New flood zones in the Balearic Islands: what changes with their official delimitation

  • The Balearic Water Council has delimited four new flood zones in Mallorca outside of the ARPSI areas.
  • The Sant Miquel, Son Armadans, sa Síquia (next to the airport) and Campos basins are integrated into the official risk mapping.
  • The information is incorporated into the IDEIB and will be directly applicable to urban planning and administrative files.
  • The measure is part of the update of the EPRI and the Pla Hidrològic de les Illes Balears to strengthen flood prevention.

Map of flood zones in the Balearic Islands

El Consell Balear de l'Aigua has taken a significant step in territorial management by approving the delimitation of four new flood-prone areas in the Balearic Islands which until now were not included on official risk maps. Although they are not considered areas of significant potential risk, they have been found to present sufficient danger to require specific attention.

These areas become part of the official mapping of flood zones of the community, which implies direct changes in the processing of urban development projects and infrastructure planning. With this decision, the Balearic administrations strengthen their tools to anticipate possible episodes of intense rainfall and avoid greater damage in a context of increasingly extreme weather events.

Four new hotspots on the risk map

Areas at risk of flooding in the Balearic Islands

The newly delimited areas are located in torrent basins and particularly sensitive areas of the island of Mallorca. Specifically, these are the torrents of Saint Michael, Son Armadans, the section of Sa Síquia next to Palma airport and Campos area, a municipality with an orography and land use that make it vulnerable to water floods.

Each of these areas already has completed technical studies These reports have allowed for a precise definition of the extent of land exposed to potential flooding. Based on these reports, the Balearic Water Council has validated their inclusion in the official maps, thus fully identifying the areas where extra precautions should be taken.

The fact that these basins are now mapped as flood zones means that, from now on, any building permit, urban development project or administrative file Any project affecting these areas must take into account restrictions associated with water risk. In practice, this may translate into limitations on building density, requirements for additional drainage measures, or modifications to infrastructure design.

The administration emphasizes that these are not areas classified as Significant Flood Potential Risk Areas (ARPSI)That is, they are not in the highest risk category, but they do present conditions that make a specific planning and controlIn other words, action is taken in advance to avoid surprises when episodes of heavy rainfall occur.

In addition to these four specific points, Other areas of the Balearic Islands are still in the analysis phaseThe Ministry of the Sea and the Water Cycle has explained that the work does not stop here, but is part of a progressive process of reviewing the territory to identify more sections susceptible to flooding and, where appropriate, incorporate them into the official map.

Integration into official cartography and IDEIB

The new boundaries have been incorporated into the Infrastructure of Dades Espacials de les Illes Balears (IDEIB)The platform that brings together the community's reference geographic information. This allows administrations, professionals, and citizens to have access to quick and transparent access to the updated data on flood risk.

By being included in the IDEIB, these flood zones become a basic reference tool for technicians and municipalities Official maps are essential when designing urban plans, evaluating new developments, or reviewing existing infrastructure. For example, they allow a local council to determine if land designated for new facilities is located in an area prone to water accumulation.

Incorporation into cartography implies its immediate application in the processing of filesThis means that technical reports must take into account the new layers of risk, and that the competent authorities may require corrections or conditions where it is detected that a project conflicts with these flood zones.

The Government emphasizes that this update is part of the continuous review of risk mapping promoted by the Regional Ministry. The objective is to adjust the maps to the current reality, marked by changes in the territory, increased urban development pressure in certain areas and the impact of climate change on rainfall and runoff patterns.

In parallel, the integration of information into a common system like IDEIB facilitates the coordination between departments and administrative levelsEnvironment, urban planning, emergencies, and water resources share the same cartographic base, which helps to make more coherent decisions when planning actions on the ground.

Impact on urban planning and security

The declaration of these new flood zones is not a mere technical formality: it has practical consequences for how the land is managed. It organizes the territory and authorizes construction.In areas classified as flood-prone, the authorities can impose limitations on construction, require minimum height limits, water evacuation systems, or prohibit certain particularly vulnerable uses.

In the case of torrents of Saint Michael y Son ArmadansThe delimitation provides a clear reference point in areas where urban development pressure has been significant in recent decades. Having a official delimitation of flood zones It will allow for adjusting urban growth and minimizing problems when torrential rain events occur.

The strip of Sa Síquia next to Palma airport It takes on special relevance due to its proximity to a critical infrastructureIncluding this area in the risk mapping facilitates the evaluation of future projects linked to the airport environment, where any incident resulting from flooding could have a considerable impact on the mobility and safety.

In the municipality of FarmlandsDelineating the flood zone helps guide decisions about new residential, agricultural, or tourism developments. Precise knowledge of the areas that may be affected by flooding allows local authorities to make informed decisions. plan with more judgment and reduce the exposure of homes and businesses.

Overall, the measure reinforces the idea that territorial planning must take into account the water risk managementIt is not just about reacting when floods occur, but about incorporating this variable into the design of cities, infrastructure and land use, so that the impact of extreme events is as small as possible.

Update of the EPRI and the Balearic Hydrological Plan

The approval of these four flood zones took place in a session of the Consell Balear de l'Aigua focused on monitoring the main hydrological planning instruments for the islands. The meeting was attended by Councilor Juan Manuel Lafuente and the General Director of Water Resources, Joan Calafat, among other technical managers.

This meeting also addressed the review and updating of the Preliminary Assessment of the Flood Risk (EPRI) corresponding to the third planning cycle. This tool, common in the European Union, serves to identify the areas most exposed to flooding and prioritize the necessary actions, following the guidelines of the Floods Directive.

Progress in the Important Items (ETI) Schemes linked to Hydrological Plan of the Balearic IslandsThese documents outline the main water-related challenges in the archipelago, ranging from resource availability to quality. ecological status of aquatic ecosystems and, of course, flood management.

The incorporation of new flood zones into official maps is understood as a one more piece of this planning machineData from detailed technical studies feeds into the EPRI, which in turn guides the strategic decisions of the Hydrological Plan, thus closing the circle between analysis, planning and practical application on the ground.

In this way, the Balearic Islands align themselves with the European requirements regarding risk preventionWhile adapting its policies to a local reality in which episodes of torrential rain can cause significant damage in urban and rural areas if adequate planning is not in place.

With the delimitation of these four new flood zones in Mallorca, the incorporation of the information into the IDEIB and the simultaneous review of the EPRI and the Pla Hidrològic, the Balearic institutions strengthen their capacity to anticipate floods and reduce their impactThe commitment to more refined risk mapping and to administrative procedures that take into account the behavior of water on the land lays the foundation for more prudent development, in which the safety of people and property takes precedence over the indiscriminate occupation of land.

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