The awards have four categories, recognising excellence in civil construction projects carried out by New Zealand companies, domestically and internationally, with budgets ranging from $500,000 to more than $20 million.
Downer New Zealand won the category three award, for projects worth between $5 million and $20 million for the Cleddau River flood protection scheme carried out by the Department of Conservation in Milford Sound.
The project included excavation and placement of 130,000cu m of river gravels and placement of 14,000cu m of stone, relocating 45 structures, raising the village area 3m to 4m, installing infrastructure and replacing structures.
NZCF executive officer Malcolm Abernethy said the Fiordland National Park presented "unique challenges" to the contractor in terms of planning and execution, yet the project was delivered on budget, a month ahead of the scheduled completion date, to a high standard "with innovation providing significant savings to the client".
Brian Perry Civil won category two, for projects worth $500,000 to $5 million, for the Manapouri Lake control structure repairs.
The remote construction site, also in Fiordland, included the excavation of a stilling basin for coffer dam construction and the design and build of a coffer dam system with the dam remaining operational at all times.
The contractor also had to deal with an extreme "once in 100 years" flood which demolished the coffer dam. However, it was successfully recovered and reinstated and the programme was completed within budget and ahead of schedule.
Category one, for projects worth less than $500,000, was won by Civil Construction (Horrell Contracting Ltd) for the Project Manassen dwelling site, for a new residential property in Queenstown.
Mr Abernethy said the contractor had overcome challenges including a steep site, restricted access and challenging ground conditions.
The contractor had also used innovative approaches to significant retaining wall construction within a residential area, with environmental considerations including noise and dust control.
The Victoria Park tunnel roads of national significance project in Auckland won category four of the competition, for projects exceeding $20 million.
Mr Abernethy said the project was "outstanding in every sense".
