MEC’s Civil Engineering and Structures teams have provided the full infrastructure design pack for a bespoke development of 9 new homes at McArthur Gardens, Bedworth. This site was formerly open green space with no arable usage but in close proximity to nearby amenities and infrastructure.
Our full infrastructure design pack included an adopted S278 highways access to the site frontage from Woodlands Road.
Due to the existing on-site levels preventing the implementation of standard road gradients, we incorporated a heavy duty permeable shared access road. This allowed for the removal of standardised gully and sewer infrastructure in-place of a permeable access road to transport surface water from the site to the outfall in a nearby ditch. The use of this form of construction for the main access road also allowed us to meet the required criteria for filtration of hydrocarbons (in accordance with the current CIRIA SuDS guidance) without the use of an open attenuation feature taking up valuable space within the development.
Alongside this sustainable urban drainage system (SuDS) feature, we also produced our own surface water construction management plan, or CEMP report. This sets out not only the construction phasing of the SuDS feature but also ongoing maintenance and is now regularly requested by local authorities.
The above-mentioned permeable paving was not only to be used to carry the storm flow to the outfall but was also intended as a way of storing stormwater during heavy rainfall to prevent flooding of the outfall. We had to model the exact size and fall of the access road within our drainage model to ensure an accurate representation of what was to happen on-site.
Working closely with Warwickshire Highways (WCC) and Severn Trent Water (STW), we implemented modern SuDS techniques that were more cost effective and reduced the overall economic footprint of the site.
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