Flood Level Surveys

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What Does a Flood Level Survey Involve?
Flood Level Survey is carried out to determine areas that are prone to flooding. This survey is required to ensure that all new buildings adhere to proper flood and elevation requirements.
Flood levels are typically measured to the Mean Sea Level, a measurement that is used to decide the lowest finished floor level that any new residential or commercial property must be built to.
Before buying property it is wise to check for flood risk. Unless your property is obviously in a high position, it can be difficult for the inexperienced to determine whether or not the property is flood prone. Surveyors are experts. We can investigate records and enquire from authorities as to the flood risk for a particular property.
Observations can be made on the ground to determine the specific extent of the risk. Advice can be obtained on precautions required for new building or the likely depth of flooding which can be expected on existing buildings or land.
What does 1:5, 1:100 flood mean?
Flood levels and the extent of flooding in most cities in Nigeria like Lagos, Port Harcourt, Bayelsa etc. have been recorded for over 100 years.
This data is the basis for determining the areas of land that are affected by flooding and the expected height of flood waters.
The frequency at which various heights of flooding can be expected is referred to as once in five years (1:5), once in twenty (1:20), up to a maximum of once in one hundred years (1:100).
With many home and contents insurance policies not offering coverage for flood damage, it’s important to minimize the risk of damage to your property by not building in a flood prone area. If your property is not built on a high position, a flood survey is the most effective way to ascertain the potential for flood damage to your property. By analyzing the topography of your land as well as surrounding features, a land surveyor will be able to determine the likelihood of your property succumbing to flood damage. At Geomartins & Associate, we can provide detailed flood surveys for developers and builders in the local area.
Protect Yourself Before It’s Too Late
last thing you want is to find your property flooded. Protect yourself before you build and arrange a flood survey with Geomartins & Associate. 



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