Title: Modelling seepage and groundwater flows from natural and replenished beaches : operational investigation 582 (anglian region)
Author: Environment Agency Anglian Region
Document Type: Monograph
Abstract:
This Report describes the work conducted for the National Rivers Authority (now Environment Agency) Anglian Region RanD project 'Modelling seepage and groundwater flows for natural and replenished beaches. The work was carried out under Topic C06 - Coastal and Estuarine Works/Structures, under the Regional Operational Investigation Reference Number 582. The overall project objective is to provide improved predictions of the onset and extent of seepage through natural and replenished beaches and hence allow more effective deployment of maintenance resources during periods of severe weather. An existing finite element numerical model has been adapted to simulate seepage through shingle ridge beaches and applied to a site between Salthouse and Blakeney on the North Norfolk coast. This frontage forms part of the Kelling Quay to Cley Coastguards frontage, Coastal Unit 2 in the North Norfolk Shoreline Management Plan Sub-cell 3(a), Snettisham to Sheringham. This has indicated that seepage through the ridge is an important factor in de-stabilising the ridge during extreme events, but it is not the dominant factor. The model is to be used as a predictive tool to assess conditions where failure or severe flooding is likely to occur.
Publisher: Environment Agency
Publication Date: 1996
Publication Place: Bristol
Subject Keywords: Seepage water; Beaches; Groundwater; Modelling; Flood forecasting; Flood control; Tides; Sedimentation
Geographic Keywords: Salthouse (Norfolk)
Extent: 16; + figures
Permalink: http://www.environmentdata.org/archive/ealit:1076
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