Humberside Police Headquarters - Redesigned to save time and reduce cost
Humberside Police HQ in Hull lies in an area particularly vulnerable to flooding. On June 23rd 2007 the worst happened and the site had to be evacuated. Within a year, plans were being developed to prevent a recurrence.
Flood-proofing would include construction of a 500-metre perimeter earth bund. Attenuation tanks would be required to cope with intensive rain run-off within this boundary. There were a number of site constraints: existing services running over the proposed tank locations, and very shallow drainage. The first project design proposed 4 tanks placed above a pipe with top perforations to feed water into the temporary storage tank via a granular distribution layer.
The suggested switch to AquaCell gave us some valuable extra flexibility for creating the buried tank capacity. When the original design was scrutinised, it was shown how we could do it with one less tank. So it also reduced the amount of excavation necessary.Steve Farrow , Construction Manager Sangwin Civil Engineers
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