St Mary’s Island – Countryside Properties

Infrastructure, Groundworks and RC Frame– Earthworks, Roads & Sewers, Drainage and RC Frame

Contract Value: c.£25m  |  Duration: >15 Years

St. Mary’s Island is a former submarine base and the site incorporates 150 acre residential development that forms part of the 350 acre Chatham Maritime regeneration project.

Challenge

  • Tidal water table adjacent to River Medway
  • Extensive underground structures, some up to 20m deep
  • Pumped foul drainage – With development just above sea level all foul drainage requires pumping off site,

Solution

  • Detailed planning was required to be co-ordinated with tides and dewatering activity.
  • Tamdown worked with Countryside Properties to redesign piling arrangements to allow underground structures to remain in place and avoid additional costs.
  • Extensive discovery and preparation was required to ensure the existing pumping system was not impacted during connections and adjacent works.

Outcome

  • Over the 15 years Tamdown delivered onsite we worked closely our customer to ensure quality delivery.
  • The close partnership ensured we resolved any challenges together and agreed the best way forward for both delivery and programme.