Ibiza Begins Infrastructure Works in es Pratet to Reduce Flooding and Prevent Wastewater Discharges

08 November 2026

Ibiza Town Council has begun work to modernise the hydraulic infrastructure in es Pratet, one of the areas of Ibiza Town historically affected by flooding and wastewater overflows during periods of heavy rainfall. The project includes installing new rainwater drainage pipes, separating stormwater from wastewater networks and sealing infiltration points in the existing sewerage system.

The works are already under way, with new drainage infrastructure being installed in Carrer del Diputat Josep Ribas. The intervention forms part of a wider investment programme linked to the new municipal water-service contract awarded to Aqualia in October 2026.

The objective is to improve the city's ability to collect and evacuate rainwater, reduce pressure on the sewage network and prevent overflows that can result in wastewater reaching streets and surrounding waters.

Separating Rainwater and Wastewater Networks

One of the main problems affecting es Pratet during heavy rainfall is the interaction between rainwater drainage and the wastewater network.

When large volumes of rainwater enter the sewerage system, the additional flow can exceed the network's capacity, increasing the risk of overflows and flooding.

The new infrastructure is designed to address this problem by allowing rainwater and wastewater to travel through separate networks.

New drainage pipes will collect rainwater independently, improving its evacuation and reducing the amount entering the sewage system.

The project also includes sealing infiltration points in the existing wastewater network, helping prevent unwanted water from entering the system.

These improvements are particularly relevant in es Pratet, where the area's low elevation has historically contributed to water accumulation during periods of intense rainfall.

New Drainage Infrastructure in Diputat Josep Ribas

The first works include the installation of new rainwater drainage pipes in the neighbourhood.

A new section of piping has been installed along Carrer del Diputat Josep Ribas, as part of the broader separation of the two drainage networks.

The intervention is intended to improve the collection and evacuation of rainfall, particularly in areas where existing infrastructure has struggled to cope with substantial volumes of water.

The project also forms part of a wider programme to modernise Ibiza's municipal hydraulic infrastructure, including the renewal of existing pipes and improvements to urban drainage systems.

Traffic Changes and Parking Restrictions in es Pratet

The construction works are already affecting traffic and access in parts of the neighbourhood.

According to Ibiza Town Council, temporary modifications to traffic direction, parking restrictions and access to certain locations have been introduced over recent weeks to accommodate the construction activity.

Residents and drivers are being advised to follow the temporary road signs and instructions displayed in the affected streets.

The Council is also encouraging residents to consult municipal communication channels for updates concerning access and traffic arrangements as the works progress.

No definitive completion date or comprehensive schedule for all the affected streets has been announced in the information currently available.

Aqualia Contract Includes €17 Million in Infrastructure Investments

The improvements in es Pratet form part of a wider investment programme associated with Ibiza Town Council's new municipal water-service contract with Aqualia, signed in October 2026.

The agreement includes a commitment of €17 million in infrastructure investments during the first eight years of the contract.

In addition, a separate infrastructure improvement fund will provide approximately €2 million annually.

The investment programme is intended to modernise the municipality's hydraulic infrastructure, with priorities including the separation of rainwater and wastewater networks, the renewal of drainage pipes and improvements to urban water evacuation systems.

These investments are expected to support a longer-term improvement in the management of rainwater and wastewater throughout Ibiza Town.

Addressing Longstanding Flooding Problems in Ibiza Town

The works in es Pratet respond to longstanding infrastructure problems affecting parts of Ibiza Town, particularly during episodes of heavy rainfall.

Separating the two drainage networks should reduce the volume of rainwater entering the sewage system, helping limit the risk of overflows and improving the efficiency of wastewater management.

The improvements are also relevant to the prevention of wastewater discharges, an issue that has attracted renewed attention following recent incidents in Ibiza Port.

However, the effectiveness of the new infrastructure will depend on the completion of the works and the wider modernisation programme.

For residents of es Pratet, the current construction marks the beginning of a new phase of investment intended to improve drainage, reduce flooding and strengthen the city's ability to manage increasingly demanding rainfall events.

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