It is a requirement of TAN 15 in Wales that a Flood Consequence Assessments are produced for any development located within identified flood risk zones. This particular development involves the relocation of an existing fuel station which is currently situated over the main River Soch. Cadarn provided the Engineering expertise in hydraulically modelling potential flood risk and determining he suitability of the site for the proposed development.
Utilising cutting edge technology, a combination of software and the innovation of talented members of the team a visualisation model of a Flood Consequence Assessment was produced to demonstrate the impact of flooding on a development land. The extent of flooding was confirmed, which varied from the Welsh Government Flood risk Advice Mapping and the acceptability of the consequences of flooding based upon the risk class of the use was completed.
Being located within a C2 flood zone area, part of the original design brief was to demonstrate if the consequences of flooding could be managed over the lifetime of the proposed development. This included significant on site investigations and surveys and the acquiring of suitable topographic and LIDAR mapping to assess the impact of potential flood receptors.
Through utilising the latest technology and techniques, Cadarn have demonstrated compliance with the requirements of TAN 15, determined a flood level on or adjacent to the site and mitigated the risks of flooding to the proposed development and potential future users. The designs have been accepted, the flood mapping changed and the development granted.