Understanding The Importance Of Flood Risk Assessments And Topographical Surveys

Flooding presents a major threat to property, infrastructure, and the environment. With climate change having an increasing impact on weather patterns and thereby increasing the likelihood of flooding, early intervention becomes a key factor. Two great tools in the risk management armoury are Flood Risk Assessments and Topographic Surveys. These aid in providing information to property developers, owners, and businesses alike about land use and construction activities.

What is Flood Risk Assessment?

Flood Risk Assessment (FRA) assesses the risk of flooding in a specific area. This is generally mandated as part of the planning application process so that any development will not worsen flood risk to the site or to areas beyond the site. This assessment will broadly take into account previous flooding, precipitation, drainage conditions, and closeness to water bodies.

The benefits of undertaking an FRA are:

·       Set flood-risk zones before project planning

·       Assist in planning drainage and flood protection

·       Comply with planning and environmental law

·       Lower financial and structural risk to property owners

 

The Role of Topographical Surveys in Flood Risk Management

Topographical surveys are thorough surveys specifying what natural and man-made features are on a land area. They map out elevations, slopes, and surface drainage patterns, all of which are very useful in the flood risk assessment process.

In undertaking a topographical survey, an engineer or planner will:

·       Understand surface water drainage over the site

·       Identify potential blockage points

·       Determine ways to avoid flooding through the creation of flood measures and SuDS

·       Calculate actual costs incurred due to flood risk.

Combining Both Assessments for Effective Flood Mitigation

Flood Risk Assessment, coupled with Topographical Surveying, gives a full understanding of the flood risk on a site. Using combined data from both means that a developer can take on effective flood mitigation, such as better drainage systems and more flood-resistant building techniques.

In general, putting up these assessments not only makes one's development or purchase long-term sustainable but also meets required regulations. The fact that weather patterns have become so unpredictable makes it imperative to take proactive measures through such assessments.