Improving New Lynn’s transport and services infrastructure.
New Lynn Transit-Oriented Development
Client: Auckland Transport
- 6 months ahead of schedule
- 57 local businesses
- 1,056m stormwater
- 5,231m services & ducts
Project Background
The New Lynn Transit-Oriented Development (TOD) was a high-profile urban civil infrastructure project for Auckland Transport designed to improve New Lynn’s transport and services infrastructure in tandem with an overall town centre upgrade that linked in with the rail station.
Project Overview
Dempsey Wood played a significant role in the project and exceeded client and stakeholder expectations and key project targets.
We delivered the $14 million Stage 1 contract two months early and the $21 million Stages 2 & 3 contract was completed four months early in time for the 2011 Rugby World Cup.
This was a fantastic achievement, given that we were working around other contractors and had to sequence our works and readjust our TMPs to accommodate their works.
Dempsey Wood Traffic provided high levels of integrated traffic and pedestrian management and controls to minimise disruption and maintain access to the 50+ business premises and residential properties along the project route.
We also went the extra mile to establish positive, proactive relationships with the stakeholders. We successfully managed the complex and numerous stakeholder liaison requirements, which included developing a "Safe Kids" initiative programme for the New Lynn kindergarten.
Scope of Work
Site clearance, earthworks and road pavement excavation.
A 4-lane road-over-twin track rail bridge on a tight horizontal curve alignment, hollow pre-stressed beams, transverse post-tensioning, abutments (piles, pile cap, columns and headstock) and settlement slab spanning onto MSE keystone wall.
Precast concrete, timber and various MSE retaining walls up to 7m high with an integrated precast TL4 barrier constructed on the Clark St approaches to the road-over-rail bridge.
Pavement construction incorporating over 15 different types including heavy-duty, asphalt and concrete pavements for road construction and widening as well as footpaths, carparks and the shared space area.
Bus and cycle lanes, bus bays, bus stops and carparks.
Seven new signalised intersections, intersection upgrades and construction of the Portage Rd/Clark Street roundabout.
Installation of 1km of 225mm-600mmØ stormwater drainage up to 4m deep using open trench and micro tunnelling.
Over 5km of new utility services including water, sewer and wastewater reticulation, ducting, power and gas.
Creation of shared space area/plaza with a large steel shelter structure in a busy, operational business and retail environment.
Street furniture, landscaping and two LID rain gardens incorporating jarrah bridges and gabion walls.
Separate closures were instated for the construction of the Lucas Creek Bridge, while the construction of the roundabout at Fairview saw a combination of closure and stop/go methods utilised.
Barriers, signage and delineation methods were used to ensure public safety, and works were sequenced to mitigate disruption as much as possible. Conducted collectively by DW Traffic Management and our subcontractors, the team worked to ATOC, and client requirements to provide the highest standard of TTM, with safety maintained throughout.
The project saw some teachable moments and a few challenges (Hello COVID), but the diligent work of the project team saw construction achieved in the expected construction timeframe.
Outside-of-the-box thinking saw differing methodologies proposed and used throughout construction, from pavement extensions to tie in with other projects and product innovations for speed tables.
With an intensive scope of work, many of our kaimahi worked outside their current roles, displaying a high level of skill and development. The team brought their A-game to this project, building collaborative relationships and delivering quality workmanship. Strong relationships with ATOC and the client Auckland Transport underpinned the project with a collective, best-for-project approach.
One particular milestone occurred on a cold September morning when the new signalised intersection on Oteha Valley Road was "turned on". What a relief at 4.30am for everything to work spectacularly!
