Addison supports flood alleviation schemes with tailored civil engineering solutions designed to manage surface water, reduce flood risk, and meet regulatory standards. Our services include:

• Attenuation Systems: Design, supply, and installation of large-diameter attenuation pipework, tanks, and hydrobreak manholes to control water flow and prevent surcharging.

• Detention Basins & Earthworks: Formation of large detention basins and cut-and-fill operations to manage stormwater storage and slow release.

• Drainage Networks: Construction of foul and surface water drainage systems, including deep manholes, gullies, and outfalls, built to adoptable standards.

• Highways Integration: Delivery of flood mitigation infrastructure alongside Section 278 works, ensuring safe access and resilience in flood-prone areas.

• End-to-End Delivery: Full project management including permits, testing, surveying, and coordination with local authorities, water companies, and statutory bodies.

Addison’s experienced teams deliver flood alleviation infrastructure that protects communities, supports development, and meets long-term environmental goals.