Project
Buller IAF
Region
Christchurch
Client
Buller District Council
Completed
2022

The Infrastructure Acceleration Fund (IAF) is part of the Government’s $3.8 billion Housing Acceleration Fund announced in March 2021. The IAF is a contestable fund of at least $1 billion for infrastructure investment to support new housing supply where infrastructure providers face funding and finance barriers.

 

Buller District Council applied to the IAF to facilitate faster housing stock to the Buller region, specifically, Westport, Buller District Council together with Kāianga Ora, engaged consultants to provide for services in relation infrastructure development for the site. Key drivers of the development included flood response housing and growth for Westport.

 

Key stages included working with BDC on their IAF application through to delivering multidisciplinary services (geotechnical, structural and civil engineering design) for the proposed roading infrastructure upgrade and water engineering services.

 

DO provided conceptual engineering design, report, schedule of quantities and engineers estimate sufficient to submit to Kāinga Ora for final IAF funding approval. Our dedicated team successfully delivered the works under a strict time frame of 8 weeks.

 

The work consisted of assessment of existing and future demand for 3 Waters services, roading, and utilities servicing for the greater Alma Road and McPadden Road growth areas for up to 484 dwellings. DO also coordinated specialist lighting and traffic engineering services.

 

Complexities included assessing wastewater reticulation and pumping of effluent to the Westport wastewater treatment plant which is at a lower elevation. This was resolved by promoting an upstand syphon into the screening plant. Another consideration was high hydraulic residence time and pipe flushing velocities of effluent when pipes are not at capacity. This was addressed through use of dual rising mains of different internal diameters that can be configured for demand.

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