Drainage Networks

Assisting Public utilities with drainage infrastructure 

Ayesa provides a range of drainage consulting and DWMPs (Drainage Waste Management Plans) to manage surface run-off including traditional and SUDS methods.  Our approach considers the entire project lifecycle from feasibility to the investigation, construction to operation and maintenance.  We combine engineering solutions to provide drainage facilities based on site-specific challenges and develop solutions that complement and improve habitats, ecosystems, and amenities, wherever possible. We manage the full process including design, specification, construction supervision, and applications for consent to work within/discharge to affected watercourses including Section 50 (OPW, Ireland), Schedule 6 (DFI Rivers, Northern Ireland), Section 23 (England), controlled Activities Regulations (CAR) (SEPA, Scotland).

Our multidisciplinary experts consult across numerous disciplines, collaborating to provide the ultimate solutions:

• Attenuation, detentions, infiltration systems
• Contract administration
• Drainage impact assessment
• Ecological survey and impact assessment
• Hydraulic modelling
• Nature-based solutions
• Network calibration and verification
• Permeable paving
• Pipeline route selection and route proving
•  Statutory approvals
• Storage assessment and design
• Swales and filter drains
• Tender/contract documentation

• Cities/Urban drainage
• SuDS (Sustainable Drainage Systems) advice
• Drainage tunnels & pump stations
• Design of watercourse infrastructure
• Drainage strategies
• Impermeable area surveys/runoff design
• Drainage network modelling
• Culvert design
• Ground analysis
• Environmental assessments

Notable projects including Blanchardstown Regional Drainage Scheme, Arklow Main Drainage, and Bray Shanganagh Drainage Scheme, working in partnership across stakeholders, local councils and authorities to add value and enhance communities and economic development.