Multi-year Stormwater Renewals

Overview Berri Barmera Council is seeking suitably qualified and experienced contractors to undertake stormwater renewal works across various locations within the Council area under a multi-year contract arrangement. About Following ongoing condition assessments, inspections and maintenance activities undertaken across Council's stormwater drainage network, a number of stormwater assets have been identified as requiring renewal, rehabilitation and remediation to maintain the network's structural integrity, hydraulic performance and serviceability. Purpose The purpose of these works is to restore and extend the operational life of Council's stormwater network, reduce the risk of asset failure, improve hydraulic performance, and ensure the ongoing provision of safe and reliable stormwater management services to the community. Scope The works will involve the repair, rehabilitation, relining, replacement and associated construction activities relating to reinforced concrete stormwater pipes, pits, headwalls and other stormwater infrastructure assets as identified by Council throughout the contract period. The Contractor shall provide all labour, materials, equipment, plant, traffic management, environmental controls, testing and supervision necessary to complete the works. The scope includes: CCTV investigation and condition verification, including detailed CCTV inspections, condition assessments, defect coding, reporting of previously unidentified defects, verification of dimensions, pipe lengths and connectivity, and confirmation of suitability for rehabilitation techniques Drain cleaning, including high-pressure water cleaning, mechanical cleaning, vacuum extraction, root cutting, desilting of pipelines and pits, and removal and lawful disposal of all waste materials Robotic cutting and preparation, including robotic removal of tree roots, intrusion removal, protruding connection removal, obstruction removal, and pipe preparation prior to relining UV cured-in-place pipe (CIPP) lining, including supply and installation of UV cured liners, pipe cleaning and preparation, bypass pumping if required, host pipe inspection, installation and curing of liner, reinstatement of service connections, post-installation CCTV inspection, and warranty documentation, designed to provide fully structural or semi-structural rehabilitation as specified by Council's Superintendent Localised patch relining of isolated defects including cracks, joint failures, minor deformation, root intrusion points, and localised infiltration defects Pipe replacement where rehabilitation is unsuitable, including open trench excavation, removal of defective stormwater pipes, supply and installation of new stormwater drainage infrastructure (reinforced concrete pipe, fibre reinforced concrete pipe, polypropylene pipe, HDPE pipe or other approved products as directed by Council), bedding and backfilling, compaction testing, connection of existing drainage infrastructure, and surface reinstatement Pit and drainage structure renewals, including pit reconstruction, pit replacement, access chamber replacement, headwall repairs, junction structure modifications, lid and grate replacement, concrete repairs, and installation of maintenance access points Void filling and ground stabilisation using approved methods and materials where defects have resulted in ground loss, void formation, sinkholes or sub-surface erosion, including pressure grouting, void filling and ground stabilisation works Surface reinstatement of all disturbed areas including roads, footpaths, kerbing, driveways, landscaped areas, irrigation systems, pavements and reserves, matching existing standards and Council requirements Renewal Locations (Section D) 2026-2027 Renewals: SW-Be-051 - Berri - Hughes Street - Riblok 425 - 81.25m SW-Be-077 - Berri - Muscat Avenue - RCP 300 - 7.51m SW-Be-080 - Berri - Vaughan Terrace - RCP 400 - 19.36m SW-Be-093 - Berri - Wade Street - RCP 375 - 16.30m SW-Be-154 - Berri - Arndt Street - RCP 300 - 81.28m SW-Ba-051 - Barmera - Nookamka Terrace - RCP 375 - 12.45m SW-Be-277 - Berri - Foreman Road - RCP 400 - 36.63m SW-Be-290 - Berri - Crawford Terrace - RCP 300 - 11.18m SW-Be-339 - Berri - Senior Citizen Car Park - RCP 425 - 118.40m SW-Be-370 - Berri - Wade Street - RCP 475 - 10.22m SW-Be-438 - Berri - Shiell Road - PVC 150 - 108.29m SW-Be-558 - Berri - Vaughan Terrace - RCP 300 - 29.24m SW-Be-560 - Berri - Worman Street - RCP 300 - 14.45m SW-Be-578 - Berri - Tregenza Drive - Riblok 225 - 83.64m 2027-2028 Renewals: SW-Be-052 - Berri - Hughes Street - Riblok 425 - 105.82m SW-Ba-089 - Barmera - Nookamka Terrace - RCP 400 - 18.05m SW-Ba-120 - Barmera - Nookamka Terrace - RCP 400 - 22.17m SW-Ba-155 - Barmera - Scott Avenue - RCP 400 - 19.31m The Costings Breakdown spreadsheet also prices additional items for each year: Inspection Pit, Side Entry Pit and Grated Inlet Pit. Contractor Requirements Demonstrated experience in stormwater asset rehabilitation and renewal works of a similar nature and scale Capability, resources and expertise required to safely and effectively deliver the works Ability to minimise disruption to residents, businesses, road users and the surrounding environment Preparation activities for robotic cutting works must not compromise the residual structural integrity of the pipeline Contract Terms and Conditions The contract is proposed to operate over a two-year period, allowing Council to deliver its annual stormwater renewal program in a planned and efficient manner while providing flexibility to address emerging priorities and asset defects identified through ongoing inspections and condition assessments Individual work packages will be issued throughout the contract term Works will generally be undertaken in accordance with Council's specifications, relevant Australian Standards, and industry best practices Enquiries Neil Drogemuller (Contractual): Phone: +61 85821922, ops@bbc.sa.gov.au Travis Colligan (Contractual): Phone: +61 85821922, ops@bbc.sa.gov.au