The annual expenditure on water mains rehabilitation in the United Kingdom has
grown steadily since water privatization in 1989 to a level where it now
represents the major capital spending of the water companies. This increase is
likely to be mirrored in North America and Canada as greater emphasis is placed
on asset condition and performance. To ensure that this expenditure on the water
mains asset is being implemented efficiently and that justifiable benefits are
being realized, there has been an increasing interest in the process by the
regulators and the budget holders. In the United Kingdom, each water company now
has to submit to the government regulator a definitive water main rehabilitation
strategy against which they are both technically and financially audited. This
strategy must include the company's statement of its water main rehabilitation
policies and procedures that should facilitate the identification of justifiable
and beneficial water mains rehabilitation schemes. With a continuing need to
provide maximum benefits to customers at minimum cost, the water main
rehabilitation strategy has been combined with other water distribution functions
such as leakage, pressure management, hydraulic demands (fire flows) and future
development growth to produce an Integrated Network Management Strategy. This
paper describes how water main rehabilitation strategies have developed and how
they are now a key part of a successful infrastructure investment program. There
are a number of key areas common to any water main rehabilitation strategy and
these are discussed. Includes reference, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 190 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 23 |
| Published : | 01/01/2000 |
