Drainage

The provision of adequate surface and foul drainage is critical to the day to day running of any building even more so with the advent of global warming and limited resources to treat effluent. We are expert in delivering cost effective Sustainable Urban Drainage Systems (SUDS) to deal with the surface water run-off over and above the Greenfield Run-off Rate usually demanded by the Local Drainage Board and The Environment Agency/Natural Resources Wales.

We also deliver clever foul water solutions which can create opportunities for new sites to be developed.  Examples include creating additional foul capacity in combined sewers by diverting surface water or by requisitioning new foul sewers to avoid third party ransom situations. We have extensive experience in delivering the widest range of cost effective and sustainable drainage solutions including:

  • S104 New Foul and Surface Water Sewers For Adoption by the Local Utility Company.
  • S185 Works Involving Alterations or Diversions of Existing Adopted Sewers.
  • The Hydraulic Modelling of Existing and Proposed Drainage Systems Using Windes.
  • EA Discharge and Environmental Permits.
  • SUDS Design Solutions Including Soakaways, Attenuation Ponds, Swales, Porous Paving, Reed Beds, etc.
  • Rainwater Harvesting Systems.
  • On-site Livestock and Human Effluent Treatment Works.
  • Foul Pumping Stations and Rising Mains.


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Latest News View all

Well Deserved Promotion

Congratulations to our Jack on his recent promotion from Graduate to Civil Infrastructure Engineer. Jack joined us at the very end of 2018 after graduating from Imperial College London with an MEng in… Read more »

Bristol Office Promotion

We are pleased to announce the promotion of Tim Hodson to Director of our Bristol office. Tim joined Cambria three years ago as a Senior Associate and quickly established a growing local client… Read more »

A Bit of Christmas Volunteering to End 2020

On Christmas Eve, Christmas Day and Boxing day, our Trish helped her good friend Jayne Hemmings deliver meals to people who would not have had a meal over the holiday period via Gwent… Read more »

Trish’s Walk 100 Miles in 4-Weeks Challenge

At the end of October 2020 our Trish decided lockdown was getting to her with the winter nights closing in, so set a personal challenge to walk 100 miles over 4 weeks.  The… Read more »

For He’s a Jolly Good Fellow

We are delighted to announce our Director Gary Mitchell has received Fellowship status with The Institution of Structural Engineers. Gary founded CAMBRIA in 2011 with a vision to evolve and redefine the Consulting… Read more »

Pagabo National Framework Award

We are pleased to announce we’ve been awarded a place on the Pagabo National Framework for Professional Services 2020 in the Civil and Structural Engineering Categories for Wales, South West and the Midlands…. Read more »

Merry Christmas from all at Cambria!

Cambria support Cardiff Foodbank this Christmas

This year, for our annual Christmas Charity, we have decided to collect for our local Cardiff FoodBank. Foodbank use is sadly at record levels in the UK with a reported 23% rise in food… Read more »