Part 1 - Palmerston North City Council

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gemconsulting Before any works start, Stockpile Site 1 and the surrounding area will be fenced off to prevent public access to the site. Access will be maintained along the Esplanade Walkway between the river and golf course. It is noted that part of the Esplanade Walkway is currently shared with the access track between Albert Street and the proposed stockpile area. To address this, prior to any works commencing on the site a Health and Safety plan will be developed for the works and site that will address the shared access arrangement and seek to eliminate, isolate or minimise risks and hazards associated with this, as is required under the Health and Safety in Employment Act. Effects on spiritual and cultural values The works are proposed to occur within the current active channel of the river and on land where the river has flowed in the past. It is unlikely that any archaeological sites exist within the active river channel or past channels as any such sites would most likely have been washed away by the river. No archaeological sites are known to exist within the subject site itself, however given the location of the nearby Te Motu o Poutoa pa site it is possible that archaeological sites or remains may be discovered at the base of the cliff where debris has slipped from above. During the PNCC Plan Change 2 process a Protocol for the Accidental Discovery of Archaeological Sites was developed for the works at the site. This protocol is attached to this report as Appendix F and outlines the process to be followed in the event that an archaeological site is discovered including the cessation of works. It is proposed to adhere to this protocol should any site or remains be discovered at the work site. It is noted that an archaeological site T24/22 is recorded with the New Zealand Archaeological Association as being located near the Esplanade Walkway between the site and the Manawatu Golf Course. While not within the subject site an authority from the New Zealand Historic Places Trust is being sought for the works near the site separately to this application. Traffic Effects It is expected that up to 15 truck and trailer loads of rock per day will be delivered to the site. In addition, transporters will deliver the necessary machinery to the site as required throughout the works and light vehicles will visit the site on a daily basis with various personal such as machinery operators, engineers, MWRC staff, and other such persons required to carry out or oversee the works. Access to the site will be from Albert Street. Contracts for the rock supply or construction works have not been let at this stage so there is some uncertainty as to where most of the traffic will come from. However, if sourced from the Aokautere side of the river then heavy vehicles will travel across the Fitzherbert Bridge, along Te Awe Awe Street and Albert Street to the site. If rock is sourced from the city side of the river then it is likely that heavy vehicles will travel along Main and Albert Streets or alternatively from Fitzherbert Avenue, Te Awe Awe Street and Albert Street to the site. It is anticipated that the roading network will accommodate the expected level of traffic with no difficulty. One of the benefits of sourcing as much material as possible for the proposed works from the river itself, is that it minimises traffic movements and any associated short term effects that this causes. Effects from Noise Noise will primarily arise from machinery working, from trucks unloading rock and from vehicles travelling to and from the site. Probably the most significant source of noise will be from the unloading of rock with noise generated as the rock slides from the truck trays. As stated, there will be up to 15 truck and trailer movements for unloading rock at the site per day. This noise will be mitigated by limiting the hours that trucks can deliver rock to certain hours, as outlined below, by the distance between the stockpile area and the nearest dwellings (approximately 500 metres) and by the mass of the existing stopbanks along the river providing a physical barrier between the stockpile area and any dwellings. Hours of truck movements: Monday to Friday: 7:00am to 7:00pm Saturday: 7:30am to 1:30pm 18
gemconsulting Other sources of noise will be from the operation of the various machinery required to carry out the works. This is likely to consist of excavators, motor scrapers and off‐road trucks. Any machinery will be required to be in good order and maintained and will have appropriate mufflers fitted. This noise source is not expected to be any different to other working machinery in the area, e.g. excavators carrying out river maintenance works or stopbank works as are currently taking place in the locality, and given the distances between the site and the nearest dwellings it is expected to comply with the District Plan limits. It is expected that working hours for the river works to be from 7:00am to 7:00pm 7 days a week and including public holidays. This is required to maximise the low flow conditions over the summer period as they are available. Without this flexibility it is possible that the works will not be completed within the one summer resulting in further adverse effects associated with working in higher flow river conditions. It is noted that the recent upgrades of the stopbanks adjacent to the subject area required more trucks per day and had machinery working much closer to dwellings that the proposed works and that there has been little concern regarding noise with no complaints or negative comments known to have been received. Vehicles, especially trucks, entering and leaving the site may create some noise, primarily engine noise and tailgates and decks rattling as they drive past. This is unlikely to be an issue on the formed roads as they are sealed and in good condition. The District Plan allows for use of the roading network and also provides an exemption to noise from vehicles being driven on roads (see Rule 6.2.6.2 Exclusions from Noise Control Rules). The access track from the end of Albert Street to the stockpile area is not a road in terms of the District Plan but it is sealed for most of its length. Noise will be mitigated by keeping the access track in good condition. Trucks will be travelling at low speed along this track thereby keeping noise and disturbance to a minimum. Effects from Dust The proposed works will generally be carried out in or near a water environment so any dust from the works will be minimal. The access road to the site is largely sealed. If dusty conditions arise a water cart will be employed as necessary to dampen down the problem areas. Vegetation Clearance Vegetation clearance will be required to allow for the access track on the left bank of the river, the realignment of the Mangaotane Stream and for Stock Pile Sites 2 and 3. The existing vegetation consists of willows, poplars and other weedy species and as such is not of high value, ecologically or otherwise. It is proposed to redistribute soil over Stockpile Site 2 and to replant it with trees once the works are complete. Stockpile Site 3 will be left with approximately 300 tonne of rock on it for future maintenance use. It is proposed to top soil and grass all access tracks and it is expected that they will soon revegetate with more substantial vegetation within a short time. 6.2 Effects of the Permanent Works Effects on water quality Once the works are completed there will be an improvement in water quality due to the cessation of sediment discharges to the Manawatu River resulting from the erosion of the cliff. It is estimated that up to 20,000m 3 of sediment per year is currently entering the river from the cliff. Such erosion will cease with the completion of the works and the stabilisation of the cliff. The extent and nature of the disturbance to the river bed The finished works will consist of the snub groyne, the rock lining bed armouring and the ford. The river will have been permanently realigned so that it is located closer to the right bank of the river. The Mangaotane Stream will enter the river slightly upstream of its current location, and the unnamed tributary will be extended slightly to enter the river via a gap in the top part of the rock lining. Once the works are complete there will be few further disturbances to the bed of the river. As stated the rock lining is designed to be self‐healing so if it is undermined, rocks will slip into place filling the gap and 19
Page 1 and 2: good earth matters gemconsulting Ma
Page 3: APPLICATION FOR RESOURCE CONSENT Se
Page 7 and 8: gemconsulting TABLE OF CONTENTS 1 I
Page 9 and 10: gemconsulting 1 INTRODUCTION The Ma
Page 11 and 12: gemconsulting Some 400 metres of th
Page 13 and 14: gemconsulting take up to 150 workin
Page 15 and 16: gemconsulting 3.3 Monitoring and Ma
Page 17 and 18: gemconsulting 5 REGULATORY FRAMEWOR
Page 19 and 20: gemconsulting beaches which specifi
Page 21 and 22: gemconsulting Flood Protection Zone
Page 23 and 24: gemconsulting 5.4 Objectives and Po
Page 25: gemconsulting The extent and nature
Page 29 and 30: gemconsulting This natural characte
Page 31 and 32: gemconsulting It is considered that
Page 33 and 34: gemconsulting Policy 16.2 requires
Page 35 and 36: gemconsulting existing stop banks o
Page 37 and 38: gemconsulting Policy 8 This policy
Page 39 and 40: gemconsulting fish, will ensure tha
Page 41 and 42: gemconsulting The Attractive Commun
Page 43 and 44: gemconsulting The Mangaotane Stream
Page 45 and 46: gemconsulting 8 RESOURCE MANAGEMENT
Page 47 and 48: gemconsulting the significance
Page 49: gemconsulting Appendix A LOCATION P
Page 53: FIGURE B: LOCAL PARKS, RESERVES & W
Page 57: FIGURE D: LAND HOLDINGS WHERE WORKS

Part 1 - Palmerston North City Council

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