON CREEK Local intersection of RD GEILSTON BAY 5116715 235698/1 Government Highway and TAS 7015 Authority Geilston Creek Road. *NO ADDRESS (LARGE Works in Highway PARCEL OF LAND corridor. MAKING UP Road (type SOUTHERN unknown) COMPONENT OF HIGHWAY) Upgrade to Geilston Bay Road and Department of 8 DEBOMFORDS LANE 5116379 internal road from Education GEILSTON BAY TAS Geilston Bay Road to 7015 School 'GEILSTON BAY Upgrade to Geilston RECREATION AREA' - Bay Road Local 18 DEBOMFORDS 1978262 227350/1 Government LANE GEILSTON BAY Authority TAS 7015

Upgrade at Subdivision intersection of 251913/1 Road Highway and Araluen Street. 'LINDISFARNE NORTH Internal roadworks in PRIMARY SCHOOL' - the School Department of 271 EAST DERWENT 5116360 251889/1 Education HWY GEILSTON BAY TAS 7015 'LINDISFARNE NORTH Upgrade at PRIMARY SCHOOL' - intersection of Department of 271 EAST DERWENT 5116360 251889/2 Highway and Education HWY GEILSTON BAY Derwent Avenue. TAS 7015 Upgrade at intersection of 7857/1 Acquired Road Highway and Golf Links Road. 'LINDISFARNE NORTH Works in Highway PRIMARY SCHOOL' - corridor. Department of 271 EAST DERWENT 5116360 227372/1 Education HWY GEILSTON BAY TAS 7015 Works in Highway 7856/1 Acquired Road corridor. Subdivision Works in Highway 207088/1 Road corridor. Works in Highway 8022/1 Acquired Road corridor. 6814/1 Acquired Road Works in Highway corridor. 230636/1 Subdivision Upgrade at Road intersection of Highway and Golf Links Road. 252232/1 Subdivision Upgrade at Road intersection of Clinton Road and Geilston Creek Road 83857/1 Acquired Road Works in Highway corridor. 9835/1 Acquired Road Works to the west of Highway corridor

Existing Road and Roadside Environment

5.5.1 Road/Intersection

The State Road Hierarchy identifies the East Derwent Highway as a Category 3 Road. Category 3 Roads are of strategic importance to regional and local communities and economies, they link important towns to the Category 1 and Category 2 roads. While they are used by heavy freight vehicles, this use is less than that of Category 2 Roads.

The existing dual lane highway merges down to single carriageway just north of the four-way Golf Links Road / Derwent Avenue traffic signals, at the southern end of the highway upgrade. From Golf Links Road to Clinton Road, the highway abuts a high-density residential area to the east (Geilston Bay), and the school and Recreational Area to the west. The posted speed through this section is 70 km/h. A large number of private properties, and several commercial businesses, have access onto the highway within this section. Two unsignalised side roads intersect the highway approximately 25m apart, including Debomfords Lane servicing Geilston Bay Recreation Area west of the highway, and Araluen Street servicing the broader residential area to the east. The pavement surface between Golf Links Road and Clinton Road is generally in poor condition, with limited texture and significant longitudinal and transverse cracking.

The existing four way unsignalised intersection of the highway with Clinton Road and Geilston Bay Road, just north of Faggs Gully Creek, provides short channelised right turn facilities into both side roads and limited allowance for left turning vehicles. Although the intersection itself is positioned square to the highway, the approaches to the intersection are predominantly curved. Due to the volume and speed of through traffic along the highway, delays at side road approaches and for right turning vehicles into these side roads, are often lengthy.

North of Clinton Road, the road and roadside environment transforms to a wider road cross section and the posted speed increases to 100 km/h as the highway rises between Sugarloaf and Government Hills towards Risdon. The pavement surface in this area is also generally in poor condition. The highway returns to a dual divided carriageway approximately 150m south of Sugarloaf Road which marks the northern extent of the project area. Two large multi-unit developments off Clinton Road back onto the eastern side of the highway within this section, as well as a number of properties off Dumbarton Drive to the west. Two large approved subdivisions continue along the western boundary of the highway heading towards Risdon, one of which is currently under construction and nearing completion. Discussions around access to the highway from these new subdivisions are ongoing, with one option being to link the through road into the northern end of Dumbarton Drive.

5.5.2 Traffic Data

Traffic volumes along the section of the East Derwent Highway being upgraded are relatively high, with a 2018 traffic survey indicating that the combined, two-way Annual Average Daily Traffic (AADT) was 17968 veh/day, approximately 230m north of Golf Links Road, with 6.7% of the traffic stream compromising heavy vehicles (Department of State Growth, 2018). The percentage of heavy vehicles increased by 1.5% in the 3 years between the 2015 and 2018 counts.

Comprehensive traffic surveys were conducted in October 2019 to better understand the current performance of the road network in the study area and enable development of traffic models as part of the Traffic Impact Assessment of the proposed upgrade. The targeted surveys included Automatic Traffic Counts (ATCs), Intersection Turning Movement Counts (TMCs) and queue length surveys for each of the intersections in the project area. These counts were utilised in design of the intersection configurations and interpretation of the crash data.

State Growth crash statistics over the past 10 years (2009 – 2019) indicate there have been a total of 125 known crashes along East Derwent Highway within the project area, from in the vicinity of Sugarloaf Road to just south of the Golf Links Road / Derwent Avenue intersection. The majority of crashes were minor or involved property damage only, however there were a four serious crashes over the period; one at the intersection of Derwent Avenue and the Highway, one on East Derwent Highway south of Debomfords Lane, one appearing off a side road adjacent to the Recreation Centre, and one on East Derwent Highway at the southern end of the project limits near Broad Street.

In particular, approximately seventy percent of total crashes at intersections within the project area were recorded near the intersections of East Derwent Highway with Sugarloaf Road (26 crashes) and Derwent Avenue / Golf Links Road (30 crashes). It should be noted that although the Derwent Avenue / Golf Links Road has the most crashes it also conveys the most traffic by a significant margin, ranging from approximately 25 – 50 times the number of vehicles at the Sugarloaf Road intersection.

5.5.3 Public Transport

A number of bus services operate through the project site, including school services, as illustrated in Figure 5-2. There is one northbound bus stop along the highway just north of the intersection of the highway with Debomfords Lane. Two southbound stops are within the project area, one situated just south of Clinton Road and the other approximately 100 m south of the Golf Links Road traffic signals.

Public bus services predominantly travel along the highway through the project area, with the exception of a route deviation from the main highway via Clinton Road and Sugarloaf Road.

Private school bus services also operate in the region, servicing a stop within Lindisfarne North Primary School and utilising stops along the highway within the project area to provide transport services for students to schools in the surrounding suburbs.

Figure 5-2: Bus routes operating in the project footprint (Source: https://www.metrotas.com.au)

5.5.4 Pedestrian and Cyclist Movements A number of formal and informal pedestrian and cycle paths exist within the project footprint.

· East Derwent Highway - south of Clinton Road where the Highway directly abuts the residential area, there is a pedestrian footpath on the eastern side of the Highway. To the north of Clinton Road, it appears pedestrians utilise side roads to access residences. There are currently no formal bike lanes on the Highway, however the road shoulder may be informally used by cyclists.

· School and sports area - although there appears to be no formal built pedestrian or cycle tracks, it is understood pedestrians and cyclists traverse the school and sports area.

· Faggs Gully Creek - running generally east-west there is a walking and cycling track following the Creek, linking to the Clarence Foreshore Trail, Bedlam Walls to the west and Pilchers Hill track network to the west.

· Geilston Bay Road - pedestrians and cyclists can access the Faggs Gully Creek track via pedestrian bridges, however the road itself does not appear to have dedicated pedestrian or cyclist facilities.

5.5.5 Private Accesses

There a large number of private properties, and several commercial businesses, with private access onto the highway within the project area, particularly on the eastern side of the highway between Golf Links Road and Clinton Road. No private land is expected to be impacted by the project footprint.

Proposal

Table 6-1 summarises the different components of the proposed works. The drawing numbers referred to can be viewed in Appendix C.

Table 6-1 : Summary of Proposed Works

Project Plan Proposed works

Across whole of project

· Widening of Highway to allow duplication from 2 to 4 lanes of traffic north of Golf Links Road and south of Sugarloaf Road (Highway already 4 lanes either side of this).

· New concrete raised central median and safety barrier for whole new section of Highway, other than between north of Clinton Road and south of Sugarloaf Road. Provision of a flexible safety barrier in the central median north of Clinton Road

· New concrete shared path (cycle and pedestrian) generally in front of school and Geilston Bay Recreation Area.

· New 1.5m bicycle lanes along East Derwent Highway with head-start boxes at intersections.

· Reinstatement of street lights and new street lights for new sections of road (refer to Lighting Layout Plan for details) · Removal of vegetation on edge of existing Highway road reserve and locations of new sections of Debomfords Lane and Dumbarton Drive (refer to ‘Ecological Values Mapping’ within the ecology appendix for specific details and locations). Reinstatement of landscaping to make good disturbed areas (refer to Landscape Layout Plan for details).

· New stormwater conveyance infrastructure to supplement the existing system where required, including water sensitive urban design components · Reconstruction of existing pavement and surfacing.

Drawing 1301 (southernmost section)

· Upgrade to intersection of Highway and Derwent Avenue/Golf Links Road. The right-turning lane storage lengths for both north and south approaches have also been increased from 50m and 60m, to 90m and 65m, respectively. U-turns have been allowed at the north approach. · Upgrade to School entry from Derwent Avenue To be left-hand in only for northbound traffic. This updated access point will also provide a dedicated left-turn lane with approximately 50m storage length, separated from highway through traffic. *No change to internal school carpark.

Drawing 1302

· Upgrade to School entry from Highway, including upgrade to existing .

· Removal of intersection of Debomfords Lane and Highway

· Extension of Debomfords Lane to the north to meet new section of Dumbarton Drive.

· New School Access Road (not a pubic road and located within the School site) linking School to Debomfords Lane.

· Alter intersection of Araluen Street and Highway, converted to a ‘left in left out’ intersection.

Drawing 1303

· Removal of intersection of Geilston Bay Road and Highway. Geilston Bay now ends as a cul-de-sac immediately to the west of the Highway.

· Relocation of intersection of Clinton Road and Highway to the south, to align with with new intersection of Highway and Dumbarton Drive. This new 4-way intersection to have traffic lights. New intersection spans a section of Faggs Creek Gully by way of a culvert under the intersection.

· Alteration of intersection of Clinton Road and Geilston Creek Road.

· New private vehicle access off Geilston Creek Road providing access to 328 and 330 East Derwent Highway. Drawing 1308/1309

· Creation of new section of Dumbarton Drive from intersection of Geilston Bay Road/ Dumbarton Drive to the Highway (immediately to the south of Faggs Creek Gully). To include shared path and path across Creek linking to Geilston Bay Road.

· Upgrade intersection of Dumbarton Drive and Geilston Bay Road..

· New bio retention basin to manage stormwater, located immediately to south-east of new intersection of Dumbarton Drive and Highway.

Drawing 1306 (northern most section)

· Upgrade to intersection of Sugarloaf Road and Highway. Storage capacity for the right turn lane at the southern approach to the East Derwent Highway / Sugarloaf Road intersection has been increased from 55m to 135m.

Design

The design was developed in accordance with the guidelines and standards listed below: · Department of State Growth Standards and Specifications · Austroads Guidelines · Australian Standards · Local Government Authority (LGAT) standards

6.1.1 Design Speed

Design speeds adopted along the highway and other local roads proposed within the project extents are summarised below.

Posted speed limits along the highway will predominantly remain the same as existing, except for an existing 80 km/h speed zone, which commences approximately 200m south of Sugarloaf Road for southbound traffic, and reduces to 70 km/h just north of the Clinton Road intersection. This section has been removed as it does not meet the minimum speed zone length requirements based on Austroads Guide to Traffic Management – Part 5. Design speeds nominally 10 km/h above the proposed posted have been adopted for horizontal and vertical geometric design, including for local roads, as shown in Table 6-2.

Speed reductions within the project area and north of Sugarloaf Road are outside the scope of this project and are subject to separate speed limit reviews by State Growth on a case-by-case basis.

Table 6-2 : Design and Posted Speed Zones, East Derwent Highway (Northbound and Southbound)

Start Chainage End Chainage Design Speed (km/h) Posted Speed (km/h) 2800 3659 80 70 3659 4400 110 100

For the ancillary local roads, speed zones have been adopted in accordance with Table 6-3. Table 6-3 : Design and Posted Speed Zones, New Local Roads

Local Road Component Design Speed (km/h) Posted Speed (km/h) Dumbarton Drive 60 50 Debomfords Lane 25(1) 25(1) School Access Road 50 40 (1)An advisory speed of 25 km/h is required on the realigned connection of Debomfords Lane to Dumbarton Drive, refer below.

A posted speed of 40 km/h is proposed along the school access road in accordance with Australian Standards and Austroads Guidelines for school zones. Advisory 25 km/h speed signage is required for of the connection of Dumbarton Drive to Debomfords Lane. The geometry adopted for this road segment is a function of the swept path of the design vehicle (discussed below), limiting curve speed checks, the location of the intersection of Dumbarton Drive and Debomfords Lane (to allow for vehicle queuing movements) and minimising land use impacts for future master planning.

6.1.2 Design Vehicle

Design vehicles adopted along the highway and other local roads proposed within the project extents are summarised below.

Table 6-4 : Nominal Design Vehicles within Project Extents

Road Component Design Vehicle Justification East Derwent Highway 26m B-Double(1) The highway is on a B-Double route Dumbarton Drive 12.5m Single Unit truck(2) Allowance for service vehicles and garbage disposal services Debomfords Lane 19m Semi-trailer(3) Allowance for large vehicles accessing the boat club, based on stakeholder consultation School Access Road 12.5m bus(4) Buses using the school access road will be predominantly standard length, based on stakeholder consultation Geilston Bay Road 12.5m Single Unit truck(2)(5) Allowance for service vehicles and garbage disposal services

(1)Particular movements not appropriate for the nominated design vehicle will be signed accordingly. This includes the regulated U-turn movements at both sets of traffic signals (Golf Links Road / Derwent Ave and Clinton Road / Dumbarton Drive), which will be signed for light vehicle movements only.

(2)The footprint of the new roundabout at Dumbarton Drive / Geilston Bay Road has had to be reduced to minimise impacts to the creek and adjacent properties. To accommodate the turn path of the prescribed design vehicle, the central island radius of the roundabout (mountable) has been reduced to 5m, with an 8m circulating width. There are of a similar small footprint located nearby in Clarence.

(3)The width and alignment of the Debomfords Lane road segment is based on the swept path of the design vehicle, including widening of the throat of the Debomfords Lane / Dumbarton Drive intersection.

(4)The school access roundabout has a mountable apron to accommodate turn paths of the design vehicle and intermittent larger vehicles (such as articulated buses).

(5)LGAT standard dimensions adopted for the Geilston Bay Road cul-de-sac head are suited for single turn movements by a B85/B99 vehicle. A multi-point turn will be required by service vehicles within the cul-de-sac.

6.1.3 Typical Cross Sections

In accordance with Austroads Guidelines and the Department of State Growth’s Professional Services Specification, T3 – Road Design Standards, the following typical cross sections have been adopted along East Derwent Highway.

Golf Links Road to Clinton Road (refer Figure 6-1) generally comprises: · 3.5m wide traffic lanes · 2.2m wide raised concrete centre median with pedestrian fencing · 3.5m wide turn lanes (as required) · 1.5m wide bike lane (northbound) · 2.0m wide bike lane (southbound), adjacent to parking lane · Barrier kerb and channel

Clinton Road to Sugarloaf Road (refer Figure 6-2) generally comprises: · 3.5m wide traffic lanes · 2.2m wide line marked median with central flexible safety barrier · 3.5m wide turn lanes (as required) · 1.5m wide road shoulders · 0.5m wide sealed verge (minimum)

Figure 6-1: East Derwent Highway typical section, north of Golf Links Road

Figure 6-2: East Derwent Highway typical section, north of Clinton Road New local roads, including the extension of Dumbarton Drive, Debomfords Lane and the new school access road, have been designed in accordance with Local Government Association Tasmania (LGAT) requirements, as far as reasonably practical. Current road and lane widths have generally been retained at existing side road intersection with the highway.

In line with the minimum LGAT requirements for a local through road (Table 1, TSD-R06-v1), the extension of Dumbarton Drive to the new traffic signals (refer Figure 6-3) generally comprises:

· 4.45m wide traffic lanes (to face of kerb) · Barrier kerb and channel · 1.5m wide footpath (one side only) · 2.0m verges both sides, safety barrier provided adjacent to the creek gully as required

The road reservation width with along Dumbarton Drive had been reduced from 18.0m to mitigate impacts to Faggs Gully Creek and the adjacent sporting facilities.

The new Debomfords Lane section also generally meets the minimum requirements for a LGAT local through road, although as described in the previous sections, road width geometry has also been governed by the swept path of the design vehicle. Notably, a footpath has not been specifically provided along this section, due to the proximity to the separately provided shared path adjacent to the highway. This road segment (refer Figure 6-4) generally comprises:

· 4.8m wide traffic lanes (to face of kerb) · Barrier kerb and channel · 2.0m verges, both sides with safety barrier provided as required

As above, the road reservation width with along Debomfords Lane has been reduced from 18.0m to mitigate impacts to adjacent sporting facilities, vegetation and Aboriginal heritage features. The road cross narrows to tie-in with the existing Debomfords Lane section at approximately Ch 200 (MC13).

The school access road cross section (refer Figure 6-5) generally comprises:

· 4.45m wide traffic lanes (to face of kerb) · Barrier kerb and channel · 2.0m verge

Similarly to the previous road sections, the road reservation width along the access road has been reduced to mitigate impacts to adjacent vegetation. A footpath has not been specifically provided along this section, due to the proximity of the separately provided shared path adjacent to the highway, which provides a connection to an existing zebra crossing within the school. Figure 6-3: Dumbarton Drive Cross Section

Figure 6-4: Debomfords Lane Cross Section Figure 6-5: School Access Road Cross Section

Bridge Structures

An existing concrete box culvert structure (Bridge number B44) under the Highway at Faggs Gully Creek will require extension on the upstream and downstream ends as part of the upgrade. A condition assessment undertaken for this culvert in 2018 classified the entirety of B44 as in ‘Good’ condition. A summary of the extensions is provided below.

Table 6-5 : B44 – Existing Highway Box Culvert, Structural Extensions

Structure Treatment Cell Dimensions Length of Comments Number (span x height) Extension Eastern This structure will require Preliminary checks 15m A minor size mismatch may be an extension to facilitate indicate that the structure expected if standard metric units are the access road to Lot No. may be extended using used. Some grouting may be required 228 and 230. 2100x2400 precast culvert to provide a smooth transition to the crown units. new units. The existing retaining wall, wing walls and kerb will need to be removed prior to the extension being installed. In-situ or custom precast units will be required for the first 5m due to shape of the existing creek bed. Western The existing culvert Preliminary checks 13m Some grouting may be required to structure requires indicate that the structure provide a smooth transition to the new extending to may be extended using units. The bed of the existing structure accommodate road 2100x2400 precast culvert has been filled with sediment and silt widening crown units. overtime and is to be cleared out and re-regraded with rock pitching (unless concrete slab is uncovered) in order to facilitate extension units. A twin box culvert is required under the new Dumbarton Drive/Geilston Bay Road roundabout, downstream of the existing creek crossing, approximately 200m downstream. This has been modelled as a 2/2100x2100 RCBC structure, with the final size and structural design to be confirmed by detailed flood modelling, and will comprise a concrete slab floor and precast wingwall units.

A Hydraulic Impact Assessment, further detailing drainage design considerations for these culverts has been provided in Appendix J.

Public Transport

The existing northbound bus stop along the highway, in vicinity to Debomfords Lane, requires relocation approximately 100 m south of its existing location. As the highway is being duplicated, public bus services deviating from the main highway via Clinton Road will now need to merge across two lanes of traffic to access the right turn lane at the new Clinton Road traffic signals. Relocation of the stop further south is also a flow on effect of the Clinton Road / Dumbarton Drive intersection moving further south.

Given the existing southbound stop at Clinton Road is positioned at the location of the upgraded signalised intersection, this stop requires reinstatement and relocation further south. The stop has been relocated on the departure side of the intersection of the highway with Araluen Street, beside Eastern Shore Radiator Repairs, and virtually opposite the existing stop.

Both new bus stops have been designed in accordance with LGAT standards for a parallel indented bus bay and will include reinstatement of existing shelters (where applicable) and upgraded to meet disabled access requirements. Pedestrian connections from designated crossing points to each of these existing stops will be provided through the new concrete shared and/or upgraded asphalt footpath along the eastern side of the highway, as detailed in Section 6.4.

The bus stop 100m south of Golf Links Road traffic signals will be retained and reinstated in its existing condition. Consideration of bus turn paths at the school roundabout and access road have also been considered, in line with the design vehicles outlined in Section 6.1.2.

Pedestrians and Cyclists

Acknowledging the urban setting of the project area and proximity of commercial areas, Lindisfarne North Primary School and recreational facilities, there will be changes and improvements to existing pedestrian and cycling features as part of the project.

Pedestrians will be no longer be able to cross the highway haphazardly due to installation of a central median pedestrian fence along the highway between Golf Links road and Clinton Road and on the Derwent Avenue intersection approach (RMS Type 1 or approved equal). Infrastructure will thereby safely direct pedestrians to a controlled crossing or bus stop boarding location, including installation of tactile ground surface indicators (TGSIs) for the visually impaired. The existing asphalt footpath along the eastern side of the highway between Golf Links Road to Clinton Road will be reinstated and improved within the road reserve, with the aim of achieving the requirements of LGAT standards or Austroads Guidelines as far as reasonably practical within a brownfield site and without adversely impacting adjacent properties.

A new concrete shared user path for pedestrians and cyclists will be provided along the western side of the highway between the existing pedestrian crossings at Derwent Avenue / East Derwent Highway and a new signalised pedestrian crossing at East Derwent Highway / Clinton Road. This path also serves to function as an improved access path for Lindisfarne North Primary Scholl and the Geilston Bay Recreation Area. The new signalled crossing point at East Derwent Highway / Clinton Road will replace the existing pedestrian refuge island across the highway near Araluen Street. All other new crossing points across minor roads (e.g. in the recreation area and near the school) have been designed in accordance with Austroads guidelines and LGAT Standards.

Improved cycling facilities also included provision of new 1.5m bicycle lanes along the East Derwent from Golf Links Road to Clinton Road, with head-start boxes at intersections and delineation of conflict zones. Although 1.5m road shoulders will be provided either side of the duplicated highway north of Clinton Road, these shoulders will not be line marked or signed as formal cycle lane facilities.

Local Roads and Private Accesses

A description of key aspects of new local road design components has been provided above. These components have also been previously discussed with Department of Education and Clarence City Council and optimised as far as possible to minimise adjacent land use impacts.

Due to pavement and footpath improvements proposed along the eastern side of the highway between Golf Links Road and Clinton Road, minor works to existing driveway crossovers will be required. Any crossover impacted will be reinstated in its existing position and meet the minimum width requirements for urban driveways under the LGAT Standards. As there is no significant change in position or footprint of these accesses, existing sightlines will remain unchanged.

There are some accesses and associated footpath crossfalls which currently do not meet LGAT or disabled access standards with respect to vertical transitions and/or crossfall. It is not always feasible to make improvementswithout adversely impacting adjacent properties or compromising the safety of the road design. As far as reasonably practical, improvements have been made to improve footpath and driveway crossfalls, including localised adjustments to the parking lane crossfall, installation of grated wedge driveway crossovers (LGAT Std Drg TSD R14-v1) in locations where this helps flatten footpath crossfalls and installation of a low-profile concrete nib wall against existing property boundaries within the road reserve (as required).

Discussions about access arrangements for retail businesses accessed from the highway and Nubeena Crescent just south of Golf Links Road intersection are still being held with affected business owners. The intent is to retain the current access point off the highway into this commercial area, however consideration of required road design standards and safe turn paths is also required. The access off the highway does not currently meet LGAT standards, with respect to driveway profile transitions and turn paths. There is also a current ingress and egress point from Nubeena Crescent to this precinct. Geilston Creek Road provides access to a number of residential dwellings east of East Derwent Highway. Based on stakeholder feedback received from selected residents, a new access road will be provided for residents closest to the new intersection to Geilston Creek Road. This new access road will meet the width requirements of an equivalent short local road cul-de-sac, with the geometry to be compliant with Austroads guidelines. This arrangement will provide greater separation between the residents’ egress points and the adjacent traffic signals.

Stormwater

6.6.1 Existing stormwater network

A number of existing urban stormwater catchments, conveyed via an underground stormwater network, discharge to the main tributary of Faggs Gully Creek. The overall catchment for the creek drains an area of approximately 6 km2. Other key features of the existing stormwater network within the project extents include:

· Golf Links to Debomfords Lane – a large pit and pipe drainage network collects runoff from south of Golf Links Road through to Araluen Street. Runoff is then conveyed in a trunk main (diameter varies between 1050mm and 900mm) along Debomfords Lane and discharges to Faggs Gully Creek, approximately 400m west of the highway.

· Dumbarton Drive – the catchment for the network draining to two large detention pits at the Geilston Bay Road / Dumbarton Drive intersection includes runoff from the new subdivisions, north-west of the project extents, as well as urban stormwater from Dumbarton Drive and across the highway from an urban catchment along Clinton Road. The network includes a large earthen channel, a detention system and multi-pipe outfall into Faggs Gully Creek.

Each of these features in addition to the performance of the existing network, are described in further detail as part of the Hydraulic Impact Assessment undertaken for the project. Refer Appendix J.

6.6.2 Stormwater System Design Methodology and Modelling

Since the upgrade will involve a large increase in impervious area due to duplication of the highway and addition of new local roads, the adequacy of the existing stormwater capture and conveyance system required hydraulic assessment and supplementing with additional infrastructure.

The design intent was to utilise the existing stormwater system and discharge points as much as possible. Kerb and channel has been incorporated alongside the highway in a number of locations, and along the new local roads to minimise impacts on adjacent land and reduce the amount of earthworks required in cutting drains. Due to the introduction of these hard drainage features, use of Water Sensitive Urban Design (WSUD) principles has been considered in the design to reduce impacts of increased catchment imperviousness on peak flows and water quality.

Minimal changes have been made to the existing highway’s vertical and horizontal geometry to ensure that existing overland flow paths could be maintained along their natural alignment and afflux minimised as much as possible. New stormwater infrastructure was introduced to assist in capturing flows from these overland flow paths, in particular, grated strip drains in the central median. New additions to the stormwater network have also been designed and graded to discharge runoff by gravity into public stormwater infrastructure, which includes existing systems and/or watercourses.

New local road infrastructure west of the highway and on the southern side of Faggs Gully Creek require new discharge points to the creek to be introduced to avoid a lengthy trunk drainage system connecting to an existing outlet. These new outlet points have been proposed near the downstream extension of the twin box culvert under the highway where rock protection will be provided to prevent scour at the outlet. Locating new discharge outlets in a location where scour protection is already proposed helps mitigate the risk of further erosion and confines discharge points in one location so that natural stream bed conditions can be maintained downstream as much as possible.

Although there may be an opportunity to further rationalise discharge points in the Detailed Design phase of the project, most of the new outlet points comprise relatively small catchments. The outlet with the largest catchment has also been designed to incorporate a bio-retention basin upstream, which will detain and slow flow velocities and improve the water quality of flows discharging into the creek.

Further details regarding the proposed drainage design are described in further detail as part of the Hydraulic Impact Assessment undertaken for the project. Refer Appendix J.

Service Relocations

In addition to the stormwater network, there are a number of other utilities impacted by the road upgrade that will require relocation or protection as part of the works. For the most part, these works will be undertaken within the Crown’s road reservation between Golf Links Road and Clinton Road, including impacts to:

· Bulk transfer and reticulation water mains – water mains predominantly run along the western side of the highway between Golf Links and Clinton Road. The 495mm diameter bulk transfer main is generally clear of the work footprint (with the exception of the shared path), until it crosses the highway in vicinity to the new signalised intersection. Based on site excavations, this crossing is believed to be sufficiently deep to avoid impacts during construction. Relocation of a 200mm diameter reticulation main alongside the existing highway will require relocation between Golf Links Road and Debomfords Lane. · Reticulation sewer mains – A number of existing sewer manholes will require relocation to outside the new carriageway and thereby require connection and cutover to existing sewer mains. Sewer crossings of the highway otherwise not impacted by the works, may require mechanical protection where they have been found to be relatively shallow.

· Copper and optic fibre – shallow underground communication cables are likely to be impacted along the eastern side of the highway during reconstruction of the existing asphalt footpath between Golf Links Road and Clinton Road. Cables along the western side of the highway are generally clear of the works footprint (with the exception of the shared path). There are some impacts to cables due to relocation of Dumbarton Drive / Clinton Road signalised intersection.

· Underground low and high voltage power cables – a HV power cable crosses the highway just north of the Derwent Avenue / Golf Links Road traffic signals and runs along the western side of the highway. It is likely a section of this cable will require relocation as part of the works.

There are also a small number of power poles that will require relocation as part of the works, and a number of existing power poles which will be fitted with new street lighting outreaches as detailed in Section 6.9. Liaison with impacted service authorities to determine the scope of relocations is ongoing.

Landscaping

Landscaping adjacent to the Highway is proposedadjacent to the Highway corridor and includes a mix of native plant species and incorporation of a vegetated bioswale and retention basin. In developing the Landscaping Layout Plan (included in the Drawing set at Appendix C), consideration has been given to ongoing maintenance and land use for school expansions and recreation area masterplanning.

The proposed revegetation of Faggs Gully Creek shown in the Landscaping Layout Plan is indicative. If Council has any particular direction on revegetation in this area, it is considered this can be expressed by way of condition of planning permit.

Lighting

Existing street lighting along the highway is being upgraded to meet the minimum requirements for Category V5 standard lighting, including at the Sugarloaf Road intersection. New lighting to Category P5 minimum requirements has been provided on the new sections of Dumbarton Drive and Debomfords Lane, with additional lighting requirements along the school access road and shared path currently being confirmed. A ‘Lighting Layout Plan’, forming part of the drawing set at Appendix C, provides full details of the proposed landscaping treatments.

Land Acquisition

No private land is being acquired.

Geology

An investigation was undertaken between 28 October to 1 November 2019, by an experienced Geotechnical Engineer from Jacobs. The detailed findings are discussed at Appendix I ‘Ground Conditions Report’.

The regional surface geology generally comprises Triassic age quartzose to feldspathic sandstone (Rqph) however parts of the duplication alignment may also intersect Permian age glaciomarine interbedded siltstone and sandstone (Pua). Alluvial soils (Qa) may also be encountered near Faggs Gully Creek. A short section (approximately 60 m) of the southbound carriageway north of Faggs Gully Creek (Chainage 3.54 km to Chainage 3.60 km) has a landslide hazard risk of “Medium” and is a potential source for rock fall. The proposed design does not change the road geometry in the vicinity of any rock slope i.e. the offset between the rock slope and the road shoulder does not change. On this basis there is no change in risk to the road user and it is considered that a detailed landslide risk assessment is not required.

Soil investigations do not indicate soils to be unsuitable for onsite reuse or off-site disposal to landfill.

Flora & Fauna

A Natural Value Assessment was undertaken between November 2019 and August 2020. The detailed findings are discussed at Appendix G.

Key ecological values identified within the Assessment Buffer for the project include:

· 4.5 ha of native vegetation and 24 emergent trees. This vegetation is mostly degraded, although some higher quality remnants occur in the hills on the periphery.

· One State threatened flora species; Smooth New-Holland Daisy (Vittadinia burbridgeae). No individual plants fall within the Construction Footprint.

· Five Commonwealth and State threatened fauna species have a moderate to high likelihood of utilising habitat within the project area. A further two species have a moderate to high likelihood of utilising aquatic habitat downstream of the project area. Assuming all mitigation measures detailed in the Natural Values Assessment are adhered to, these will not be impacted.

· Seven declared weeds species and two pest species.

Land Capability

The LIST’s Land Capability layer shows no classification of land within the project footprint.

Natural Hazards

Minor sections of the project footprint impact Landslide Hazard Areas. These impacts have been assessed as negligible given existing conditions in these sections are not likely to differ greatly in the proposed design. Refer to Appendix I ‘Geotechnical Report’ for further assessment of landslide risk.

Historic Heritage

There are no registered historic heritage sites in close proximity to the site.

Aboriginal Heritage

As the Scheme does not consider Aboriginal heritage and the dissemination of locations of known Aboriginal heritage locations is controlled by AHT, the assessments and approval are not provided as part of this report – they can be provided directly to Council if requested.

Noise

Based on modelling undertaken, it is predicted the traffic noise from the upgraded Highway will not be perceivably louder than the existing traffic noise. The Highway development footprint generally matches the existing footprint and is not proposed to be significantly closer to any residential areas to the east or west of the Highway.

The predicted traffic noise from the upgraded Highway was assessed by the Department of State Growth, as road authority for the Highway, against the Tasmanian State Road Traffic Noise Management Guidelines. The outcome of this assessment under the Guideline’s overarching principles of reasonableness, practicality and cost-effectiveness, was that it is appropriate to proceed without noise mitigation given that an imperceptible change in noise level would be considered acceptable without mitigation.

Appendix H ‘Road Traffic Noise Assessment’ provides details of the noise testing and predictions.

Construction

Construction of the project is planned to commence in late 2020, with a construction period expected up to 12 months.

6.18.1 Construction Environmental Management Plan

State Growth requires all contractors to submit a Construction Environmental Management Plan (CEMP) that demonstrates compliance with best practice guidelines and relevant legislation and regulation. The CEMP must be compliant with the Department’s G10 Environmental Specification. CEMPs are reviewed and approved by the Department’s Environmental Officers who are certified Environmental Management System (EMS) Auditors, prior to site award to ensure the contractor has effectively identified and attributed construction related environmental risks, and has the systems and processes in place to effectively mitigate risk and respond to and report environmental incidents and emergency scenarios.

6.18.2 Construction Traffic Management

The construction methodology and staging of the upgrade is a major consideration, given the high traffic volumes in the project area. Due to the nature of the works, some level of disruption to traffic will be unavoidable during the construction phase of the project. The detailed design phase of the project will consider ways in which this can be minimised. The final construction methodology and program will also need to consider traffic management as a priority. Tenderers, as part of the tender evaluation process, will need to demonstrate a construction methodology and traffic management plan that provides minimal disruption to road users.

Construction for the project is intended to be undertaken during normal construction hours. The need to ensure minimal disruption to road users may necessitate rare overnight or Sunday works. If these works are required, they will generally consist of works necessary for transitional traffic arrangements or that are unable to be undertaken during busier traffic times. All practical steps will be undertaken to minimise impacts of noise and disturbance to surrounding residents. Where possible, State Growth undertakes stakeholder engagement prior to road works through provision of advance warnings and the like, particularly for works outside of normal hours, where local residents and regular road users are advised in advance of such works. Stakeholder Engagement

The Department of State Growth engaged Jacobs to conduct stakeholder engagement throughout the project’s design phase. A formal public consultation period was undertaken from 11-25 November 2019, when multiple channels were implemented to reach a broad audience of interested and impacted stakeholders.

A Stakeholder and Community Engagement Plan (SCEP) was developed to identify the project and stakeholder engagement objectives together with a comprehensive stakeholder identification and risk analysis. These activities informed the appropriate engagement activities and channels of communication to ensure a two-way, consultative process was implemented.

Engagement activities included, but were not limited to:

· Face to face meetings with five local business owners and representatives from recreation area facility tenants (boat club, football club, cricket club and tennis club).

· Face to face meetings with Department of Education, Clarence City Council, Lindisfarne North Primary School and Metro.

· Two staffed community information and consultation sessions at the Lindisfarne Anglican Church Hall – over 70 attendees and 18 feedback forms were completed.

· Static unstaffed display in Clarence City Council’s foyer with roll map, information flyers and comments forms and box, with just two feedback forms completed and submitted.

· Doorknocking adjacent residential properties and engaging with occupants (22 properties visited, six direct engagements, two follow ups and information packs left with all stakeholders).

· 16 initial telephone calls and emails.

· Social Pinpoint site with markers, generated 104 comments (https://stategrowthtas.mysocialpinpoint.com/east-derwent-highway-upgrade).

· Roads Tasmania Facebook post with 186 likes, 204 comments (unfiltered) and 53 shares.

· Media release from Tasmanian Transport Minister Michael Ferguson.

· Public notice (The Mercury newspaper) announcing community engagement.

Further to the above, a dedicated project website has been live since the start of the consultation process in early November 2019: https://www.transport.tas.gov.au/road/projects/eastderwenthighwayupgrade

The project received overall community support, with the majority of feedback welcoming the upgrade, some noting it was long awaited. Following a thorough feedback review, clear themes emerged, including:

· Concerns around traffic congestion and if the project would result in reducing congestion, particularly for school traffic. Stakeholders queried if traffic signal phasing and management of turn movements and slip lanes had been considered so congestion issues weren’t exacerbated. · Support for pedestrian safety improvements, with particular focus on safety of school children and linkages to existing infrastructure.

· General support for the shared pedestrian and cycling path.

· Support for minimising environmental impacts, especially trees and wildlife safety.

· Concerns included impacts to amenity through noise and visual outlooks, construction impacts and consideration for future growth and development in the area – particularly the likely Dumbarton Drive extension and resulting traffic increases.

Extended one-on-one discussions were held with directly impacted residents along East Derwent Highway, which have resulted in redesigned driveway crossover locations, vastly improving safety and improving residents’ access to Clinton Avenue/East Derwent Highway.

Other design alterations resulting from consultation are the addition of a roundabout at the Geilston Bay Road/Dumbarton intersection as a current and future traffic calming measure, enlargement and adjustment to the roundabout at Lindisfarne North Primary School, extension of the right turn storage lane at East Derwent Highway/Golf Links Road and extension of the left turn in lane at Lindisfarne North Primary School.

Site Photographs

Figures 8-1 to 8-4 show photos of the existing arrangements of the key parts of the project footprint.

Figure 8-1: intersection of East Derwent Highway and Golf Links Road, facing north-west (source: www.google.com) Figure 8-2: intersection of East Derwent Highway and Araluen Street, facing south-west (source: www.google.com)

Figure 8-3: intersection of East Derwent Highway and Clinton Street, facing north-west (source: www.google.com)

Figure 8-4: intersection of East Derwent Highway and Sugarloaf Road, facing south-east (source: www.google.com) Planning Scheme

The project is located within the Clarence Local Government Area. The applicable Planning Scheme is the Clarence Interim Planning Scheme 2015 and the relevant Planning Authority is the Clarence City Council.

Assessment of an Application for Use or Development

Exemptions

Pursuant to Clause 6.2.3 and 6.2.4 of the Scheme, minor upgrades by the State Government of roads, including minor widening of existing carriageways, are exempt from requiring a permit under the Scheme.

It is considered the proposed works do not constitute minor upgrades for the purposes of Clause 6.2.3 and 6.2.4 and are therefore not exempt, hence this application has been lodged for Council’s consideration.

Discretionary Use or Development

Pursuant to Clause 8.8.1 Council has a discretion to refuse or permit a use or development if:

(a) the use is within a use class specified in the applicable Use Table as being a use which is discretionary; (b) the use or development complies with each applicable standard but relies upon a performance criterion to do so; or (c) it is discretionary under any other provision of the planning scheme, (d) and the use or development is not prohibited under any other provision of the planning scheme.

This proposal requires exercise of discretion as:

· some of the zones where works are occurring list the uses as discretionary, · some of the applicable zone and codes performance criteria are relied upon.

Therefore, this proposal is a ‘discretionary application’.

Determining Applications

In determining a permit application Council must have regard to Clause 8.10.1:

(a) all applicable standards and requirements in this planning scheme; and (b) any representations received pursuant to and in conformity with ss57(5) of the Act,

but in the case of the exercise of discretion, only insofar as each such matter is relevant to the particular discretion being exercised.

In determining any discretionary aspects of the proposal Council must, in addition to 8.10.1, have regard to 8.10.2:

(a) the purpose of the applicable zone; (b) any relevant local area objective or desired future character statement for the applicable zone; (c) the purpose of any applicable code; and (d) the purpose of any applicable specific area plan.

but only insofar as each such purpose, local area object or desired future character statement is relevant to the particular discretion being exercised. An assessment in accordance with Clause 8.10.1 and 8.10.2 of the Scheme is provided in the remainder of Section 9 of this report.

Planning Scheme Objectives

Clause 2 of the Scheme identifies the purpose of the Scheme and discusses the Regional Land Use Strategy.

Clause 3 of the Scheme identifies the Regional and Local objectives for Infrastructure. Clause 3.0.1-R states the Regional Objective is to ‘to adopt a more integrated approach to planning and infrastructure’. Clause 3.0.1-L lists no Local Objectives for Infrastructure.

Clause 8.10.3 state in determining an application for any permit the planning authority must not take into consideration matters referred to in clauses 2.0 and 3.0 of the planning scheme – hence this report supporting an application for a permit does not assess against these provisions of the Scheme.

Use Categorisation

The proposed works have two uses. The majority of the project is ‘Utilities’ use and the works within the School is ‘Education and occasional care’ use. The definitions for each use are specified at Clause 8.2 of the Scheme:

Utilities: Use of land for utilities and infrastructure including: telecommunications; electricity generation; transmitting or distributing gas, oil or power; transport networks; collecting, treating, transmitting, storing or distributing water; or collecting, treating, or disposing of storm or floodwater, sewage or sullage. Examples include an electrical sub-station or power line, gas, water or sewerage main, optic fibre main or distribution hub, pumping station, railway line, retarding basin, road, sewage treatment plant, storm or flood water drain, water storage dam and weir.

Educational and occasional care: use of land for educational or short-term care purposes. Examples include a childcare centre, day respite facility, employment training centre, kindergarten, primary school, secondary school and tertiary institution.

Pursuant to Clause 8.2.2, a use that is associated with and a subservient part of another use on the same site will be categorised in the same use class. For example, vegetation clearing as part of a road project will be classified as Utilities.

Pursuant to Clause 8.2.5, if more than one use is proposed, each use that is not directly associated with and subservient to another use on the same site must be individually categorised into a use class. It is considered the works within the School are not directly associated with the general Highway upgrade as the two works can occur in isolation of each other. Further, the vehicle accessway within the School is not considered to be a Road, pursuant to the Scheme’s definition of such, as the general public will not have permanent right of passage.

Part C Zones

9.4.1 Zones impacted

The proposal impacts the following zones:

· Utilities: The Highway and extent of the Highway’s road reserve is zoned Utilities. All works proposed in this Zone are considered to be ‘Utilities’ use – pursuant to Clause 28.2 this use is Permitted in this Zone. · Open Space: The majority of Faggs Creek Gully and the grassed area between the Highway and the football oval is zones Open Space. All works proposed in this Zone are considered to be ‘Utilities’ use – pursuant to Clause 19.2 this use is Discretionary in this Zone.

· Community Purpose: The School is zoned Community Purpose. All works proposed in this Zone are considered to be ‘Educational and occasional care’ use – pursuant to Clause 17.2 this use is Permitted in this Zone.

· General Residential: There are small sections of roadworks with minor encroachments into the General Residential Zone. None of the works are in private land, only in ‘local roads’ zoned as Residential and not Utilities. As the works in the General Residential Zone are confined to minor upgrades to existing roads a detailed assessment against this Code is not considered necessary. All works proposed in this Zone are considered to be ‘Utilities’ use – pursuant to Clause 10.2 this use is Discretionary in this Zone.

Figure 9-1 illustrates the project footprint (purple outline and fill) in relation to the Scheme’s mapped Zones.

Figure 9-1: Zone Map in relation to project footprint

9.4.2 Clause 28, Utilities Zone

The following works are proposed in this zone:

· Widening of Highway to allow duplication from 2 to 4 lanes of traffic · New concrete raised central median in center of Highway · New shared path on west of Highway and reinstatement of path on east · New on-road cycling lane on both sides of Highway · Reinstatement of street lights. · Removal of planted Blue Gums on western edge of Highway and reinstatement of landscaping · New bio retention basin to manage stormwater · Alterations to following roads intersecting with Highway: o Derwent Avenue/Golf Links Road (alteration to intersection) o School entry (alteration) o Debomfords Lane (removal) o Araluen Street (alteration) o Geilston Bay Road (removal) o Dumbarton Drive (new) o Clinton Road (relocation) o Sugarloaf Road (alteration)

All works occurring in the Utilities Zone are classified as ‘Utilities’ use.

The proposed upgrade to the Highway is a significant state and regional infrastructure utility. The project is consistent with the purposes of the Zone and complies with all relevant Applicable Standards - the proposal relies on the following Performance Criteria for the Zone:

· Clause 28.3.2 Noise (use) · Clause 28.4.3 Landscaping (development)

28.1 Zone Purpose

The Utilities Zone Purpose is:

28.1.1.1 To provide land for major utilities installations and corridors. 28.1.1.2 To provide for other compatible uses where they do not adversely impact on the utility.

There are no desired Local Area Objectives or Desired Future Character Statements.

28.2 Use Table

Pursuant to the Use Table at Clause 28.2, Utilities are classified as Permitted within the Zone.

28.3 Use Standards

The proposal complies with each Applicable Standard pursuant to Clause 28.3 Use Standards. Table 9-1 provides an assessment against each Applicable Standard.

*Pursuant to Clause 7.5.3, compliance with Applicable Standards consists of complying with either the Acceptable Solution or the Performance Criterion for that standard.

Table 9-1: Assessment against Use Standards for works in the Utility Zone

Acceptable Solution / Compliance Statement Performance Criteria 28.3.1 Hours of Operation Complies with Acceptable Solution A1 Hours of operation of a use The use is Utilities and therefore excepted from the hours of within 50 m of a residential operation for A1. zone must be within 7.00 am to 7.00 pm, except if: (i) for office and administrative tasks; or (ii) a Utilities use. 28.3.2 Noise Complies with Performance Criteria A1 Noise emissions measured at the boundary of a A1 is not achieved as the noise from the existing Highway already residential zone must not exceeds the maximum decibel limits specified by A1. The predicted exceed the following: noise from the upgraded Highway does not decrease the noise below (a) 55dB(A) (LAeq) these limits. between the hours of 7.00 am to 7.00 pm; P1 is achieved as the predicted noise from the Highway upgrade will (b) 5dB(A) above the not cause environmental harm to the nearby residential zones to the background (LA90) level or west and east of the Highway. 40dB(A) (LAeq), whichever is the lower, between the An Acoustic Assessment at Appendix H provides a detailed hours of 7.00om and 7.00 assessment of predicted noise. am; (c) 65dB(A) (LAmax) at any The Scheme defines Environmental harm as having the meaning time. stated in the Environmental Management and Pollution Control Act 1994 (EMPC Act). Section 5(1) of the EMPC defines environmental P1 harm as ‘…any adverse effect on the environment (of whatever degree Noise emissions measured or duration) and includes an environmental nuisance’. at the boundary of the residential zone must not The definition in the EMPC Act is useful, however it is a general cause environmental harm. definition encompassing all environmental harm (i.e. for noise, odor, water pollution, deforestation etc.) and doesn’t provide specific criteria, such decibel limits, to assess if an adverse effect may be caused by noise.

The Tasmanian State Road Traffic Noise Management Guidelines (Guidelines) is a Department of State Growth publication to manage traffic noise on Tasmanian Highways. The Department is the road authority for Highways in Tasmania and the Guidelines are endorsed by the Environmental Protection Authority (EPA) Tasmania. The Guidelines specifically consider traffic noise in relation to nuisance and provide corresponding decibel limits.

The Guide was used to assess environmental harm for this proposal as it is considered to provide the most informative criteria to assess road noise. On 2 February 2020 Council’s Environmental Health division stated Council agreed to using the Guidelines to inform this acoustic assessment, including an assessment of environmental harm.

The Guide considers that:

· Noise levels below 63 dB(A) are acceptable. · Noise increases of 3 dB(A) or less will not be readily perceptible, therefore an exceedance of 63 dB(A) by less than 3 dB(A) will not necessarily result in a perceptible loss of amenity.

That an increase of 3 dB(A) or less will not be readily perceptible is important to note in this project, which is upgrading an existing Highway. The key consideration is whether the change in noise will be acceptable.

As discussed in Appendix H, there are no instances of the Highway’s predicted noise in the abutting residential areas being both greater than 63 dB(A) and an increase of 3 dB(A). It is therefore predicted that that the upgrades will not cause environmental harm. As it is predicted that that the upgrades will not cause environmental harm there are no noise mitigation treatments proposed.

28.3.3 External Lighting Complies with Acceptable Solution A1 External lighting (not All lighting will be street lighting and therefore excepted from the including street lighting) external lighting requirements for A1. within 50 m of a residential zone must comply with all of the following: (a) be turned off between 10:00 pm and 6:00 am, except for security lighting; (b) security lighting must be baffled to ensure they do not cause emission of light outside the zone. 28.3.4 Commercial Not applicable Vehicle Movements The proposal does not include a use which will introduce commercial vehicle movements.

28.3.5 Discretionary use Not applicable

No uses which are not directly associated with utilities are proposed on land within the Utilities Zone.

28.4 Development Standards

The proposal complies each Applicable Standard pursuant to Clause 28.4 Development Standards. Table 9-2 provides an assessment against each applicable standard.

Table 9-2 Assessment against Development Standards for works in the Utility Zone

Acceptable Compliance Statement Solution/Performance Criteria 28.4.1 Building Height Complies with Acceptable Solutions A1 Building height must be no The proposed works are no more than 8.5m in height above natural more than: 10 m. ground level and adhere to the requirements of A1 and A2. A2 Building height within 10 m of a residential zone must be no more than 8.5 m. 28.4.2 Setback Not applicable Objective: To ensure that building Pursuant to the definition of ‘Buildings’ in the Act, it is considered the setback contributes majority of the proposed works, i.e. roadworks, are not defined as a positively to the streetscape building as they are not structures. and does not result in unreasonable impact on The existing Highway directly abuts the residential zone to the east. residential amenity of land It can be considered the Highway has a 0m setback to the residential in a residential zone. zone as the pedestrian footpath is within the road reserve and forms A1 part of the Highway. This element of the design is replicated in the Building setback from proposal. frontage must be no less than: 10 m to the frontage The proposed upgrade works generally mimic the existing design, and 6 m to any other resulting in no significant changes to setbacks. boundary. A2 Building setback from a residential zone must be no less than: (a) 5 m; (b) half the height of the wall, whichever is the greater. 28.4.3 Landscaping Complies with Acceptable Solution (A1) and Performance A1 Criteria (P2) Landscaping is not required along the frontage of a site The proposed landscaping generally replaces vegetation in areas if the building has nil where it is required to be removed for the upgrade works to occur. setback to frontage. A2 A Landscape Plan forms part of the drawing set within Appendix C, Along a boundary with a this Plan details the proposed landscape treatments. residential zone landscaping must be The convergence of park, school and suburban setting, use by provided for a depth no less pedestrians and ongoing maintenance costs and work place than: 10 m. accessibility have all been considered in the proposed landscaping treatments. P1 Landscaping must be The proposal complies with A1. Landscaping is proposed in provided to satisfy all of the locations suitable for plantings. As per existing conditions, no following: plantings are proposed in the footpath to the east of the Highway (a) enhance the generally between Golf Links Road and Araluen St as there is no appearance of the setback space to allow for such. development; (b) provide a range of plant The proposal complies with P2: Technically the proposal does not height and forms to comply with A2 as not all buffers with residential zones are able to be create diversity, interest and planted 10m wide. The proposed landscaping shown in the amenity; Landscape Plan generally results in ‘like for like’ replacement of (c) not create concealed vegetation, whereby resulting in no unreasonable adverse impact on entrapment spaces; the visual amenity of adjoining land in a residential zone (d) be consistent with any Desired Future Character Statements provided for the area. P2 Along a boundary with a residential zone landscaping or a building design solution must be provided to avoid unreasonable adverse impact on the visual amenity of adjoining land in a residential zone, having regard to the characteristics of the site and the characteristics of the adjoining residentially zones land. 28.4.4 Outdoor Storage Not applicable Areas No outdoor storage areas are proposed.

28.4.5 Fencing Not applicable

No fencing is proposed.

28.5 Development Standards for Subdivision

No subdivision is proposed.

9.4.3 Clause 17. Community Purpose

The following works are proposed in this Zone:

· New ‘School Access Road’ connecting the northern section of the School carpark to Debomfords Lane, including alteration to the existing roundabout and accessway to Highway. · Removal of 5x planted Blue Gums to the north of the roundabout. Reinstatement of landscaping as per ‘Landscaping Layout Plan’.

*The alteration to the School access from Derwent Avenue is located in the Residential Zone.

These works in the Zone are confined to the area shown as pink outline as illustrated in Figure 9.2.

Figure 9-2: Location of works within the Community Purpose Zone

All works occurring in the Community Purpose Zone are classified as ‘Educational and occasional care’ as the works are only associated with a private road directly associated with the School and vegetation on School grounds.

No works classified as ‘Utilities’ are occurring in this zone, hence there is no assessment of this use against this Zone.

The component of the project occurring in this Zone is minor. This component is consistent with the purposes of the zone and complies with all relevant Applicable Standards by meeting the Acceptable Solutions (no Performance Criteria are relied upon).

17.1 Zone Purpose

The Community Purpose Zone Purpose is:

17.1.1.1 To provide for key community facilities and services where those facilities and services are not appropriate for inclusion as an associated activity within another zone. 17.1.1.2 To ensure land required for future public use is protected from inappropriate use or development. 17.1.1.3 To encourage multipurpose, flexible and adaptable social infrastructure to respond to changing and emerging community needs. There are no desired Local Area Objectives or Desired Future Character Statements.

17.2 Use Table

Pursuant to the Use Table at Clause 17.2, Educational and occasional care are classified as Permitted within the Zone.

17.3 Use Standards

The proposal complies each Applicable Standard pursuant to Clause 17.3 Use Standards. Table 9-3 provides an assessment against each applicable standard.

Table 9-3: Assessment against use standards for works in the Community Purpose Zone 17.3 Use Standards Compliance Statement Acceptable Solution/Performance Criteria 17.3.1 Hours of Operation Not Applicable Objective: To ensure that hours of The component of the project within the Community Purpose operation near a residential zone is confined to the creation of a new small section of zone do not result in School Access Road and alteration of an existing School unreasonable adverse Access Road. There is no change in the hours of operation of impact on the school or vehicle accessway. residential amenity. 17.3.2 Noise Not Applicable Objective: To ensure that noise The component of the project within the Community Purpose emissions near a residential zone is confined to the creation of a new small section of zone do not result in School Access Road and alteration of an existing School unreasonable adverse Access Road. There is no change in the speeds or intensity of impact on the vehicle accessway and therefore no noise impacts. residential amenity. 17.3.3 External Lighting Not Applicable A1 External lighting, other than The component of the project within the Community Purpose flood lighting of sport and zone proposes no new external lighting. All new and altered recreation facilities, within street lighting is adjacent the area of the Zone, for the public 50 m of a residential zone roads forming part of the project. must comply with all of the following: (a) be turned off between 9:00 pm and 6:00 am, except for security lighting; (b) security lighting must be baffled to ensure they do not cause emission of light outside the zone. 17.3.4 Commercial Not Applicable Vehicle Movements Objective: The component of the project within the Community Purpose To ensure that commercial zone is confined to the creation of a new small section of vehicle movements not School Access Road and alteration of an existing School have unreasonable impact Access Road. Any existing/future commercial vehicle on residential amenity on movements associated with the operation of the School will not land within a residential be impacted by the proposed works. zone 17.3.5 Discretionary Use Not Applicable Objective: To avoid the The proposal will not change the existing School use on site. commercialisation and privatisation of public land intended for community use.

17.4 Development Standards

The proposal complies each Applicable Standard pursuant to Clause 17.4 Development Standards. Table 9-4 provides an assessment against each applicable standard.

Table 9-4: Assessment against development standards for works in the Community Purpose Zone Acceptable Compliance Statement Solution/Performance Criteria 17.4.1 Building Height Complies with Acceptable Solution A1 Building height must be no The proposed works are no more than 8.5m in height above more than: 10 m. natural ground level and therefore adheres to the requirements A2 of A1 and A2. Building height within 10 m of a residential zone must be no more than 8.5 m. 17.4.2 Setback Not Applicable A1 Building setback from No new works are proposed within the frontage of the School frontage must be no less site and the site does not directly abut a residential area. The than: 10 m. only works within the ‘frontage’ are the alteration to an existing A2 school access road. Building setback from a residential zone must be no less than: (a) 3 m; (b) half the height of the wall, whichever is the greater. 17.4.3 Design Not Applicable Objective: To ensure that building The existing design of the School building is not proposed to design contributes positively be altered. to the streetscape, the amenity and safety of the The proposed alteration to the layout of the School’s public and adjoining land in accessway will have a negligible impact to the streetscape, a residential zone. amenity and safety. 17.4.4 Passive Not Applicable Surveillance Objective: The existing design of the School building is not proposed to To ensure that building be altered. The proposed works will not impact passive design provides for the surveillance. safety of the public. 17.4.5 Landscaping Complies with Acceptable Solution A1 Landscaping must be The area between the School site and the Highway is provided along the frontage proposed to be landscaped with a mix of trees and shrubs, of a site (except where details provided in the Landscape Layout Plan with Appendix access is provided) unless C. The majority of this landscaping is on the buffer of the Utility the building has nil setback and Community Purpose Zone. to frontage. 17.4.6 Outdoor Storage Not Applicable Areas No outdoor storage areas are proposed.

17.4.7 Fencing Not Applicable

No fencing is proposed.

9.4.4 Clause 19. Open Space

The following works are proposed in this zone:

· Creation of new section of Dumbarton Drive from existing intersection of Geilston Bay Road/ Dumbarton Drive to the Highway (immediately to the south of Faggs Creek Gully). To include shared path and path across Creek linking to Geilston Bay Road.

· Extension of Debomfords Lane to meet new section of Dumbarton Drive, and removal of small section of Lane which currently accesses the Highway.

· Minor upgrade to intersection of Clinton Road and Geilston Creek Road (this intersection partly zoned Open Space and partly Residential). New vehicle access off Geilston Creek Road providing access to 328 and 330 East Derwent Highway.

· Removal of 8x emergent trees adjacent to Faggs Gully Creek to allow for the new section of Dumbarton Drive. Reinstatement of landscaping as per ‘Landscaping Layout Plan’.

· Small section of drainage works to the western side of the Highway (works located approximately opposite Unit 14, 73 Clinton Rd). *The parcel of land zoned Open Space (9835/1) where these drainage works extend into is an Acquired Road, therefore it is considered it is intended to be used for a function of the Highway.

All works occurring in the Open Space Zone are classified as ‘Utilities’ – as the works either directly impact public roads or are directly associated with the changes to these roads.

The project is consistent with the purposes of the zone and complies with all relevant Applicable Standards (no Performance Criteria are relied upon).

19.1 Zone Purpose The Open Space Zone purpose is:

19.1.1.1 To provide land for open space purposes including for passive recreation and natural or landscape amenity. 19.1.1.2 To encourage open space networks that are linked through the provision of walking and cycle trails. 19.1.1.3 To provide for appropriate exploitation of the sand mining resource at Seven Mile Beach.

There are no desired Local Area Objectives or Desired Future Character Statements.

19.2 Use Table Pursuant to the Use Table at Clause 19.2, Utilities are classified as Discretionary within the Zone. However, Clause 9.2 of the Scheme establishes existing use rights as follows:

proposals for development …associated with a use class specified … as a discretionary use, must be considered as if that use class had permitted status … where the proposal for development does not establish a new use, or substantially intensify the use.

All works within the Zone are Utilities and should be considered to be permitted as follows:

· No new uses are proposed, the use of land for Utilities is existing. · The use is not being substantially intensified. The only new component of the utility is the new extensions of Debomfords Lane and Dumbarton Drive which will not create intensification, the remainder of the works are rearrangements of existing development.

This assessment considers the effect of Clause 9.2 is that the Utilities proposed in the Open Space Zone are considered to be a Permitted use.

19.3 Use Standards

The proposal complies each Applicable Standard pursuant to Clause 19.3 Use Standards. Table 9-5 provides an assessment against each applicable standard.

Table 9-5: Assessment against use standards for works in the Open Space Zone

Acceptable Compliance Statement Solution/Performance Criteria 19.3.1 Hours of Operation Not applicable Objective: To ensure that hours of operation near a The only component of the project within the Open Space zone in residential zone do not proximity to a residential zone (the dwellings at 248 to 256 Geilston result in unreasonable Bay Road) is the new section of Dumbarton Drive. This new section adverse impact on will have a positive impact to residences as ‘through traffic’ will no residential amenity. longer use Geilston Bay Road (which is closer to the nearby residences).

There are no changes to the hours of operation of this public road.

19.3.2 Noise Not applicable Objective: To ensure that noise emissions near a The only component of the project within the Open Space zone in residential zone do not proximity to a residential zone (the dwellings at 248 to 256 Geilston result in unreasonable Bay Road) is the new section of Dumbarton Drive. This new section adverse impact on will have a positive impact for traffic noise to these residences as residential amenity. ‘through traffic’ will no longer use Geilston Bay Road (which is closer to those residences).

There is no change in the speeds or intensity of the vehicles using the roads and therefore generally no change in traffic noise.

19.3.3 External Lighting Not applicable Objective: To ensure that external lighting does not The only component of the project within the Open Space zone in have unreasonable impact proximity to a residential zone (the dwellings at 248 to 256 Geilston on residential amenity on Bay Road) is the new section of Dumbarton Drive. land within a residential This section will have street lights, however these will have no more zone. impact than the existing lights on the streets within the residential zones.

19.3.4 Commercial Not applicable Vehicle Movements Objective: To ensure that Any existing/future commercial vehicle movements will not be commercial vehicle impacted by the proposed works. The proposal will not generate any movements not have commercial traffic. unreasonable impact on residential amenity on land within a residential zone. 19.3.5 Discretionary Use Not applicable Objective: To ensure land within the zone is used As discussed above, the use of Utilities as roads in the Open Space primarily for purposes Zone is an existing use and therefore must be considered as a consistent with Zone permitted use. Purpose.

19.4 Development Standards

The proposal complies each Applicable Standard pursuant to Clause 19.4 Development Standards. Table 9-6 provides an assessment against each applicable standard.

Table 9-6: Assessment against development standards for works in the Open Space Zone

Acceptable Compliance Statement Solution/Performance Criteria 19.4.1 Building Height Complies with Acceptable Solution A1 Building height must be no The proposed works are no more than 6.5m in height above natural more than: 6.5 m. ground level and therefore adheres to the requirements of A1.

19.4.2 Setback Not Applicable Objective: To ensure that building setback contributes The works in the Open Space zone are generally limited to roads positively to the streetscape which will be buffered either side by parks, ovals, footpaths and and does not result in waterways. unreasonable impact on residential amenity of land in a residential zone. 19.4.3 Landscaping Not Applicable Objective: To ensure that a safe and attractive The Acceptable Solution states that landscaping must be provided landscaping treatment within a frontage. There are multiple parcels of land in this Zone, enhances the appearance however as they are not residential lots they don’t have traditional of the site and if relevant ‘frontages’ and therefore an assessment against this provision is not provides a visual break from applicable. The below is noted with regard to landscaping: land in a residential zone. A number of emergent trees are being removed adjacent to Faggs Gully Creek to allow the new section of Dumbarton Drive and upgrade to the intersection of Geilston Bay Rd/Dumbarton Drive.

The proposed revegetation of Faggs Gully Creek is shown in the Landscaping Layout Plan, part of the Drawing set at Appendix C.. 19.4.4 Fencing Not Applicable Objective: To ensure that fencing does not detract No fencing is proposed. from the appearance of the site or the locality and provides for passive surveillance.

9.4.5 General Residential

The following portions of the alterations to existing roads/intersections/crossovers are partly located in the General Residential Zone:

· Eastern extent of alteration to Highway and Golf Links Road, as Golf Links Road is a local road and zoned Residential. · Eastern extent of Araluen Street intersection alteration, as Araluen Street is a local road and zoned Residential. · Northern extent of alteration of Dumbarton Drive and Geilston Bay Road, the majority of this intersection is zoned Open Space. · Eastern extent of alteration to Clinton Road and Geilston Creek Road (part of this intersection is zoned Open Space). · Southern section of accessway off Geilston Creek Road. · Alteration to School entry from Derwent Avenue, as Derwent Road is a local road and zoned Residential.

All the works are confined to alterations to existing roadworks and are generally partly located in the Utility Zone – the above works represent the works at the interface with the Residential zone. There are no works are occurring in private land, only in local roads zoned Residential. For example, Figure 9-3 illustrates the minor portion of the alteration to the intersection to Araluen Street within the Residential zone as pink outline.

Figure 9-3: Portion of alteration to Araluen Street within the Residential Zone.

As all works in the Residential Zone are alterations to existing and not establishing a new use or intensifying the use, pursuant to Clause 9.2 the Utility use must be considered as Permitted. This report considers an assessment of the works against the Zone’s development standards is not applicable as the works in the Zone are minor and the standards are not generally relevant as they are focused on the applicability of dwellings and buildings and new non-residential development and use.

Part D Codes

9.5.1 E1.0 Bushfire Prone Areas Code

The purpose of this Code is to ensure that use and development is appropriately designed, located, serviced, and constructed, to reduce the risk to human life and property, and the cost to the community, caused by bushfires

E1.2 Application of this Code The code is not applicable to this assessment as it does not involve subdivision or vulnerable or hazardous uses.

9.5.2 E2.0 Potentially Contaminated Land Code

The purpose of this Code is to ensure that use or development of potentially contaminated land does not adversely impact on human health or the environment.

Appendix I comprises a ‘Ground Conditions Report’, prepared by Jacobs in August 2020.

The project is consistent with the purposes of the Code and complies with all relevant Applicable Standards – the following Performance Criteria are relied upon:

· E2.5 Use Standard · E2.6.2 Development standards for Excavation

E2.2 Application of this Code This Code applies to: (a) a use, on potentially contaminated land, that is a sensitive use, or a use listed in a use class in Table E2.2.1 and is one of the uses specified as a qualification; or (b) development on potentially contaminated land.

Clause E2 defines: Potentially contaminated land: means land that is, or adjoins, land that the applicant or the planning authority: (a) knows to have been used for a potentially contaminating activity by reference to: (i) a notice issued in accordance with Part 5A of the Environmental Management and Pollution Control Act 1994; or (ii) a previous permit ; or (b) ought reasonably to have known was used for a potentially contaminating activity.

Potentially contaminating activity: means an activity listed in Table E2.2 as a potentially contaminating activity, other than an activity carried out as ancillary to a Residential use class.

Table E2.2 ‘Potentially Contaminating Activities’ includes ‘Landfill sites, including onsite waste disposal and refuse pits’. The Code is applicable as it is understood part of the site was a former Landfill.

E2.4 Use or Development exempt from this Code There are no applicable exemptions for the project.

E2.5 Use Standards The proposal complies with the Performance Criteria pursuant to Clause E2.5 Use Standards. Table 9-7 provides an assessment against each applicable standard.

Table 9-7: Assessment against use standards for Potentially Contaminated Land Code

Acceptable Compliance Statement Solution/Performance Criteria A1 A1 is not achieved. The Director (as defined in the Environmental The Director, or a person Management and Pollution Control Act 1994, generally the Director of approved by the Director for the EPA) has made no certification or approval. the purpose of this Code: (a) certifies that the land is P1 is achieved. Appendix I provides a detailed assessment of the suitable for the intended proposed works with regard to potential contamination. use; or (b) approves a plan to The proposed works meet P1 ‘b’ in that the excavation does not manage contamination and adversely impact on human health or the environment. Appendix I, associated risk to human Section 5.2.3.1 ‘Results Considering Human Health and Ecological health or the environment Receptors’ states: Based on the results of soil samples in this limited that will ensure the land is investigation near the former landfill and areas to be excavated for the suitable for the intended new user path and roads, the risks to the health of workers and use. ecological receptors during construction are indicated to be low.

P1 *To adhere to P1 the proposal must adhere to either a, b or c – a Land is suitable for the proposal is not required to adhere to all. intended use, having regard to: (a) an environmental site assessment that demonstrates there is no evidence the land is contaminated; or (b) an environmental site assessment that demonstrates that the level of contamination does not present a risk to human health or the environment; or (c) a plan to manage contamination and associated risk to human health or the environment that includes: (i) an environmental site assessment; (ii) any specific remediation and protection measures required to be implemented before any use commences; and (iii) a statement that the land is suitable for the intended use.

E2.6 Development standards for Excavation The proposal complies with the Performance Criteria pursuant to Clause E2.6 Development Standards. Table 9-8 provides an assessment against each applicable standard.

Table 9-8: Assessment against development standards for Potentially Contaminated Land Code Acceptable Compliance Statement Solution/Performance Criteria E2.6.2 Excavation A1 is not applicable. A1 No acceptable solution. P1 is achieved. The proposed works meet P1 ‘b’ as follows: P1 Excavation does not b,i: Appendix I constitutes an environmental site assessment. adversely impact on health and the environment, b,ii: Appendix I, Section 6.6 ‘Contaminated land investigation’ having regard to: recommends the following: …further sampling and analysis is recommended to delineate the extent of acid sulfate soil and identify (a)an environmental site specific controls and mitigations. Management requirements will assessment that need to be included as a component of a Construction demonstrates there is no Environmental Management Plan developed for the works. evidence the land is contaminated; or b,iii: Appendix I, Section 6.6 states: Contaminant concentrations in (b) a plan to manage soil sample collected near the former landfill and in areas to be contamination and excavated (proposed shared user path and new roads at Lindisfarne associated risk to human North Primary School / Geilston Bay Recreation Area) were below health and the environment the human health and ecological guideline values for public open that includes: space land use and ecological significance, respectively, indicating a (i) an environmental site low risk to construction worker health. assessment; (ii)any specific remediation Analysed samples from the proposed area to be excavated did not and protection exceed the EPA Tasmania IB 105 threshold for ‘Fill” material. measures required to be implemented Further, Appendix I, Section 5.2.3.1 ‘Results Considering Human before excavation Health and Ecological Receptors’ states: Based on the results of soil commences; and samples in this limited investigation near the former landfill and (iii)a statement that the areas to be excavated for the new user path and roads, the risks to excavation does not the health of workers and ecological receptors during construction adversely impact on human are indicated to be low. health or the environment.

9.5.3 E3.0 Landslide Code The purpose of this Code is to ensure that use and development is appropriately designed, located, serviced, constructed or managed to reduce to within tolerable limits the risk to human life and property and the cost to the community, caused by landslides.

Appendix I comprises a Ground Conditions Assessment, prepared by Jacobs in August 2020.

The project is consistent with the purpose of the Code and complies with all relevant Applicable Standards and/or Performance Criteria.

E5.2 Application of the Code

The Code is applicable as the proposed works include development for buildings and works within a Landslide Hazard Area.

Clause E3.3 defines Landslide Hazard Area as an area shown on the planning scheme maps as a landslide hazard area, including Low, Medium And High Landslide Hazard Area.

The proposed works impact two small sections of land within a Landslide Hazard Area:

· The proposed section of works on the west most section of Geilston Bay Road impact a ‘Low’ Landslide Hazard Area. This section of the proposal has a minimal overlap with the ‘Low’ Landslide Hazard Area, approximately 30 sq.m. Figure 9-6 illustrates this section of the proposal, the purple hatch is the project extent and the orange hatch is the ‘Low’ Landslide Hazard Area.

Figure 9-4: location of works at western section of Geilston Bay road impacting Landslide Hazard Area

· The proposed section of works to the north of the intersection of East Derwent Highway and Clinton Road impact a ‘Medium’ Landslide Hazard Area. This section of the proposal has a minimal overlap with the ‘Medium’ Landslide Hazard Area, approximately 35-40 sq.m. Figure 9-7 illustrates this section of the proposal, the purple hatch is the project extent and the orange hatch is the ‘Medium Landslide Hazard Area. Figure 9-5: Location of works north of the intersection of the Highway and Clinton Road impacting Landslide Hazard Area.

These mapped areas are discussed in Section 2.3 Geohazards of Appendix I.

E3.6 Use Standards

The Code has two use standards, neither of which are applicable to the proposal:

· Standard E3.6.1 is applicable to Hazardous uses. Section E3.3 defines Hazardous uses as those involving fuel sales dangerous substances. The proposed use is not hazardous as per this definition and assessment against this Standard is not applicable.

· Standard E3.6.2 is applicable to Vulnerable uses. Section E3.3 defines Vulnerable uses as those involving certain residential, custodial, educational, hospital and visitor accommodation uses. The proposed use is not Vulnerable as per this definition and assessment against this Standard is not applicable.

E3.7 Development Standards The proposal complies with each Performance Criteria pursuant to Clause E3.7 Development Standards. Table 9-9 below table provides an assessment against each applicable standard.

Table 9-9. Assessment against development standards for Landslide Code

Acceptable Compliance Statement Solution/Performance Criteria E3.7.1 Buildings and Complies with Performance Criteria Works, other than Minor Extensions a) No works are located within a High Landslide Hazard Area.

A1 b) Clause E3.3 defines ‘acceptable risk’ as a risk society is No acceptable solution. prepared to accept as it is. That is; without management or treatment. P1 Buildings and works must Section 6.7 of Appendix I states “the current design…does not satisfy all of the following: change the road geometry in the vicinity of the rock slope i.e. the (a) no part of the buildings offset between the rock slope and the road shoulder does not and works is in a High change. On this basis there is no change in risk to the road user Landslide Hazard Area; and it is considered that a detailed landslide risk assessment is (b) the landslide risk not required.” associated with the buildings and works is It is therefore considered the landslide risk associated with the either: works is an acceptable risk. (i) acceptable risk; or (ii)capable of feasible and effective treatment through hazard management measures, so as to be tolerable risk.

E3.7.2 Minor Extensions N/A Works are not a minor extension

E3.7.3 Major Works Complies with Performance Criteria A1 No acceptable solution Refer to assessment for E3.7.1 (the performance criteria are the same). P1 Major works must satisfy all *The works proposed works within the Landslide Hazard Zone would of the following: likely not meet the definition of Major Works in Section E3.3, stated (a) no part of the works is in below: a High Landslide Hazard major works means any of the following: Area; (a) excavation of 100 m3 or more in cut volume; (b) the landslide risk (b) excavation or soil disturbance of an area of 1,000 m2 or associated with the works is more; either: (c) clearance of vegetation involving an area of more than (i) acceptable risk; or 1,000 m2; (ii) capable of feasible and (d) water storages or swimming pools with a volume of effective treatment through 45,000 litres or more. hazard management measures, so The proposed works would not trigger ‘c’ or ‘d’, however as the exact as to be tolerable risk. excavation quantities have not been finalised an assessment against the Major Works standard is deemed applicable.

9.5.4 E5.0 Road & Railway Assets Code

The purpose of this Code is to protect the safety and efficiency of road and railway networks and reduce the conflict between sensitive uses and major roads and the rail network.

Appendix K comprises a Traffic Impact Assessment, prepared by Jacobs in August 2020.

The project is consistent with the purposes of the Code and complies with all relevant Applicable Standards – the following Performance Criteria are relied upon:

· E5.6.4 Sight distance at accesses, junctions and level crossings

E5.2 Application of the Code

The Code is applicable as the proposed works include:

· a new vehicle crossing or junction, and · intensifies the use of an existing access. E5.5 Use Standards

The proposal complies each Applicable Standard pursuant to Clause E5.5 Use Standards. Table 9.10 provides an assessment against each applicable standard.

Table 9-10: Assessment against use standards for Road & Railway Assets Code

Acceptable Compliance Statement Solution/Performance Criteria E5.5.1 Existing road Complies with Acceptable Solution accesses and junctions A1 A1 is not applicable as no category 1 or 2 roads are within project site. Vehicle movements East Derwent Highway is a Category 3 road (based on the Tasmanian category for 1 or category 2 State Road Hierarchy) roads A2 A2 and A3 are met as there is no intensification of existing use or The annual average daily anticipated induced demand due to upgrades to East Derwent traffic (AADT) of vehicle Highway as specified in Section 3.3. movements, to and from a site, using an existing Refer to Appendix K’s Section 3.3 and 3.4 for further details. access or junction, in an area subject to a speed limit of more than 60km/h, must not increase by more than 10% or 10 vehicle movements per day, whichever is the greater. A3 The annual average daily traffic (AADT) of vehicle movements, to and from a site, using an existing access or junction, in an area subject to a speed limit of 60km/h or less, must not increase by more than 20% or 40 vehicle movements per day, whichever is the greater.

E5.5.2 Exiting level Not Applicable crossings The rail network is not within the project site.

E5.6 Development Standards The proposal complies with each Applicable Standard pursuant to Clause E5.6 Development Standards. Table 9-11 provides an assessment against each applicable standard.

Table 9-11: Assessment against development standards for Road & Railway Assets Code

Acceptable Compliance Statement Solution/Performance Criteria E5.6.1 Development Not Applicable adjacent to roads and railways Not applicable as no category 1 or 2 roads are within project site. East Objective: To ensure that Derwent Highway is a Category 3 road (based on the Tasmanian development adjacent to State Road Hierarchy) category 1 or category 2 roads or the rail network meets certain guidelines.

E5.6.2 Road accesses and Meets Acceptable Solution junctions A1 The proposed works meet the acceptable solution A1 and A2 as there No new access or junction are no new accesses or junctions to roads in an area subject to a to roads in an area speed limit of more than 60km/h. Note an existing intersection with the subject to a speed limit of highway is being relocated and replaced as part of the project, but is more than 60km/h. not considered additional. Note an existing intersection with the A2 highway is being relocated and replaced as part of the project, but is No more than one access not considered additional. providing both entry and exit, or two accesses Refer to Appendix K’s Section 3.1 for further details. providing separate entry and exit, to roads in an area subject to a speed limit of 60km/h or less.

E5.6.3 New level crossings Not Applicable Objective: To ensure that the safety and the efficiency The rail network is not within the project site. of the rail network E5.6.4 Sight distance at Meets Performance Criteria accesses, junctions and level crossings Meets the acceptable solution A1 as all accesses and junctions A1 provide sufficient sight distance between vehicles to enable safe Sight distances at: movement of traffic, except the junctions below. (a) an access or junction must comply with the Safe Meets the performance criteria P1 for parts f) any measures to Intersection Sight Distance improve or maintain sight distance; and g) any written advice received shown in Table E5.1; and from the road or rail authority, for the junctions of Geilston Bay Road / (b)rail level crossings must Dumbarton Drive and East Derwent Highway / Dumbarton Drive / comply with AS1742.7 Clinton Road. Refer to Section 5.3 which outlines sight distances Manual of uniform traffic achieved at these junctions. control devices Railway crossings, Standards Association of . P1 The design, layout and location of an access, junction or rail level crossing must provide adequate sight distances to ensure the safe movement of vehicles, having regard to: (a) the nature and frequency of the traffic generated by the use; (b) the frequency of use of the road or rail network; (c) any alternative access; (d) the need for the access, junction or level crossing; (e) any traffic impact assessment; (f) any measures to improve or maintain sight distance; and (g) any written advice received from the road or rail authority.

9.5.5 E6.0 Parking and Assets Code

The purpose of this Code is to ensure safety and efficient access to the road network for all user, ensuring sufficient parking, and that access and parking areas are designed and located to be safe to all users.

Appendix K comprises a Traffic Impact Assessment, prepared by Jacobs in August 2020.

The project is consistent with the purpose of the Code and complies with all relevant Applicable Standards (no Performance Criteria are relied upon).

E6.2 Application of the Code

The Code is applicable as it applies to all use and development.

E6.6 Use Standards

The proposal complies with each Applicable Standard pursuant to Clause E6.6 Use Standards. Table 9-12 provides an assessment against each applicable standard.

TABLE 9-12: ASSESSMENT AGAINST USE STANDARDS FOR PARKING AND ASSETS CODE

Acceptable Compliance Statement Solution/Performance Criteria E6.6.1 Number of Car Meets the Acceptable Solution Parking Spaces A1 The proposal meets the acceptable solution A1 as for ‘utility’ use The number of onsite car there is no parking space requirement for this use in accordance with parking spaces must be: no Table E6.1. As the development itself is not expected to directly less than the number impact the size of the student/teacher population, nor is the existing specified in Table E6.1 carpark at the school being altered, acceptable solution A1 is also met for “Education and occasional care” use.

Overall, there is a reduction in the available parking space along the highway as a result of the upgrade, however, improvements are expected due to the removal of existing no standing zones. Refer to Section 5.2.7. which outlines the parking infrastructure associated with the development. E6.6.2 to E6.6.4 – Other Not Applicable parking spaces Refer response to Clause E6.6.1. There is no reduction in the number of carparks or additional trips generated.

E6.7 Development Standards

The proposal complies with each Applicable Standard pursuant to Clause E6.7 Development Standards. Table 9-13 provides an assessment against each applicable standard.

Table 9-13: Assessment against development standards for Parking and Assets Code

Acceptable Compliance Statement Solution/Performance Criteria E6.7.1 Number of Meets Acceptable Solution vehicular accesses A1 The design meets acceptable solution A1, as the number of vehicle The number of vehicle access points provided for each road frontage is unchanged. access points provided for each road frontage must be no more than 1 or the existing number of vehicle access points, whichever is the greater.

6.7.2 Design of Vehicular Meets Acceptable Solution Accesses P1 As there are no new, additional access points as part of the works, Design of vehicle access existing access locations and footprints have been retained in their points must comply with all existing format or upgraded as far as reasonably practical within a of the following: brownfield site to achieve compliance with the relevant Australian (a) in the case of non- Standards. Acceptable solution A1 is achieved, and detailed further commercial vehicle access; in Section 5.2. of Appendix K. the location, sight distance, width and gradient of an access must be designed and constructed to comply with section 3 – “Access Facilities to Offstreet Parking Areas and Queuing Areas” of AS/NZS 2890.1:2004 Parking Facilities Part 1: Offstreet car parking; (b)in the case of commercial vehicle access; the location, sight distance, geometry and gradient of an access must be designed and constructed to comply with all access driveway provisions in section 3 “Access Driveways and Circulation Roadways” of AS2890.2 2002 Parking facilities Part 2: Offstreet commercial vehicle facilities.

E6.7.3 to E6.7.13 Vehicular Not Applicable Passing Areas Along an Access, On-Site Turning, The proposed works do not include these issues. Parking areas, Facilities for Commercial Vehicles and end of trip facilities E6.7.14 Access to a Road Meets Acceptable Solution A1 Access to a road must be in The design meets acceptable solution A1 as all access to the road accordance with the network is provided appropriately and in accordance with requirements of the road requirements of the road authority – these requirements are authority. specified in the Local Government Association (LGAT) Standard Drawings or Department of State Growth specifications. Notably, works undertaken at existing access points, may depart from these standards in some instances where it is not feasible or reasonably practical to achieve them without compromising road safety design outcomes or impacting adjacent landowners. A number of existing accesses in the project area do not meet required standards.

Appendix I’s Section 5.2 summarises key changes to vehicular and pedestrian access onto new or existing roads, and how these each meet the applicable road authority’s requirements within the project area.

9.5.6 E7.0 Stormwater Management Code

The purpose of the Code is to ensure that stormwater disposal is managed in a way that furthers the objectives of the State Stormwater Strategy.

Appendix J comprises a ‘Hydraulics Report’, prepared by Jacobs in August 2020.

The project is consistent with the purposes of the Code and complies with all relevant Applicable Standards (no Performance Criteria are relied upon).

Clause E7.2 Application of the Code

This Code is applicable as it applies to development requiring management of stormwater.

Clause E7.6 Use Standards

There are no use standards for this Code.

Clause E7.7 Development Standards

The proposal complies each Applicable Standard pursuant to Clause E7.7 Development Standards. Table 9-14 provides an assessment against each applicable standard.

Table 9-14: Assessment against development standards for Stormwater Management Code Acceptable Compliance Statement Solution/Performance Criteria E7.7.1 Stormwater Meets Acceptable Solution Drainage and Disposal A1 As detailed in Section 1.3 of Appendix J, any new additions to the Stormwater from new stormwater network have been designed and graded to capture runoff impervious surfaces must be from the highway and local roads, and discharged by gravity into disposed of by gravity to public stormwater infrastructure, which includes existing systems public stormwater and/or watercourses. infrastructure. P1 Acceptable Solution A1 is achieved. Stormwater from new impervious surfaces must be managed by any of the following: (a) disposed of onsite with soakage devices having regard to the suitability of the site, the system design and water sensitive urban design principles (b) collected for reuse on the site; (c) disposed of to public stormwater infrastructure via a pump system which is designed, maintained and managed to minimise the risk of failure to the satisfaction of the Council. A2 Meets Acceptable Solution A stormwater system for a new development must The increase in impervious area for the project exceeds 600 m2. The incorporate water sensitive project has demonstrated sufficient incorporation of WSUD principles urban design principles for in the design, verified through MUSIC modelling. Please refer Section the treatment and disposal 3.4 of Appendix J for further details. of stormwater if any of the following apply: Acceptable Solution A2 is satisfied. (a) the size of new impervious area is more than 600 m2; (b) new car parking is provided for more than 6 cars; (c) a subdivision is for more than 5 lots. P2 A stormwater system for a new development must incorporate a stormwater drainage system of a size and design sufficient to achieve the stormwater quality and quantity targets in accordance with the State Stormwater Strategy 2010, as detailed in Table E7.1 unless it is not feasible to do so. A3 Meets Acceptable Solution A minor stormwater drainage system must be The upgraded minor stormwater drainage system has been designed to comply with all designed to accommodate a 20 year ARI storm event (in line with of the following: the adopted flood immunity standards in Section 2.3 of Appendix J) (a) be able to accommodate as far as reasonably practical. It is acknowledged in some areas, a storm with an ARI of particularly at the new Geilston Bay / Dumbarton Drive roundabout, 20 years in the case of there are existing inundation issues in large flood events. The design non-industrial zoned has aimed to maintain existing conditions in this location, and avoid land and an ARI of 50 worsening of existing conditions as much as possible. years in the case of industrial zoned land, Where there is an increase in pre-existing runoff that cannot be when the land serviced accommodated within existing infrastructure, new or upgraded trunk by the system is fully drainage systems have been recommended to cater for additional developed; flows. This is demonstrated by use of the existing DN1050 trunk (b) stormwater runoff will be main along Debomfords Lane for a large section of the catchment no greater than pre- north of Golf Links Road, which is then supplemented by a new existing runoff or any underground network and roadside table drains to capture additional increase can be runoff, discharging to outlets to Faggs Gully Creek. It is noted that a accommodated within bioretention basin has been included in the design to detain and existing or upgraded slow flow velocities and improve the water quality of additional flows public stormwater discharging into the creek. infrastructure. P3 Acceptable Solution A3 is satisfied. No Performance Criteria. A4 Meets Acceptable Solution A major stormwater drainage system must be The major stormwater drainage system, including the combination of designed to accommodate a the minor stormwater drainage system, roads, watercourses and storm with an ARI of 100 overland flow paths, has been designed to accommodate a 100 year years. ARI storm event (in line with the adopted flood immunity standards in P4 Section 2.3 of Appendix J) as far as reasonably practical. As No Performance Criteria. indicated in response to A2, it is recognised that there are known existing inundation issues within the project area, and wherever possible the design seeks to capture and improve these issues, and to avoid worsening of existing conditions, in particular across roads and adjacent land. Thus, Acceptable Solution A4 is satisfied.

9.5.7 E8.0 Electricity Transmission Infrastructure Protection Code

The purpose of this Code is to ensure against hazards associated with proximity to electricity transmission infrastructure, ensure electricity transmission infrastructure projects do not adversely affect the safe and reliable operation of that infrastructure and maintain future opportunities for electricity transmission infrastructure.

E8.2 Application of the Code

This Code does not apply to this application. The Code applies to development within: an Electricity Transmission Corridor, 55m of a Communications Station and 65m of a Substation Facility. · The northern extent of the proposed works is approximately 80m to the south of the edge of an Electricity Transmission Corridor (the 110kV Risdon to Lindisfarne transmission line, which spans the Highway).

· The northern extent of the proposed works is approximately 350m to the south-west of a Communication Site associated with the Substation at Sugarloaf Road, Geilston Bay.

9.5.8 E9.0 Attenuation Code

The purpose of this Code is to minimise adverse effect on the health, safety and amenity of sensitive use from uses with potential to cause environmental harm and minimise likelihood for sensitive use to conflict with, interfere with or constrain uses with potential to cause environmental harm.

E9.2 Application of the Code

This Code does not apply to this application. The Code applies to uses with the potential to cause environmental harm or sensitive uses in certain settings – the proposal is neither of these.

9.5.9 E10.0 Biodiversity Code

This code is not used in this Planning Scheme.

9.5.10 E11.0 Waterway and Coastal Protection Code

The purpose of this Code is to manage vegetation and soil disturbance in the vicinity of wetlands, watercourses and the coastline.

Appendix J comprises a ‘Hydraulics Report’, prepared by Jacobs in August 2020.

Appendix G comprises a ‘Natural Values Assessment, prepared by Jacobs in August 2020.

The project is consistent with the purposes of the Code and complies with all relevant Applicable Standards – the following Performance Criteria are relied upon:

· E11.7 Development Standards for works not within a designated ‘building area’.

E11.2 Application of the Code and E11.4 Development Exempt from this Code

This Code applies as the proposed development partly impacts a Waterway and Coastal Protection Area.

Waterways within the project footprint

The Scheme defines Waterway and Coastal Protection Area as both the mapped ‘Waterway and Coastal Protection Area’ and within the relevant distance from a watercourse, wetland, lake or the coast as specified in the Table E11.1 of the Scheme.

There are two waterways that flow through the project area:

i. Faggs Gully Creek and an unnamed tributary of Faggs Gully Creek. Faggs Gully Creek is the main waterway that flows through the project area, flowing broadly east to west. It intersects the East Derwent Highway near Geilston Bay Rad, passing under it through a culvert, before its confluence with the Derwent River. ii. The unnamed tributary of Faggs Gully Creek flows from north to the south before confluencing with Faggs Gully Creek near Dumbarton Drive.

As both these waterways are represented by the mapped ‘Waterway and Coastal Protection Area’, for the purposes of this assessment the mapping will be taken to represent the extent of the Waterway and Coastal Protection Area. The width of the mapped waterways is approximately 60m, which accords with the extents specified in Table E11.1.

Works occurring in mapped waterways

The main section of works within the mapped waterways is around Faggs Creek Gully. Figure 9-8 illustrates the approximate edge of the mapped waterway Faggs Creek Gully (shown as pink dashed line) and the works occurring within, being the new section of Dumbarton Drive, the upgrade of the intersection of Dumbarton Drive/Geilston Bay Road and the new intersection of Dumbarton Drive/Highway/Clinton Road.

Figure 9-8: works occurring within the approximate mapped Waterway and Coastal Protection Area relevant to Faggs Creek Gully.

The other section of the mapped waterway impacting the project is on the Highway between Clinton Road and Sugarloaf Road, where the unnamed tributary intersects the Highway. Figure 9-9 illustrates the approximate edge of the mapped waterway of the unnamed tributary (shown as pink dashed line) and the works occurring within, which are contained to general Highway duplication and stormwater upgrades. Figure 9-9: works occurring within the approximate mapped Waterway and Coastal Protection Area relevant to unnamed tributary for Faggs Creek Gully.

Works applicable to assessment under the Code

Only the works occurring in the mapped Waterway and Coastal Protection Area are applicable to assessment against the Code. However, pursuant to Clause E11.4, the following works are exempt under this Code:

(c) development involving clearing or modification of vegetation or soil disturbance…(ii) within a private garden, public garden or park, national park or State reserved land.

Much of the mapped Waterway and Coastal Protection Area is adjacent to Faggs Gully Creek which is a public park. Any vegetation removal in this area is exempt from assessment against this Code.

(l )works within 2 m of existing infrastructure including roads, tracks, footpaths, cycle paths, drains, sewers, pipelines and telecommunications facilities for the maintenance, repair, upgrading or replacement of such infrastructure

The alteration of existing roads, footpaths, sewers and pipes are generally contained to within 2m of the original location – such works are exempt from assessment against this Code.

The impact of Clause E11.4 exemptions are that technically part of the works within the Waterway and Coastal Protection Area are exempt from assessment against the Code, and some are not exempt. As differentiating the exempt versus not exempt works is challenging (e.g. only part of the proposed culverts are within 2m of the existing infrastructure), for completeness the below assessment against the Code’s Applicable Standards generally assesses all the works occurring in Waterway and Coastal Protection Area.

E11.6 Use Standards

There are no use standards in this code.

E11.7 Development Standards

The proposal complies with each Applicable Standard pursuant to Clause E11.7 Development Standards. Table 9-15 provides an assessment against each applicable standard. Table 9-15: Assessment against development standards for Waterway and Coastal Protection Code

Acceptable Compliance Statement Solution/Performance Criteria E11.7.1 Buildings and Complies with Performance Criteria (P1) Works A1 The proposal does not comply with Acceptable Solution A1 as there Building and works within a is not an applicable Building Area. Waterway and Coastal Protection Area must be Assessment against P1 within a building area on a plan of subdivision The proposed works within the Waterway and Coastal Protection approved under this Area satisfy the requirements of P1. The project has been designed planning scheme. to impact the waterways to a minimal extent. Performance Criteria P1 As detailed in Appendix J, construction in and around key Building and works within a watercourses in the project area (i.e. for the highway culvert Waterway and Coastal extension and new roundabout culvert) will occur in small, discrete Protection Area must satisfy zones of impact to mitigate erosion and sedimentation impacts, and all of the following: to maintain natural in-stream habitat as much as possible. (a) avoid or mitigate impact on natural values; The below text assesses the proposal against the specific (b)mitigate and manage requirements of P1: adverse erosion, sedimentation and runoff a) Complies: The project has been designed to generally avoid impacts on natural values; natural values in the site’s waterways where possible by minimising (c) avoid or mitigate impacts works within the vicinity of Faggs Creek Gully and the unnamed on riparian or littoral tributary of Faggs Gully Creek. Where avoidance is not possible, the vegetation; below discussed mitigation strategies will minimise adverse impacts. (d) maintain natural streambank and streambed Appendix G, Section 4.3.2 considers the likelihood of impacts to condition, (where it exists); wetlands and waterways is low, assuming all recommended (e)maintain instream natural mitigation measures are adhered to. Appendix G, Table 4.4 ‘Faggs habitat, such as fallen logs, Gully Creek’ states construction of the new culvert and additional bank overhangs, rocks and discharge locations is not expected to have additional impacts to trailing vegetation; natural values along the creek outside of what has already been (f)avoid significantly assessed as lost through the Construction Footprint. Re-vegetation impeding natural flow and works will occur along the creek line, as detailed in the landscape drainage; plan within Appendix C. (g) maintain fish passage (where applicable); b) Complies: Sediment, erosion, run-off and water management (h) avoid landfilling of controls will be required as part of the construction contractor’s wetlands; Construction Environmental Management Plan (CEMP). As per (i) works are undertaken Appendix G, Table 4.1, mitigation measure for ‘Best practice generally in accordance measures to maintain the health of Waterways and Wetlands’ it is with 'Wetlands and recommended a condition of permit require the CEMP to include the Waterways Works Manual' following requirements: (DPIWE, 2003) and “Tasmanian Coastal Works · There is negligible change in water quality of any waterway Manual” (DPIPWE, Page caused by the proposed works and Thorp, 2010), and the · There is negligible reduction in suitability of fish passage through unnecessary use of any waterway during and following construction. machinery within · The works do not cause ‘environmental harm’ to any waterway through other means. watercourses or wetlands is · Revegetation of the creek line will occur following construction. avoided. · These controls, including a Sedimentation Management Plan, will be implemented through a CEMP prior to construction.

c), d), e), g) Complies: There are minimal works occurring in the waterway’s banks and beds within the project footprint, resulting in negligible direct impact to these features.

f) Complies: There are minimal changes proposed to the existing Highway’s vertical and horizontal geometry to ensure that existing flows can be maintained along their natural alignment. Sizing of the new roundabout culvert has been optimised to suit the required flood immunity criteria as well as maximise waterway area and to maintain existing flow paths as much as possible. The bioretention basin will detain and slow flow velocities and improve the water quality of flows discharging into the creek. Water Sensitive Urban Design (WSUD) elements have also been incorporated into the drainage design to reduce the impacts of peak flows and improve the water quality of additional runoff generated.

A WSUD assessment has been undertaken using the Model for Urban Stormwater Improvement Conceptualisation (MUSIC), a nationally recognised stormwater quality modelling package, in line with the requirements of the Scheme. Appendix J provides further details.

h) Not Applicable: There are no wetlands in the vicinity of project footprint.

i) Complies: It is considered the works are generally in accordance with the 'Wetlands and Waterways Works Manual' (DPIWE, 2003) and ‘Tasmanian Coastal Works Manual’ (DPIPWE, Page and Thorp, 2010). Further, the recommended mitigation strategies to be included (and enforced) through the CEMP will require works to generally comply with these manuals.

A2 Not Applicable: No works occurring in a Future Coastal Refugia Future Coastal Refugia Area. Area

A3 Not Applicable: No works occurring in a Potable Water Supply Potable Water Supply Area Area.

A4 Complies with Performance Criteria (P4) Development must involve no new stormwater point The proposal does not comply with Acceptable Solution A4 as the discharge into a development involves a discrete number of new discharge points. watercourse, wetland or lake. Assessment against P4:

P4 The proposed works within the Waterway and Coastal Protection Development involving a Area satisfy the requirements of P4. The below text assesses the new stormwater point proposal against the specific requirements of P1: discharge into a watercourse, wetland or a) Complies: The risk of erosion and sedimentation have been lake must satisfy all of the designed to be minimised. Appendix J (Hydraulics Report) states following: the project’s upgraded stormwater system involves new (a) risk of erosion and discharge points into Faggs Gully Creek. These new outlet sedimentation is minimised; points have been optimised to ensure that the additional (b) any impacts on natural discharge will be occurring in a location where scour and values likely to arise from embankment protection as a result of the highway box culvert erosion, sedimentation and extension is already being implemented. Locating these new runoff are mitigated and outlets in a location where scour protection is already proposed managed; helps mitigate the risk of further erosion and confines discharge (c) potential for significant points in one location so that natural stream bed conditions can adverse impact on natural be maintained downstream as much as possible. values is avoided. b) Complies: Soil, water and erosion management and controls will be a requirement of the construction contractor’s Construction Environmental Management Plan (CEMP). Re-vegetation works as part of the overall landscaping plan (refer to plan within Appendix C) will occur along the creek lines, as well as scour protection through rock pitching and batter stabilisation, as previously described.

c) Complies: Appendix G (Natural Values Assessment) considers the construction of new stormwater outlets is expected to have minimal additional or adverse effects on existing natural values along the creek, outside of what has already been assessed as lost through the construction footprint.

E11.7.2 Buildings and Not Applicable Works Dependent on a Coastal Location The proposal does not include Buildings and Works Dependent on a Coastal Location

9.5.11 E13.0 Historic Heritage Code

The purpose of the Code is to recognise and protect the historic cultural heritage significance of places, precincts, landscapes and areas of archaeological potential.

E13.2 Application of the Code

The Code is not relevant to the assessment. The Code applies to development involving land defined in this code as a Heritage Place or a Heritage Precinct – neither are within the project footprint.

9.5.12 E14.0 Scenic Landscapes Code

This code is not used in this Planning Scheme.

9.5.13 E15.0 Inundation Prone Areas Code

The purpose of this provision is to identify areas which are at risk of periodic or permanent inundation, manage development in areas at risk from periodic or permanent inundation, facilitate sustainable development of the coast in response to the impacts of climate change; manage development on the coast, preclude development that will affect flood flow or be affected by flood water, or change coastal dynamics in a way detrimental to development sites or other property and provide for appropriate development dependent on a coastal location.

The project is consistent with the purpose of the Code and complies with all relevant Applicable Standards (no Performance Criteria are relied upon). Clause E15.2 Application of this Code The Code applies to development on land in the Coastal Inundation Hazard Areas and development on land subject to risk of riverine flooding of 1% AEP or more.

The project footprint partially impacts land mapped as being at risk of riverine flooding of 1% AEP or more (within the western most portion of the project in Faggs Gully Creek).

The LIST’s has multiple flooding layers, there is some inconsistency between them:

As illustrated in Figure 9-10 the mapped ‘Coastal Inundation Hazard Area’ (shown as Aqua) is not impacting the project footprint (shown as purple).

Figure 9-10: Mapped ‘Coastal inundation hazard area’

However, as illustrated in Figure 9-11 the mapped ‘Coastal Inundation Hazard Bands 20161201’ (shown as red/orange/yellow) is impacting the site (shown as purple). This data set states this area is vulnerable to a 1% AEP storm event in 2050 and inundation from mean high tide by 2100.

Figure 9-11: Mapped ‘Coastal inundation hazard bands 20161201’

As the ‘Coastal Inundation Hazard Bands 20161201’ mapped layer partially impacts the site, the Code is applicable to the proposed works in that area only.

E15.6 Use Standards The Objective of the single use standard is to ensure that change of use involving habitable buildings and/or habitable rooms appropriately responds to inundation risk. This standard is not applicable as the proposal is limited to roadworks, no habitable buildings are proposed.

E15.7 Development Standards for Buildings and Works

The proposal complies each Applicable Standard pursuant to Clause E15.7 Development Standards. Table 9-16 provides an assessment against each applicable standard.

Table 9-16: Assessment against development standards for Inundation Prone Areas Code Acceptable Compliance Statement Solution/Performance Criteria E15.7.1 Coastal Not Applicable Inundation High Hazard Areas Clause E15.3 defines Coastal Inundation High Hazard Area as: an Objective: To ensure that area forecast to be subject to 0.2 m sea level rise from the Mean high risk from coastal High Tide by 2050 and a rounding up to the nearest highest 0.1 m. inundation is appropriately managed and takes into There is no such area in the project footprint. account the use of buildings. E15.7.2 Coastal Not Applicable Inundation Medium Hazard Areas Clause E15.3 defines Coastal Inundation Medium Hazard Area as: Objective: To ensure that an area forecast to be subject to a 1% AEP storm tide event in 2050 medium risk from coastal and 0.3 m free board, and a rounding up to the nearest highest 0.1 inundation is appropriately m. managed and takes into account the use of buildings. The LIST’s layer ‘Coastal Inundation Hazard Bands 20161201’, which partially impacts the site, has a hazard exposure of: this area is vulnerable to a 1% AEP storm event in 2050 and inundation from mean high tide by 2100.

The project does partially impact a Medium Hazard area, however A1, A2 and A3 are not applicable as they relate to impacts to habitable and other buildings. The proposed roadworks in the small section of Medium Hazard overlapping the project footprint pose no risk to or from inundation.

E15.7.3 Coastal Not Applicable Inundation Low Hazard Areas Clause E15.3 defines Coastal Inundation Low Hazard Area as: an Objective: To ensure that area forecast to be subject to inundation from a 1% AEP storm tide low risk from coastal event in 2100, the 0.3 m free board, and a rounding up to the inundation is appropriately nearest highest 0.1 m. managed and takes into account the use of There is no such area in the project footprint. buildings.

E15.7.4 Riverine Not Applicable Inundation Hazard Areas A1 A1, A2 and A3 relate to habitable buildings and other buildings. The A new habitable building proposed roadworks in the small section of ‘Riverine Inundation must have a floor level no Hazard Areas*’ overlapping the project footprint pose no risk to or lower than the 1% AEP from inundation. (100 yr ARI) storm event plus 300 mm. The small area of Riverine Inundation Hazard Area is considered to A2 be the same area as the ‘Coastal Inundation Medium Hazard Areas’ An extension to an existing habitable building A3 The total floor area of all non-habitable buildings, outbuildings and Class 10b buildings under the Building Code of Australia, on a site must be no more than 60 m2. E15.7.5 Riverine, Coastal Not Applicable Investigation Area, Low, Medium, High Inundation No works are proposed in these areas. Hazard Areas E15.7.6 Development Not Applicable Dependent on a Coastal Location There is no development dependant on a coastal location proposed.

9.5.14 E16.0 Coastal Erosion Hazard Code

The purpose of this Code is to facilitate sustainable development on coasts vulnerable to erosionidentify areas which are vulnerable to current and anticipated coastal erosion and provide for development responses that appropriately respond to coastal erosion hazard.

Appendix J comprises a ‘Hydraulics Report’, prepared by Jacobs in August 2020.

The project is consistent with the purpose of the Code and complies with all relevant Applicable Standards, the following Performance Criteria are relied upon: · P1 for E16.7.1 Buildings & Works in Coastal Erosion Hazard Area.

E16.2 Application

This Code is applicable as it involves development on land in the Coastal Erosion Hazard Area shown on the planning scheme maps. As illustrated in Figure 9-12, the western most section of works at the intersection of Dumbarton drive and Geilston Bay Road (shown as purple) are impacted by the Coastal Erosion Hazard Area (shown as brown hatch).

Figure 9-12: Works occurring in the mapped Coastal Erosion Hazard Area

E16.6 Use Standards

The Objective of the single use standard is to ensure that change of use involving habitable buildings and/or habitable rooms appropriately responds to erosion risk. This standard is not applicable as the proposal is limited to roadworks, no habitable buildings are proposed.

E16.7 Development Standards

The proposal complies each Applicable Standard pursuant to Clause E16.7 Development Standards. Table 9-17 provides an assessment against each applicable standard. Table 9-17: Assessment against development standards for Coastal Erosion Hazard Code

Acceptable Compliance Statement Solution/Performance Criteria E16.7.1 Buildings & Works P1: Meets Performance Criteria A1 No Acceptable Solution. There is no acceptable solution, therefore reliance on the P1 Performance Criteria is required. Buildings and works must satisfy all of the following: P1: Assessment (a) not increase the level of The works impact a very small fraction of the mapped Coastal risk to the life of the Erosion Hazard Area near the confluence of Faggs Gully Creek with users of the site or of the . Although the susceptibility of this coastal area to hazard for adjoining or erosion is unknown due to the uncertainty in underlying information, nearby properties or public the area is classed as an acceptable hazard zone (all soft sediment infrastructure; shores), and is landwards of likely and possible natural recession (b)erosion risk arising from limits (ListMap, 2020). wave runup, including impact and Given the existing coastal hazard level is acceptable and works are material suitability, may be occurring in the section mapped furthest upstream along the creek mitigated to an acceptable (landwards of likely recession limits), the risk to life and natural level through features posed by erosion hazard and erosion risk from wave run-up structural or design is said to be unchanged by the proposed works. Additionally, access methods used to avoid to and through the area and public foreshore will not be lost, damage to, or loss of, compromised or obstructed by any future coastal erosion in the buildings or works; works area. The works are also not being undertaken in a known (c)erosion risk is mitigated actively mobile landform. to an acceptable level through measures to modify Erosion mitigations for flows within Faggs Gully Creek, particularly the hazard where these either side of the new waterway crossing under the Dumbarton Drive measures are designed and / Geilston Bay Road roundabout, will be implemented by the certified by an engineer with developer. The measures being implemented will assist in reducing suitable experience in downstream erosion risk around the confluence of the creek with the coastal, civil and/or coastline, and have already been addressed in responses to hydraulic engineering; Development Standards for E11.0 Waterway and Coastal Protection (d) need for future Code, both through design features and implementation of a CEMP. remediation works is minimised; Based on the above, Performance Criteria P1 is satisfied. (e) health and safety of people is not placed at Refer to the Appendix J Hydraulics Report for further assessment of risk; the projects overall. (f) important natural features are adequately protected; (g)public foreshore access is not obstructed where the managing public authority requires it to continue to exist; (h)access to the site will not be lost or substantially compromised by expected future erosion whether on the proposed site or offsite; provision of a developer contribution for required (i) mitigation works consistent with any adopted Council Policy, prior to commencement of works; (j) not be located on an actively mobile landform.

E16.7.2 Development Not Applicable Dependent on a Coastal Location There is no development dependant on a coastal location proposed.

9.5.15 E17.0 Signs Code

The purpose of this provision is to regulate signs.

E17.4 Use or Development Exempt from this Code

The proposed works will include only Statutory Signs (signs relating to safety or guidance of Pedestrians and traffic), which are exempt from this Code pursuant to Clause E17.4.1.

9.5.16 E18.0 Wind and Solar Energy Code

This code applies to development for the purpose of electricity generation. This Code is not relevant to this proposal.

9.5.17 E19.0 Telecommunications Code

This code applies to development for telecommunication facilities. This Code is not relevant to this proposal.

9.5.18 E20.0 Acid Sulfate Soils Code

This code is not used in this Planning Scheme.

9.5.19 E21.0 Dispersive Soils Code

This code is not used in this Planning Scheme.

9.5.20 E23.0 On-Site Wastewater Management Code

This code applies to proposals relying on onsite management of domestic wastewater from residential use and wastewater similar to domestic wastewater from nonpresidential use. This Code is not relevant to this proposal. 9.5.21 E24.0 Public Art Code

The purpose of this provision is to implement the City’s Cultural Arts Plan, including the Clarence Public Art.

E24.2 Application of the Public Art Code

The only zone applicable to this Code where works are proposed is the Open Space Zone. The works occurring in this Code represent a small portion of the project, limited to the new section of Dumbarton Drive and the extension to Debomfords Lane.

Pursuant to Clause E24.4, development costing less than $1M is exempt from this Code. It is predicted the works occurring in the Open Space Zone will cost less than $1M. Therefore the proposal is exempt from assessment under this Code. This issue was discussed with Council at the pre-application meeting on 16 January 2020, minutes can be circulated to Council on request.

9.5.22 E25.0 Airport Buffer Code

This Code applies to all applications for use or development within the Airport Buffer Code. This Code is not relevant to this proposal.

9.5.23 E26.0 Hotel Industries Code

The purpose of this Code is to provide for hotel industries, while protecting the amenity of adjacent areas. This Code is not relevant to this proposal.

9.5.24 E27.0 Natural Assets Code

The purpose of this code is to protect and conserve threatened native flora and fauna and other native vegetation recognised as locally significant.

Appendix G comprises a Natural Values Assessment, prepared by Jacobs in August 2020.

The project is consistent with the purpose of the Code and complies with all relevant Applicable Standards (no Performance Criteria are relied upon).

E27.2 Application of the Code

This code applies to all use or development on land wholly or partially within a Biodiversity Protection Area (BPA) shown on the planning scheme maps.

Only a small section of the project footprint on the western side of the Highway (to the north-east of the proposed cul-de-sac at Geilston Bay Road) impacts the BPA. As illustrated in Figure 9-13, at this location the mapped BPA area partially overlaps the Highway road reserve (the overlapping area is highlighted in pink). Figure 9-13: location of mapped BPA within project footprint

*The Code is not applicable to the majority of the proposed development footprint, therefore impacts to ecology in areas outside of the mapped BPA are not assessable under this Code. These impacts are regulated and assessed under legislation other than the LUPA Act. Refer to Appendix G for details of ecology legislation applicable to this project.

E27.6 Impact Classification

The proposed works applicable to the Code are classified as ‘Negligible’ pursuant to the Impact Classification at Clause E27.6. Table 9-18 provides assessment against the Negligible criteria.

Table 9-18: Assessment of Negligible Impact criteria

Negligible Impact Criteria Compliance Statement The impact of works within the BPA area meet the criteria for E27.6 Impact ‘Negligible’: Classification a) No priority vegetation will be cleared a) There is no priority vegetation being removed. As discussed in b) The construction will not Appendix G, where the BPA overlaps the Construction Footprint, involve blasting or only FUR (Urban areas) and FPE (Permanent easements) significant noise and vegetation communities are located, which are classed as vibration impacts modified habitats and not native vegetation. Appendix G provides c) Is not associated with details of types of vegetation within and surrounding the site. any future subdivision b) The proposed construction works will not require any blasting. Noise and vibration from construction works will meet the requirements of the Construction Environmental Management Plan and general construction guidelines.

c) There are no known future subdivisions proposed in the BPA areas within the project footprint.

E27.7 Use Standards

There is no use standard criteria for a negligible Impact, therefore assessment for use for this Code is not applicable.

E27.8 Development Standards The proposal complies with each Applicable Standard pursuant to Clause E27.8 Development Standards.

Table 9-19 provides an assessment against each applicable standard.

TABLE 9-19: Assessment against development standards for Natural Assets Code

Acceptable Compliance Statement Solution/Performance Criteria Not Applicable For a Major impact Impact is classified as Negligible.

Not Applicable For a Minor impact Impact is classified as Negligible.

For a Negligible impact Meets Acceptable Solution A1 Where the BPA overlaps the Construction Footprint, the only Maximum clearance of vegetation impacted is classed as modified habitats rather than native 2500m2 of native vegetation vegetation. Therefore no native vegetation within the BPA is being cleared.

Appendix G provides further details of vegetation classifications and impacts.

Part F Specific Area Plans

No Specific Area Plans apply to the proposed works. Tasmanian Heritage Register The project footprint does not include a place listed on the Tasmanian Heritage Register (THR).

State Policies

11.1.1 State Policy on Water Quality Management 1997 The State Policy on Water Quality Management provides a framework for the development of ambient water quality objectives and the management and regulation of sources of emissions to surface waters (including coastal waters) and groundwater. Appendix J (Hydraulics Report) provides a detailed assessment of the proposed works in relation to water quality, discharge, drainage and stormwater. The Report identifies: · Stormwater: The Highway upgrade design intent was to utilise the existing stormwater system and discharge points as much as possible. However, as the Highway upgrade will involve a large increase in impervious area due to duplication of the Highway and addition of new local roads, the adequacy of the existing stormwater capture and conveyance system required supplementing with additional infrastructure. New stormwater infrastructure will be introduced to assist in capturing flows from these overland flow paths, in particular, grated strip drains in the central median. Any new additions to the stormwater network, including kerbs and channels, pits and pipes, swales and drains, have been designed and graded to capture runoff from the highway and local roads, and discharged by gravity into public stormwater infrastructure, which includes existing systems and/or watercourses. Kerb and channel has been incorporated alongside the Highway in a number of locations, and along the new local roads to minimise impacts on adjacent land and reduce the amount of earthworks required in cutting drains. Due to the introduction of these hard drainage features, use of Water Sensitive Urban Design (WSUD) principles has been considered in the design to reduce impacts of increased catchment imperviousness on peak flows and water quality. · Discharge to waterways: New local road infrastructure west of the highway and on the southern side of Faggs Gully Creek require a new discharge point(s) to the creek to be introduced to avoid a lengthy trunk drainage system connecting to an existing outlet. New discharge points have been proposed near the downstream extension of the twin box culvert under the highway where rock protection will be provided to prevent scour at the outlet. Locating new discharge outlets in a location where scour protection is already proposed helps mitigate the risk of further erosion and confines discharge points in one location so that natural stream bed conditions can be maintained downstream as much as possible. Although there may be an opportunity to further rationalise discharge points in the Detailed Design phase of the project, most of the new outlet points comprise relatively small catchments. · Water quality targets: Water quality target reductions in line with the State Stormwater Strategy 2010 have been adopted for the project as follows: o 80% reduction in the annual average load of Total Suspended Solid (TSS) o 45% reduction in the annual average load of Total Phosphorus (TP) o 45% reduction in the annual average load of Total Nitrogen (TN) · Bioretention Basin: The outlet with the largest catchment has also been designed to incorporate a bioretention basin upstream, which will detain and slow flow velocities and improve the water quality of flows discharging into the creek. · Environmental Management Plan: Construction of the road will be carried out in accordance with an environmental management plan and/or CEMP consistent with the relevant State Growth specifications to prevent erosion and the pollution of streams and waterways by runoff from sites of road construction and maintenance. As recommended above in the report, it is proposed that any permit issued should include a condition require a CEMP to have specific controls such as that there is negligible change in water quality of any waterway caused by the proposed works

The proposal is considered to be consistent with the State Policy. Conclusion

This report supports a development application by the Department of State Growth to Clarence Council for the proposed upgrade of the East Derwent Highway.

The project will:

· make the highway wider to have four lanes of traffic – two lanes in each direction · build a new concrete raised central median and safety barrier to reduce the risk of crashes · install new traffic lights at the upgraded intersection at Clinton Road and Geilston Bay Road · build safer access off the highway to Araluen Street, Lindisfarne North Primary School and Geilston Bay Recreation Area · add an off-road shared path and on-road cycling lanes, and · improve the left-turn pocket at the Sugarloaf Road intersection.

The purpose of this report is to assess the suitability of the proposal against Council’s Planning Scheme.

The proposal is assessed to comply with the relevant acceptable solutions and performance criteria under the Zones and Codes impacted. The proposal is therefore assessed to comply with the requirements of the Scheme and should be approved. Department of State Growth GPO Box 536 Hobart TAS 7001 Australia Phone: 1800 030 688 Email: [email protected] Web: www.stategrowth.tas.gov.au