Water and Wastewater Networks

There is an increased focus on the rehabilitation of existing sewage pipelines and the establishment of new ones, as well as the improvement of storm water drains, rainwater storage tanks, open rainwater basins and water distribution networks. Ramboll has experience providing technical and consulting experience around the world.

Read more on our international website

Rainwater drain


Anthony Guay

T: +44 7918 768 716

Simon Gaskell

Managing Consultant
T: +44 1225 748 420

Drainage strategies

We are skilled in the development of foul and surface water masterplans and management plans, to assist clients with decision-making when planning a new development or enhancing existing ones. We identify and assess constraints and options then design concepts to mimic and enhance the natural water cycle.

Sustainable drainage systems (SuDS)

SuDS are mandatory for all new developments in the UK and our experience stretches back two decades. We undertake SuDS strategies from concept to detailed design and delivery. As well as designing for attenuation (storage), our designs include water treatment elements and can include ecological, landscape and amenity benefits.

Blue-green infrastructure/water sensitive urban design

Blue-green infrastructure is an approach to managing water at development and city-wide scale in a way that reflects the natural water cycle. It integrates landscape and biodiversity with water to become the focus of masterplanning, reflecting the importance of water to communities from the social, physical, cultural and economic perspective.

Blue-green infrastructure is closely aligned with water-sensitive urban design, a land and planning engineering design approach that integrates the urban water cycle into urban design. The methodology regards urban storm water as a resource to improve aesthetic and recreational appeal, rather than a nuisance.

Wider services

Ramboll has extensive expertise within technical assistance related to water and wastewater infrastructure:

  • Sewage networks
  • Tunneling sewers
  • Drinking water networks
  • Discharge systems and marine outfall
  • Climate adaptation and stormwater handling

Services within water and wastewater infrastructure

A broad range of clients from utility companies to international finance institutions have engaged Ramboll for water and wastewater infrastructure assignments all over the world.

  • Urban water landscape
  • Water supply planning
  • Wastewater management and strategic planning
  • Asset management
  • CCTV sewer inspection reviews and renewal planning
  • 1D and 2D network modelling, eg TuFLOW, HEC-RAS, Microdrainage, Mike Urban, Mike 11, Mike 21, Mike SHE, EPANET and Aquis
  • Conceptual design
  • Detailed design
  • Construction supervision

Sewage, discharge systems and marine outfall

Many sewage systems are outdated and in need of significant investment to modernise and improve efficiency. We provide clients with a comprehensive overview of their sewage system and help them plan cost-effective renovation projects. Our experience includes the design of pipelines, river and sea outfalls, basins, canals, drains, pumping stations and overflows.

Drinking water networks

The planned operation and systematic maintenance of wastewater facilities can prevent most problems from occurring and provides clients with the confidence to commit extra resources only where necessary.


240 Blackfriars Road
London SE1 8NW
United Kingdom
Tel: +44 20 7631 5291
Fax +44 845 299 1610

Mail: london@ramboll.co.uk

Company registration

Company registration

Ramboll UK Limited. Registered in England & Wales. Company registration no. 03659970. Registered office: 240 Blackfriars Road, London SE1 8NW

Other sites

Other sites