Hollingworth Lake

Hollingworth Lake is located approximately 1km south of the village of Littleborough and 15km to the east of Rochdale in Lancashire.

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Hollingworth Lake is located approximately 1km south of the village of Littleborough and 15km to the east of Rochdale in Lancashire.

In summary, the scope of work included:

  • Design and installation of a temporary bund structure within the reservoir to create a dry working area for construction
  • Construction of a masonry faced reinforced concrete valve chamber structure within the reservoir, approximately 8.5m from the reservoir bank edge
  • Construction of a concrete walled inlet sump structure for a 1600mm diameter pipe within the bed of the reservoir
  • Construction of 1600mm diameter pipework from the inlet sump, through the new valve chamber and to a discharge point within the existing concrete reservoir spillway
  • Construction of a 1600mm diameter upturned bellmouth discharge arrangement within the tumblebay of the existing concrete reservoir spillway
  • Procurement and installation of 2 No. 1200mm diameter hydraulically actuated (wedge) gate valves and extension spindles within the valve chamber
  • Modification and upgrading of an existing masonry structure within the UU owned land adjacent to the work area to form the new valve control building
  • Installation of draw pits and ducts across the highway between the valve chamber and the control building
  • Installation of a GRP valve control cabinet within the existing building
  • Installation of the hydraulic power pack, valve control panels and hydraulic fluid lines
  • Design and installation of the valve operating system consisting of hydraulic actuation and extension spindle operation through the twin input gearbox mounted on the valves
  • Design and installation of flooring for the valve chamber
  • Design and installation of stainless steel grills on the pipe inlet and outlet
  • Provision of a new power supply to the control building
  • Installation of electrical fittings and lighting in the control building
  • Design and construction of a footbridge from the valve chamber to the edge of the reservoir
  • Design and construction of access gates, fences and hand railing
  • Removal of temporary bund and reinstatement of working area.

Client: United Utilities

Contract: Hollingwoth Lake

Value: £646,801

Duration: 14 weeks