Projects · Water

Cumbria → Greater Manchester·Under wayWater

HARP, Haweswater Aqueduct (United Utilities)

  • StagePlanning permissions confirmed; site investigation and enabling works; main construction expected to begin in 2026
  • Valuec.£3bn estimated construction cost
  • Next milestoneMain tunnel replacement construction
  • Last checked1 November 2026
Source: United Utilities →

What has changed on this project, and when

  • Next milestone: Main tunnel replacement construction2 November 2026 · previously: Main construction expected to start in 2026, following site investigation and enabling works
  • Stage: Planning permissions confirmed; site investigation and enabling works; main construction expected to begin in 20262 November 2026 · previously: Main construction from 2026
  • Value: c.£3bn estimated construction cost2 November 2026 · previously: £3bn
  • Next milestone: Main construction expected to start in 2026, following site investigation and enabling works24 September 2026 · previously: Tunnel drives commence

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