Drainage Design

WCI provide comprehensive drainage design services for all types of development. Our drainage design capabilities span all stages of project development from drainage strategy for planning approval through to detailed design for tender and construction.

Our designs are supported by the application for, and coordination of, regulatory consents and permits including Environmental Permits for discharge, S102 and S104 adoptions and requisitions, Trade Waste Consent, IDB consultation, FRAP, MMO, etc. Our designs do not annotate for exclusions of critical dependencies.

EXPLORE WCI DESIGN SERVICES:

Surface Water Drainage - SuDS

The principle of SuDS is manage the rate, volume and water quality of run-off from a site to reduce the risk of flooding and pollution whilst improving bio-diversity.

WCI provides innovative, cost-effective SuDS designs that balance the commercial requirements of a development with bio-diversity and social utility. No site is too large or too small.

The WCI Difference:

When considering your site, we can advise on how you can minimise costs, whilst complying with the statutory requirements set out under the Flood and Water Management Act. There is no “one solution fits all” when it comes to drainage and our experienced team can take you from concept to design, and walk you through the approval process upto completion on site if needed.

When assessing your drainage needs the team at WCI will consider a variety of surface water drainage methods, for example;

Rainwater Harvesting
Soakaways and filtration systems
Flow control and attenuation storage
Discharge to culverts and watercourses
Connections to public surface water sewers
Designing pipe sizes and layouts

SuDS - Domestic Properties

Most domestic properties are able to dispose of rainwater into the ground via a soakaway. This is achieved by collecting rainwater from roofs, driveways and pathways from downpipes and gullies into a series of stormwater pipes which discharge to a rainwater soakaway.

Installing a replacement or new soakaway correctly requires an understanding of the area that is being collected and the ability of the local soils to soak this water up. WCI undertakes the necessary infiltration tests and designs soakaways using the latest MicroDrainage software to ensure that even the smallest soakaway will work reliably and avoid flooding.

Stormwater

Managing stormwater sustainably and cost effectively requires an integrated approach based on four key pillars:

Water Quality | Water Quantity | Amenity | Biodiversity

Integrating all four pillars in a stormwater drainage system avoids pollution and flooding while creating systems which improve our enjoyment of our built environment and the benefit it brings to wildlife.

WCI are experts in the design and installation of stormwater drainage systems that incorporate the four pillars of SuDS.

Foul Drainage Design

WCI have designed and installed Foul Drainage Networks at scales ranging from single domestic residences to large-scale commercial networks for Developers, Architects and Planning Consultants.

WCI can support developments either as a stand-alone service or as part of a broader package of works from the planning phase, detailed design through to the development phases.

The specification and installation of foul drains is subject to Building Regulations and must be correctly sized for the expected flows and must be laid at correct gradients to prevent blockages. Access points (rodding points, inspection chambers and manholes) must also be provided.

Understanding the intricacies of foul drainage is essential. Whether you’re dealing with gravity drains, pumped rising mains, or the complexities of shared sewers and lateral drains, compliance with Regulations and proper sizing and installation are key. At WCI, we provide detailed designs that will be specific to your site, taking in to consideration your specific drainage needs such as:

Designing pipe sizes and layouts.
Connection to private or public systems.
Pumping Stations.
Septic Tanks.
Package Treatment Plants.

No development site is too large or too small. The WCI team have prepared designs for residential developments ranging from a single extension through to large developments with over 900 homes. We have sucessflly designed mixed use commercial, industrial and residential drainage scehemes all to suport our clients needs.

LEVERAGE OUR INDUSTRY EXPERIENCE

The WCI in-house engineers are experienced in both national and local planning policy together with current technical standards such as: Sewerage Sector Design and Construction Guidance, Building Regulations, the CIRIA SUDS Manual and Water Authority technical standards.

Our foul and surface water drainage network design is supported by detailed modelling using industry-standard MicroDrainage software.

Whatever the project size, sector or requirement, WCI includes lean and agile support to meet our clients requirements providing drawings, specifications, contract documentation and on-site construction supervision as necessary.

Contact the WCI Design Team

INDUSTRY EXPERIENCE, DRIVING REAL RESULTS

With 40 years’ expertise, WCI provides a complete ‘design and build’ service for both domestic and commercial customers. Our designs are cost-effective and buildable as demonstrated by our an enviable track record for approvals in working with:

THE WCI DIFFERENCE

WCI is well known for our knowledge of wastewater engineering and has the in-house knowledge and expertise ensuring integrated, innovative and cost-effective SUDS design that balances the commercials of a development with the bio-diversity and social utility.

WCI foul drainage strategies encompass solutions featuring mains connections and diversions, private treatment, pumping stations, inverted siphons and network design and optimisation.

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