Surface Water Management Solution

The Geocellular Stormwater Management System is Designed to Stack for Shipment, Saving Space and Transport Costs at Three Bridges, Near Crawley, Has Been Supplied by ACO Water Management

The project required two stormwater attenuation tanks to meet site hydraulic requirements and to collect flows from the shed roofs and highways.Also, the project required a series of drainage channels to collect trade effluent flows from maintenance building services pits, train wash facilities and track in front of buildings; these flows then went to the sewer.

Two ACO StormBrixx tanks, of 1,150m3and 370m3volume, were integral to the surface water solution. The geocellular stormwater management system is designed to stack for shipment, saving space and keeping transport costs to a minimum. With smaller delivery vehicles required to reach the Three Bridges site, this meant deliveries were minimised - ACO StormBrixx was supplied using around 75% less deliveries than would have been required for comparative tanks.

A series of drainage channels were also used on site. For the efficient removal of fluids from the service pits in the main train care and wash-down facilities ACO supplied 1,500m of ACO MultiDrain MD channel drainage, fitted with sump units and roddable foul air traps to prevent debris from entering the drainage system.

The new rail depot is part of the Thameslink rolling stock project, which is an initiative to provide additional passenger capacity and remove bottlenecks on the London commuter network. The project is led by Siemens, with Hyder Consulting as the consulting engineer working for main contractor Volker Fitzpatrick, and is due for completion in 2015.

Source: WWT

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Taxonomy

• Stormwater
• Water Management