RFT23/24-008 Capella Reserve Renewal

Summary and scope

Scope & Specifications Scope of works includes but is not limited to: Site Establishment: • Site establishment to the satisfaction of PCC Project Supervisor; • Tree protection as specified • Sediment control as required - Successful contract to submit an environmental management plan for our review and sign off – refer To Appendix 10 Demolition • Demolition and removal of existing as documented. Earthworks including • Cut and fill as per indicated. Stockpiling of topsoils & subsoils separately for later use. Grading to allow for finished levels for pavements, edges & turf area. Ripping, prior to placing of stockpiled soils. Services & Drainage including supply & install of: • Drainage behind retaining walls and infiltration pit to be provided as documented, Soil works, including: • 30mm turf topsoil over ripped sub-grade in prep for turf • Site topsoil as documented for all planting beds (PLANTING WORKS BY OTHERS) Surfacing – supply & install of: • Concrete pavements & edges as documented • Turf and underlay • Mulch over site topsoil for planting by others Retaining walls & Edging – supply & install of: • Retaining walls as documented • Concrete edging as documented • Corten straight curve edging as documented • retaining as documented Fixtures & Furniture – supply & install of: • Park shelter & accessible picnic setting - Supplier TBC • Park seats, drinking fountain, removable bollard - Supplier TBC • Sandstone blocks and boulders as specified EXISTING SITE CONDITIONS Contractors shall be responsible for the investigation and location of the underground services that may affect their work and take precautions against damage to all footpaths, roadways, drainage pits, cables, pipelines etc and make good any damage. Dial Before You Dig information must be obtained as a check prior to commencement of construction. Construction should only proceed if: • Cable location information has been obtained via “1100 - Dial Before You Dig”; • Service location plans are on site at all times; • Information about underground cables has been supplied to construction workers; The Contractor shall avoid interference with or damage to property on or adjacent to the site and shall provide temporary protection for and shall repair and reinstate any damaged property, including concrete footpaths, Trees, Turf, services, storm water and survey infrastructure. SITE ESTABLISHMENT Contractor is responsible for the establishment of the site including but not limited to temporary fencing and erosion control as required. Temporary fencing to be minimum 1800mm chain mesh builders compound fence with lockable gate to be installed to the worksite perimeter to the satisfaction of PCC Project Supervisor. HOLD POINTS Hold points must be adhered to. Contact Council's Project Supervisor for the project. Give not less than 48 hours' notice so that inspections may be made of the following; • Inspection of Tree Protection Measures (Refer Plan 1000 for Tree Protection Zones) • Setout of centreline of path & retaining walls prior to excavation & formwork • Completion of all Setout- pavement areas, edgings, retaining walls and fixtures. • Prepared formwork for concrete edging prior to pouring • Prepared formwork for concrete pavement prior to pouring • Drainage behind retaining walls and excavated infiltration pit prior to any backfill. • Finish of grades to smooth & uniform surfaces and • Cultivation/ ripping of ground prior to laying fill & topsoil for planting and turf areas COMPLETION After completion of works, remove all construction debris from site and leave the site in a finished condition. Site shall be free from debris with all damaged surfaces & assets rectified before site fencing is removed. DEFECTS LIABILITY PERIOD The Contractor shall repair and reinstate at its own cost all defects caused by poor workmanship or inferior quality material, including cracking and settlement, which become evident during the Defects Liability Period. SITE PREPARATION TREE PROTECTION Trees to be retained near the work area must be protected in accordance with AS44970-2009 Protection of Trees on Development Sites. Refer to drawing Sheet1000 and Arborists Report for Tree Protection Zones. During pre-construction works, a Tree Protection Zone (TPZ) barrier consisting of protective bunting fencing must be erected around existing trees adjacent to any proposed works and are to be protected and retained on site. Tree protection zones (TPZ) are to be 12 times the trunk diameter at breast height (this may be reduced after consultation with Council's Tree Management Officer or Landscape Architect). The TPZ must be erected and approved by Council's Project Supervisor, prior to construction beginning. They must be erected so that that they are not easily toppled, broken or removed. If the TPZ fence is inadvertently damaged or removed then it must be properly repaired before any works on the site continue. The TPZ must remain erected and intact throughout the construction period (until all works have been completed). Where concrete path works are proposed within TPZ areas, cutting ground is to be minimised. Concrete pavement is to be placed on grade where possible or on fill where there is a requirement to meet accessibility requirements gradients to path works. Protective measures for existing trees include: • Minimising machinery movement over surfaces adjacent to existing trees; • Keeping deleterious material including oil, petrol, cement, bitumen, spillage from washing operations and similar contaminants clear of trees including their root systems; • No stockpiling of materials or vehicle parking over root systems. All existing trees around and adjacent to the site shall be adequately protected from damage. During excavation works tree roots in excess of 50mm diameter shall not be cut. Where necessary tree roots shall be saw-cut back to a clean cut by a suitably qualified Cert 111 Arborist or Horticulturist. Do not treat the wound. DEMOLITION Remove concrete path slab in areas as indicated on Sheet 1000. Ensure to sawcut as per the radius of the proposed new pavement circle, as indicated on the plans. Dispose of legally off site. WEED ERADICATION, REMOVAL OF MULCH, GRASSES & TURF IN PAVEMENT & GARDEN BED AREAS Chemical sprays shall be limited to non-residual glyphosate herbicide in any of its registered formulae, at manufacturers recommended maximum rate & method. Ensure spraying does not occur on windy days. All weed growth shall be removed from the site. Continue eradication throughout the course of the works and during the plant establishment period. EARTHWORKS Carry out earthworks to sub-grades as required to meet the final levels, any proposed deviation from the design levels shall be submitted to the Project Supervisor and Landscape architect for approval. Excavated material is to be used on site where possible, topsoil shall be stripped at the beginning of the project and stockpiled for re-instatement at project completion. Subsoils & topsoils are to be stockpiled separately, in locations as noted on the plans, Sheet 3000. Use of excavated material is to be signed off by PCC Project Supervisor. Prior to placing site subsoil in proposed garden bed area on embankment behind retaining wall 'SSR2', and before placing topsoils in any other garden bed areas rip existing ground 200mm deep to key in soil layers. Where ripping of soil is to occur within the drip zone of any tree, radial ripping outward from the tree, should be perform to limit damage to tree roots. Soils shall be blended on site and capped with 200mm stockpiled topsoil from site. Location and levels of any excess fill shall be confirmed on site with PCC Landscape Architect. Resultant landform is to not adversely effect site drainage. Turf areas are to be ripped 200mm deep, capped with 30mm turf topsoil as per the details & graded to a smooth, free draining, even surface ready for turfing. Allow underlay to finish 20mm below finished path levels to allow for turf to finish flush against paths. Other garden bed areas are to have 200mm site topsoil, graded to drain freely. Allow 75mm above for mulch to meet adjacent levels. SURFACES CONCRETE PATHS & SLAB Concrete pavement is to sit flush with adjoining levels, excavate as required to ensure flush finish with adjoining levels. Cross fall of slab is to follow existing grade but is not to exceed 1:40. All new pavement is to have a broom finish perpendicular to the direction of travel. Concrete slab thickness and reinforcement to be as noted on plans. Width of footpaths, set out of pavement areas and cross fall directions are to be as noted on the plans. The extent of the concrete pour with respect to prevailing weather conditions shall be discussed with Project Supervisor. Finished pavement levels must ensure no trip hazards & where they adjoin existing surfaces and must be adjusted prior to pouring the concrete. Tolerance +/ - 5mm. Install 10mm expansion joints to full depth of concrete at 6m centers and adjoining rigid pavements, kerbs, concrete edging etc; control joints to be centred between expansion joints. Control joint 4mm wide to 25mm depth, saw cut within 48hrs. Ensure expansion joints between concrete edges and adjacent pavements. Refer Detail 01, Sheet 6000 Backfilling against new pathways shall be done using topsoil from site if approved Kerb ramp Ensure kerb ramp is built as per Detail 5, Sheet 6000 to be signed off for accessibility requirements. Coloured concrete Concrete shall be integrally coloured with Concrete Colour Systems (CCS) or similar pigment concentrate. Add at rates advised by manufacturer to achieve desired colour. Grey Cement shall be used as the base for tinted concrete. CONCRETE COLOUR TO BE CCS Colour systems 'MOCCHACCHINO'. MORTAR FOR JOINTS BETWEEN SANDSTONE BLOCKS ON CURVED RETAINING WALLS ONLY Provide mortared joints to edges between sandstone blockS where gaps are larger than 8mm. Use clean fine sand & Portland cement Type A in a 4:1 ratio. Colour is to match stone. EDGING CONCRETE EDGE Provide 200mm wide concrete edging in locations as per plans. Edging to finish flush with adjoining surfaces. Dimensions: 200W x 150D Fillet: 5mm fillet edges Strength: N20 Reinforcement: 2 X N12 Bar centrally located, ensure 50mm cover Base: 50mm compacted DGB20 ENSURE - Control joints: at 2m/ apex of curves Expansion: joints at 6m CORTEN STRAIGHTCURVE EDGING Provide Straight curve Corten edging or approved equivalent to edges, 100mm or 150mm as nominated on the plans. Refer Detail 04, Sheet 6000. Corten edging to sit flush against any adjacent hard surfaces. SANDSTONE BLOCKS TO PATH EDGE Provide sandstone blocks 1m x .5m x .5m to both sides of concrete path as per plans. Sandstone blocks to be 'A' grade blocks. Contractor to round off any sharp edges or points which have a radius over 5mm. Blocks are to be laid on a compacted ground and as per Detail 05, Sheet 6001. RETAINING WALLS SANDSTONE BLOCK RETAINING WALLS Retaining Walls generally: • All sandstone blocks are to be sound sandstone - 'Grade A' Blocks are to be laid on compacted level surface as per Detail 05, Sheet 6001. Joints - Blocks are to be oriented to minimise gaps between adjacent blocks. Place blocks as close to each other as possible. Blocks shall be placed in such a manner that they are: • Stable, • Edges are butted. Face of adjacent blocks to be flush. • Tops of adjacent blocks sit flush Curved Retaining Walls: • Sandstone blocks are to be: 1000mm x 500mm x 500mm • To achieve radius of curved walls, 1000mm blocks are to have angle cuts as per Detail 03, Sheet 6001. End blocks to wall are to have only one end angle cut. Blocks are to have sawn or split face top and bottom. The face is to be bolstered/rockface finish. Top and front faces of blocks are to sit flush with adjacent blocks. Where gaps are larger than 8mm provide mortared joints as per this specification, 3.2 Mortar for Joints Straight Retaining Wall: Sandstone blocks are to be: 2000mm x 500mm x 500mm & 1000mm x 500mm x 500mm. Where wall changes direction, use 1m blocks & angle so adjacent ends sit flush). Tops of adjacent blocks sit flush with adjacent blocks. ANTI GRAFFITI COATING FOR ALL SANDSTONE BLOCKS AND RETAINING WALLS Anti-graffiti coating to be applied after cleaning of blocks. Anti-graffiti coating is not to be a gloss coat. WATER SUPPLY LINE & DRAINAGE Water supply to Bubbler Trench & supply & install water supply line for drinking fountain, connect to water meter & drinking fountain. Ensure all trenching, pipework, connection and existing meter comply with all relevant Service Authority and Australian Standards; supply for potable water. Drainage Line Provide socked subsoil drains and agricultural lines to intercept groundwater seepage and prevent water build-up behind retaining walls. Subsoil drains are to be installed as per locations on the plans. Connect subsoil drain to infiltration pit where shown on the drawings. Jointing: General: At junctions of subsoil pipes, provide tees, couplings or adaptors to AS 2439.1. Pipe underlay (bedding) General: Bed piping on a continuous underlay of bedding material, minimum 75 mm, maximum 150 mm thick after compaction. Grade the underlay evenly to the gradient of the pipeline. Subsoil pipes shall have a minimum grade of 1%. Pipe surrounds: General: Place the material in the pipe surround in layers maximum 200 mm loose thickness, and compact without damaging or displacing the piping. All subsoil drains shall be installed such that they are protected and remain fully functional at completion of works. Contractor to use PVC or alternative piping as required to ensure system remains intact and functional at completion of works and with anticipated ongoing use. Provide geotextile to drainage layer. Wrap and overlap 300mm Infiltration pit 600 x 600 x 600 infiltration pit to be installed as per plans and filled with free-draining aggregate. Fill material to be approved by superintendent prior to installation. Refer Detail 04 Sheet 6001. FIXTURES Refer to fixtures table within documentation. It's the contractor's responsibility to liaise with all suppliers to ensure fixtures are installed correctly and to AS 4685. All specified products may be substituted for an approved equal. All substitutions shall be submitted in writing to Council's Project Supervisor for review. Shelter 1 x 5m x 4m cantilevered shelter. Supplied by TBC. Ensure to lay slab for shelter as per requirements for footings for the shelter. Ensure footings are not visible in coloured concrete Posts: - Colour 'Monument'. Roof: - Colour 'Shale grey'. Furniture Setout for all furniture confirmed with Councils Landscape architect prior to final install. Seats: - 4 x 2.0m Seat with back & armrests, surface mounted, Supplier TBC. Bin: - 1 x Enclosure 240L. Fixing: Surface mounted. Supplier TBC. Setout central in slab for bin & with bin opening facing the footpath. Picnic Setting: - 1 x accessible picnic setting, surface mounted, supplier TBC. Setout of table in shelter and on coloured concrete circle as per Detail 01 Sheet 6002. Bollards: - 1 x Locking Removable Bollard & 2 x bollards. Supplier TBC Drinking Fountain: - Drinking Fountain DDA compliant supplier TBC, installed as per manufacturers recommendations. Rock boulders Rock boulders shall be naturally shaped boulders with rough natural edges. Size: bobcat sized = approx. 700 x 700 x 450mm. Boulders shall not be gouged or marked by excavators or bobcat buckets. Locally bench site soil to accept boulders. Provide a uniform, compacted bed of roadbase. Compact to 95% standard density. Boulders shall be positioned so that they bear evenly on the benched areas (no rocking shall be accepted). No mortar shall be used in the placement of stone. Sharp arises or protrusions from boulders shall be smoothed off so that injury to children is avoided. 3mm arrises should be provided throughout. Refer Detail 02, Sheet 6001. Setout to be finalised with Councils Landscape architect on site. SOILWORKS Scope of Soilworks includes: • New turf areas as per plans and adjacent to/as backfill for all new path works & edges and in all "make good" areas. • All soil works associated with garden bed planting. • Note: All tree and ground cover planting works 'By Others'. Soils All soils are to conform to AS 4419 'Soils for landscaping & garden use'. Imported soils are to be free of any material toxic to plant growth, stumps, roots, clay lumps or any other extraneous material and free from noxious or troublesome weeds. Turf underlay to areas noted as 'TF1' on Plan 01, Sheet 4002 shall be an imported, friable, sandy loam of approved quality, comprising 50% washed river sand, 20% black soil, 30% composted organics. The pH value shall be in the range of 5.5 to 7.0. Use only as instructed by Superintendent (dependent on quality of site topsoil). Confirm source of product and composition for approval. Turf underlay to all other areas, use only as instructed by Superintendent (dependent on quality of site topsoil). - backfill to path edges to be site topsoil Garden Bed areas: Following ripping of subgrade, 200mm, lay 200mm of site topsoil. Allow 75mm for mulch on top to finish flush with adjacent levels. TURF SCOPE • New turf areas adjacent to/as backfill for all new path works & edges and in all "make good" areas shall be Kikuyu. It shall be weed & disease free. • New turf to areas noted as 'TF1' on Plan 1, Sheet 4002 shall be 'Tahoma 31'. Cultivation Cultivate new turf areas to a depth of 200mm and parallel to contours. Apply gypsum at a rate of 300g/sq.m and water in well. Place turf underlay to a depth of 30mm thick to areas to be turfed. Rake evenly to a fine tilth. Apply fertiliser to Manufacturers recommendation and incorporate thoroughly into the top surface of the turf underlay. Allow turf underlay to finish 30mm below finished path levels to allow turf to finish flush against adjacent paths and existing grass finished level. Laying of Turf Obtain turf from an approved grower of cultivated turf. Furnish a warranty from the grower that the turf is free from weeds and other foreign matter. Deliver turf on site within 24 hours of being cut, and lay within 36 hours of being cut. Prevent it from drying out between cutting and laying. During handling operations and whilst turf is in storage on site it shall be placed in layers with grass to grass and roots to roots. The stacks shall be sprayed with water and covered with moist hessian to prevent it from drying out. Dampen dry soil and lay turf along the land contours with staggered, close butted joints, and so that the finished turf surface is flush, after tamping, with adjacent finished surfaces of paving and the like. As soon as practicable after laying roll the turf with a roller weighing not more than 90kg/m width to ensure contact with topsoil. Watering Water immediately after laying until the topsoil is moistened to its full depth. Maintain moisture to this depth. Establishment General: Maintain turfed areas until there is a dense continuous sward of healthy grass over the whole turfed area, evenly green and of a consistent height. Watering: Water as necessary to keep soil moist to a depth of 100mm Protection: Protect newly turfed areas against traffic until grass is established. Making Good: Lift failed turf and relay with new turf. Fertilising: Two weeks after laying, fertilise turf with the following soil conditioner. Soil conditioner: N:P:K ratio of 9.2:4.0:4.9 at the rate specified by the manufacturer and shall be of a horticultural grade, free from lumps and toxic materials from an approved source. Topdressing: When the turf is established, lightly top dress to a depth of 10mm with top dress material approved by Project Supervisor. Rub the dressing well into the joints and correct any unevenness of surface. Mowing: When the turf is established, mow at regular intervals to maintain an average height of 50mm. Weeding: Remove weeds that emerge in the turfed area. MULCH Use site mulch that is stockpiled on site. If there are insufficient quantities, provide mulch equivalent to ANL's 'Forest Blend'. Ensure mulch is clean 20-40mm chip made from recycled & composted Grade A wood waste without soil, stones etc. shall conform to AS 4454 & be 100% recycled garden waste. It shall be free from soil, weed growth, green & other deleterious matter. Mulch is to have no more than 5% fines. Work Health and Safety Management including: Site induction with Council and ongoing auditing as required Demonstrate to Penrith City Council whenever requested that requirements of this contract and statutory requirements for Work Health and Safety are being met Provide Site Shed, fencing and Signage Comply with all statutory requirements for Work Health and Safety requirements and ensure each of its employees and sub-contractors comply in a like manner Registration with Conserve refer to section B.7.2 Conserve of this document Provide, maintain and produce when requested specific documentation and record keeping relating to Work Health and Safety of site including: • Site Amenities Plan Located on site • Safe Work Method Statements (SWMS) for High to Medium Risk works • WHS Site Management Plan • Hazardous Chemical Register • Plant and Electrical Registers • Training documentation • Incident and accident documentation • Management Meeting Minutes – where Safety is an agenda item • Toolbox Meeting Minutes • Hazard Reports and Corrective Actions • Risk Identification and site inspections • Monitoring of SWMS documentation • First aid facilities / kits Handover Documents – required to be submitted to Council. Work as executed drawings Compliance certificates & warranties Certificate of Compliance for Plumbing and Drainage Work