Products / Techniques

Modular Storage and Soakaway System

Stormbloc® Optimum Installation

Infiltration is a priority process for Sustainable Drainage Systems to ensure control of water as close as possible to the point of falling and mimic natural processes.

Often naturally-occurring or ‘soft’ SUDS features alone are insufficient to address the site-specific conditions of a development or demand premium development space. In such cases, using an engineered system such as Hydro’s Stormbloc® Optimum enables SUDS standards to be achieved.

Stormbloc® Optimum successfully provides high-capacity retention of surface water runoff which can supplement swales and ponds, contribute to a combined SUDS stormwater system or operate alone as required to meet requirements to limit off-site discharges.

BBA approved, Stormbloc® Optimum facilitates natural surface water infiltration with an underground storage and soakaway system. It is the only cellular crate system with a patented inspection and maintenance tunnel built into each block.

The modular design is easy to install for residential, public, commercial or industrial surface water control, and Stormbloc® Optimum is strong enough to withstand traffic loads under roads and vehicle parks, or amenity and landscaped areas.


Inspection and maintenance access

Access shafts can be easily constructed during installation of the Stormbloc® Optimum system to enable inspection and maintenance.

The channels between the vertical struts allow access for CCTV inspection, maintenance and cleaning and ensures that the storage volume of the system isn’t compromised by the build up of silts.

Lightweight and strong

Combining strength with a storage coefficient of 96%, Stormbloc® Optimum allows you to plan and design effective SuDS systems even in challenging urban environments with high traffic levels. The Stormbloc® Optimum can withstand heavy goods vehicle traffic with an overall load of up to 60 tons, and can be installed at base depths of up to 4 metres.


Learn More about Hydro Stormbloc® Optimum Storage and Infiltration system

Photo courtesy of Cole Easdon