Millennium Town Park, St Helier

Customer:The States of Jersey

Value: £8.0 million

This challenging project involved a complex public realm scheme to remediate a 1.3Ha former town gasworks in the centre of St Helier. The site was surrounded on all sides by commercial and residential properties.

With adjacent properties as close as 6 metres from the hoarding, it was necessary to ensure that residents were kept aware of what was happening on the site. Regular newsletters were sent to local residents and business when working methods were changed or when milestones were achieved.

A key feature of the remediation of the park was the re-use of existing site material as Jersey has no facility to treat contaminated material. The scheme was therefore engineered to be Zero Waste. The environmental impact of the works was monitored constantly with data on odour, vapour, dust, vibration and noise emissions being recorded constantly. An independent external laboratory was used to test the soil samples taken once every 400m³ by VHE’s environmental engineer.

As part of VHE’s commitment to reduce the impact of the works on the local community, a traffic management system was put in place. In conjunction with the Parish of St. Helier, routes and timing of bulk delivery vehicles were agreed.

Key elements of the project were:

  • Remediation and on site treatment of material
  • Installation of impermeable lining and surface water drainage system
  • Installation of 6,000 metres of ducting for CCTV, street lighting and Wi-Fi
  • Construction of underground reinforced concrete structures, tanks and pumping station
  • Rainwater harvesting system collecting water from whole site through use of impermeable membrane
  • Installation of deep drainage system
  • Above ground reinforced concrete work
  • Granite hard landscaping and footpaths
  • 6,600m2 of turfing and planting 10,000 shrubs and plants including 150 mature trees, up to 10 m tall
  • Creation of 9 metre long and 3.5 metre high polished stainless steel water curtain feature and animated water feature using jets
  • Utility building and secure fenced hard surfaced sports area
  • Secure children’s play area including 700m² of ‘soft play’ surfacing
  • Fabrication and installation of 3 steel pergolas
  • Erection of 2 specially commissioned sculptures
  • Installation of perimeter granite copings and steel railings

This was achieved successfully 3 weeks ahead of programme and with over 2,000 people attending the opening.

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