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Wheatley Road 3 Staplemead Creamery 4 Bury Road 3 Flood Map Challlenge 4

Flood Map Challenges

We recognise that the Environment Agency flood map provides an indication of potential flood risk, but that in places, the flood zone classifications may be subject to a significant degree of uncertainty and/or error.

Through close consultation with the Environment Agency, we are able to advise our clients on the scope for improving the accuracy, which can in certain cases unblock development opportunities or increase development platforms.

Using our expertise in hydrological and hydraulic modelling (e.g. Flood Estimation Handbook; 1d ISIS and 2d TUFLOW) in conjunction with ground terrain maps and watercourse survey information from LiDAR and topographic surveys, we are able to accurately model flood outlines and hence, flood zone categorization.

Based on this detailed site specific modelling we can assess the accuracy of the published flood maps and, if appropriate submit a formal flood map challenge.

We have numerous examples of where we have have sucessfully challenged the published flood maps, with the benefit of increasing developable area, improving development platform shape and unblocking development proposals for sites that were previously blighted by perceived flood risk.