The Reservoirs Act places a duty on the owners of reservoirs containing more than 25,000 cubic metres of water, that are raised above the natural ground level by the construction of a dam to comply with a regime of maintenance safeguarding against failure.

The council owns two reservoirs that fall within the provisions of the Reservoirs Act; Doffcocker Lodge and Mortfield Lodge. The Drainage Team regularly inspects and monitors the lodges and ensures that they receive annual inspections by a qualified reservoir engineer.

Doffcocker Lodge

Built 1874 (renovated 1980)
Dam height 7.1m
Capacity 123,000 cubic metres
Surface Area 80,500 square metres

Mortfield Lodge

Built 1860 approx.
Dam height 4.6m
Capacity 30,000 cubic metres
Surface Area 13,800 square metres

Other Bolton reservoirs

There are a number of other reservoirs in the area that are large enough to be covered by the Reservoirs Act. Some are privately owned and some owned by United Utilities for water storage.

These reservoirs are:

  • High Rid
  • Rumworth
  • Jumbles
  • Lower Doe Hey
  • Upper Doe Hey
  • Wallsuches
  • Lower Rivington
  • Springs
  • Dingle
  • Turton & Entwistle
  • Wayoh

The enforcement of the Reservoirs Act is undertaken by the Environment Agency, if you have any concerns or queries on any of the above reservoirs please contact the Environment Agency on 08708 506506.

The drainage team also undertake the risk assessment of small reservoirs, ponds and lodges within the ownership of the authority. The team undertake assessments and recommend what works are required in the interests of safety. Our staff members have been trained by the Royal Society for the Prevention of Accidents (RoSPA) in inland water safety and the assessment of risk from inland water bodies.

Drainage Team

Fourth Floor

The Wellsprings

Victoria Square



Telephone 01204 336437
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