Adoptable Drainage Design services include preparation of drainage drawings and calculations for Section 104/106 approval from the local Water Authority. Flow controls, storage facilities and infiltration systems are designed with simulation of the proposed network carried out using MicroDrainage software.
The package of drawings prepared for Section 104 or 106 Agreements includes a detailed layout plan, manhole schedules, longitudinal sections, setting out information and construction details. Attenuation specification and sizing including full design and detailing, type, location and design of flow control measures. Attenuation is designed in accordance with the relevant standards and Local Authority or Environment Agency requirements.
Where possible, Infiltration Systems are designed in order to cater for runoff at source. Designs for soakaways, filter trenches or porous paving systems include full design and detailing including calculations for Environment Agency, Local Authority or Highway Authority approval.