Ely Mill Development

The Ely Mill Regeneration Scheme was a site preparation project for the construction of 800 new homes and a neighbourhood centre. The construction site was previously occupied by Arjo Wiggins Paper Mill which was closed in 1999 and lay derelict for 10 years due to complexities with access, flooding and contamination.

Client: Ely Bridge Development Corporation
Location: Cardiff
Completion Date: September 2017
Value: £10.4m
Contract: NEC Option A Design and Build

 

Griffiths started work on this Design and Build Contract in February 2016 to construct a new 100m multi span bridge on piled foundations, 1km of single lane main carriageway, 3.5km of drainage, additionally to this:

  • Remediation of 50,000m3 of contaminated ground including:

o Hydrocarbons – buried underground and covered with 600mm of clean cover
o Asbestos – picked and removed off site to a licensed specialist waste facility
o Knotweed and Himalayan Balsam

  • Breaking out, processing and re-use of ground slabs and hard dug materials. Screen and crushed 40,000 tonnes of aggregate based materials to type 1 sub base, used for roads and footpaths
  • 99% of waste was recycled and re-used on site this involved incore recycled material used to form build flood bunds on the main site and existing rugby field reducing virtually all disposal costs
  • 3500m surface and foul water drainage, up to 6m deep, construction of pumping all to adoptable standards