Drainage

	Lake Road - 4 Laning Client: Rotorua District Council Scale: $2.5M Installed customised manholes weighing over 30 tonne. 3.8km of stormwater from 300mm to 1350mm diameter pipes and 1000mm x 650mm up to 2500mm x 1000mm box culverts. Installed at depths up to 4.0m and below the water table. Conditions were difficult with high water tables, hot ground conditions, gas issues, multiple service clashes and high volumes of traffic and pedestrians as well as the need to maintain access. Space was at a premium and due to depths, shoring was required including sheet piling in some cases.
	Waharoa Sewerage Reticulation Client: Matamata Piako District Council Scale: $3.5M Involved full reticulation of over 200 properties in Waharoa with over 11km of gravity sewer, four pumping stations and over 7km of rising main to connect into the Matamata sewerage system. Waharoa high ground water level (1.2m below G.L.) proved a challenge. This project required great communication with individual property owners to ensure a seamless transition from septic to mains sewer. Significant well point dewatering and pavement reinstatement.
	Boundary Road Client: Hamilton City Council Scale: $348,000 Approximately 900m of new storm water line from 300mm to 900mm diameter, up to 4.5m deep through the middle of Boundary Road (25,000 vehicles per day). Included man holes, catch pits and trench / pavement reinstatement. Compliance with approved TMP and extensive traffic management monitoring was required.
	PE Watermain Client: Taupo District Council Scale: $600,000 Construction of 850m long PE water main. 600mm diameter including all trenching, welding, scour, air valves, trench reinstatement, 2,000m² new cobble footpath. Significant environmental controls with works being carried out next to Lake Taupo and TTM next to SH1.

Drainage

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