Ministry of Education - School Infrastructure

RFT - Civil Contractor for Site - Replace Sections of Stormwater Drainage at Te Kura o Hau Karetu, Maoribank

The school has had ongoing issues with rainwater management including blocked drains, overland water flows, sodden grounds and building degradation due to the aforementioned.

Investigative works have been carried out by Orogen with he resulting report forming the scope of work and being included with the tender documents. The report found:

• Sumps not connected to the drainage network
• Undersized manhole outlet drains
• Poor overland flow management
• Broken surface channels/drains

The recommended scope of work is:

• Add a secondary screen to the transrail culvert inlets
• Clear sumps, manholes and drains of tree root infestation
• Reshape the earth swale
• Connect the swale sump direct to the main line via a new 300 mm diameter drain
• Reposition/resize sumps adjacent pool building
• Connect the above via new 225 mm drains to the 300 mm drain
• Replace broken manhole lids
• Reform the east boundary channel bund

Department/Business Unit: Board of Trustees - Approve by BoT - ie. School Principal