Consulting on flood risk management


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Ramboll is a leading multidisciplinary independent consultancy company. Our energy experts provide our costumers with cost-effective energy and climate solutions that meet today's standards. We are among the leading consultants in the world within important energy, climate mitigation and climate adaptation services. We draw on multidisciplinary expertise to create innovative, sustainable and livable solutions for our costumers and society.

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Floods cause distress and damage wherever they happen and flooding from rivers, estuaries and the sea threatens many millions of people.Ramboll provides an integrated service in all aspects of flood risk management and design.

Ramboll’s flood risk management teams offer high quality integrated services for all stages of a project — from initial studies and options appraisals to cost-effective design solutions, regulatory approvals and ongoing assessment after completion. We assess flooding potential from all sources, including coastal waters, rivers, surface water, man-made structures such as reservoirs, groundwater, overland flow, site drainage and public sewers.

Our engineers have an in-depth understanding of how flooding can affect a development and we clearly communicate flood risks to clients and project design team members. This ensures that flood risks are understood, fully assessed and appropriately mitigated, and that the full potential of a site is maximised. Our clients include architects, developers, landscape architects, land owners, property managers, investors and insurers. We provide services to the government’s Environment Agency and to local authorities and county councils

Our services include:

Acquisition and feasibility

• Hydrological assessment and surveys

• Due diligence studies, masterplanning and site proposals

• 1D/2D hydraulic modelling, and floodplain mapping

• Flood estimation and flood defence appraisal

• Stakeholder engagement

• Cost benefit analyses

• Breach assessment

Planning and design

• Planning advice, regulatory approvals, the discharge of planning conditions

• Flood risk assessment (FRA) for PPS25, TAN15, SPP7, BREEAM, Code for Sustainable

Homes, LEED

• Drainage assessment and sewer modelling

• Sustainable urban drainage system (SUDS) design

• Flood defences design

• Flood alleviation schemes

Construction and operation

• Contract documentation, specification and project management

• Environment Agency permits, consents and licences

• Site supervision and temporary works consents

• Flood warning and evacuation plans

• Preparation of operation and maintenance (O&M) manuals

Other related services

• Strategic flood risk assessment (SFRA)

• Surface water management plans (SWMP)

• Water Framework Directive studies

• River restoration

• River and coastal engineering

• Water cycle studies

• Low flow studies

• Fish pass, trash screen and culvert design

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Primary contact
Anders Dyrelund
+45 51 61 10 00