The Avenue regeneration scheme is a £95 million, NEC2 Option C, remediation and landscaping project. It is the largest scheme currently being undertaken in the UK by the Homes and Communities Agency and is being delivered by VSD Avenue, a joint venture comprising VolkerStevin, Sita Remediation and DEC.
The 98ha Avenue site was recognised as one of Europe's most contaminated sites, but despite this it is home to several rare species of flora and fauna and the selected remediation strategy had to include measures to protect or transfer and subsequently enhance the area to support these species in the future.
VSD conducted trials during the ECI phase and developed the final remediation strategy utilising a combination of the best technologies and skills available in the UK and Europe to bring the Avenue site back into beneficial use. The ECI works also included obtaining planning permission and all other statutory approvals including Licences for the operation of thermal desorption, bio-remediation and soil washing plants.
VSD was awarded the main site contract by EMDA (now HCA) at the end of July 2009 and immediately commenced the construction of the bespoke thermal treatment plant which would treat the most heavily contaminated materials within the site and this was commissioned in October 2010. The plant was supplemented by the installation and commissioning of a bespoke water treatment plant. VSD Avenue uses a combination of thermal desorption, bio-remediation and complex sorting to remediate varying contaminants around the site.
VSD is also responsible for managing a number of key civil engineering requirements around site including: -
On completion the site will incorporate public open space and amenities including football and cricket pitches, a 70 hectare nature reserve with footpaths, wetland habitats and a 28 hectare housing and light industrial development area with opportunities for new roads and infra-structure which will create long term local employment opportunities.
Other Key items of work include the construction of a flood alleviation dam and SUDS scheme and the trans-location of numerous great crested newts, snakes, and water voles and the excavation and treatment of the following quantities: -
- 2,200,000m3 of earthworks
- 250,000 m3 of complex sorting
- 75,000m3 of bioremediation
- 300,000 m3 of thermal desorption
- 250,000 m3 of soil manufacture
The project started in 2009 and is scheduled for completion in late 2015.