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Brian Perry Civil
CATEGORY 3: Projects with a value between $10 million and $50 million
Unlocking the Johnsonville triangle
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The $14 million Johnsonville Transport Improvements project proved a success story for early contractor involvement. Johnsonville, the most northern suburb of Wellington, is located just 10 minutes north of the central business district off State Highway 1. The convenient motorway access also provides easy reach to the cities of Lower Hutt and Porirua in a very short time. It is the northern terminus of the Johnsonville branch line of the Tranz Metro (commuter) train service to central Wellington. The Johnsonville Transport Improvement CATEGORY (JTI) Project was a $14 million NZTA project 3 FINALIST aimed at improving the flow of traffic on/ off State Highway 1, reducing congestion in Johnsonville town centre and providing safer provision for pedestrians and cyclists. With ECI D&C projects running both streams in parallel it involved demolition and replacement of the Broderick Road rail overbridge; storm water upgrade; bulk earthworks; footpath upgrade; new cycle ways; mechanically strengthened earth retaining walls; and State Highway 1 off-ramp widening works.
The primary client was the Transport Agency, but the project was funded jointly with Wellington City Council as part of the agency’s One Network approach.
Fletcher/Brian Perry Civil (FCI/BPC) were engaged under an Early Contractor Involvement (ECI) design and construct scheme. Early concept designs were picked up in June 2014 and developed into a full specimen design. Following a period of pricing, refinement and negotiation the team mobilised to site in August 2014. The project was complete 13 months later, in September 2015.
“To deliver a successful outcome we needed to open a new bridge within five months before planning and executing a packed programme of work during the KiwiRail Block of Line,” says the company.
“This project is viewed as an immense success, with extremely high client satisfaction on all sides. The success of this project came down to trust between WCC, NZTA and FCI/BPC.” l
