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Honor Oak Park Reservoir

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Honor Oak Park Reservoir is one of the largest reservoirs in Europe
Mott MacDonald was appointed to provide specialist project management to Thames Water Utilities Ltd for a range of important network projects across South London. A key project within this programme was the refurbishment of Honor Oak Park Reservoir, whilst ensuring continued water supply. Part of this refurbishment involved replacing the roof membrane due to peripheral drainage.

Key highlights:

  • 100-year old brick reservoir
  • One of the largest service reservoirs in Europe with a storage capacity equivalent to the daily supply to 800,000 people
  • Each cell equivalent to the plan size of a football pitch
Challenges:
  • The reservoir was about 100 years old, overlaid by the Aquarius Golf Course
  • Excavation of overburden and new HDPE drainage mat to fall to perimeter
  • Re-contour perimeter embankment to remove excess overburden, and take measures to protect golf club structure and reinstate a number of tees and greens
  • Works had to ensure that only one cell was out of service at any time, with exception of last two (smallest and largest), which were agreed to come out together due to access difficulties with the last cell
Works were completed within target budget and on programme for the commencement of the summer peak demand.
Benefits:
  • We brought contractor and operational teams together to coordinate activities so that all parties could understand impacts and influences on each others operations, primarily to minimise delays on project
  • We undertook a public relations interface with Golf Club committee to ensure they were fully briefed and kept up to date on project progress plus impacts on their operations
Features:
  • Proactive programme and cost monitoring
  • Completion of safety reviews
  • Preparation and presentation of project proposals to secure funding and approval to spend on projects
  • Project risk, value and change management
  • Co-ordination of the alliance teams
As part of the long-term contract full inspections will be carried out every ten years and repairs will be undertaken if necessary.


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