dam building in harsh & remote areas

PROJECT Rosebery Tailings Dam Upgrade CLIENT Minerals and Metals Group (MMG) INFORMATION In 2016/17 Hazell Bros was engaged by MMG to upgrade the Rosebery Tailings Dam. Some of the works included: • 36 hectares of clearing and grubbing • 100,000m 3 of topsoil stripping • 1,000,000m 3 of excavation in rock • 2,500m3 of cement bentonite into a 600mm wide wall • Installation of 190,000m 2 of flexible bitumen liner Awarded the Tasmanian Civil Contractors Federation Earth Award in 2018 - Category 5 Project value between $30M and $75M. PROJECT Conglomerate Dam Upgrade CLIENT TasWater INFORMATION Built in 1971 of earth and rockfill construction, Conglomerate Dam has a storage capacity of 53.1ML. In 2017 Hazell Bros was engaged by TasWater to undertake an upgrade of the dam. Some of the works included: • Installation of full height buttress filters and rockfill weighting berm • Demolition of existing & construction of the new high capacity spillway 1:10000 • Raising the impervious level and crest level of the embankment • Installation of multi-level intake structure with centralised valve operation • Upgrading dam instrumentation and telemetry • 25000m 3 of imported and placed rock buttress and filter materials DAM BUILDING IN HARSH & REMOTE AREAS www.hazellbros.com.au

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Page 1: DAM BUILDING IN HARSH & REMOTE AREAS

PROJECTConglomerate Dam UpgradeCLIENTTasWaterINFORMATIONBuilt in 1971 of earth and rockfill construction, Conglomerate Dam has a storage capacity of 53.1ML. In 2017 Hazell Bros was engaged by TasWater to undertake an upgrade of the dam.Some of the works included:• Installation of full height buttress filters and rockfill weighting berm• Demolition of existing & construction of the new high capacity spillway

1:10000• Raising the impervious level and crest level of the embankment• Installation of multi-level intake structure with centralised valve operation• Upgrading dam instrumentation and telemetry• 25000m3 of imported and placed rock buttress and filter materials

DAM BUILDING IN HARSH & REMOTE AREAS

www.hazellbros.com.au

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