Ambitious urban regeneration project

Client: Madrid City Council
Date: 2024 - 2026
Location: Madrid (Spain)
Sector: Transportation
Subsector: Tunnels and Underground Spaces
Investment: €400 million

Challenge
Our work
Added value

Challenge

The Southwest Green Corridor is one of Madrid’s most significant urban transformation and regeneration projects. Promoted by the city’s municipal government, the initiative aims to reconnect the neighborhoods of Lucero, Aluche, and Las Águilas with Campamento and Casa de Campo, which have been divided since 1968 by the A-5 highway.

This initiative seeks to enhance residents’ quality of life and foster a healthier, more sustainable environment in Madrid’s southwest.

The megaproject has two main components:

The construction of a 3.2-kilometer tunnel to bury the A-5—used daily by 80,000 vehicles—and its connections with the M-30 ring road.
The creation of a green pedestrian and cyclist promenade, featuring nearly 7,300 new trees, linking Casa de Campo with the Puerta del Ángel area and Madrid Río.

The Madrid City Council has awarded one of the two planned contracts to the joint venture comprising Ayesa (50%), Alauda Ingeniería (30%), and Icyfsa Ingeniería (20%). This lot involves providing technical assistance to site management for the supervision and monitoring of works along the Batán–Avenida de Portugal section. The contract value exceeds €171 million.

Our work

Given the scale of the project, the allocated budget, and the implications for mobility and affected services, the technical assistance provided by this business consortium will be critical.

This phase of the works involves connecting the new three-lane tunnel with the existing one on Avenida de Portugal, as well as creating a bidirectional bike lane linking to Madrid Río.

Added value

The Southwest Green Corridor will restore over three kilometers of continuous urban fabric, removing longstanding barriers between neighborhoods. It will also improve road and public transport mobility, contributing to enhanced road safety across the area.

Burying the A-5 and transforming its surface into a boulevard will reduce traffic and pollution emissions by 90% while improving pedestrian safety. Walking routes will be enhanced through wider sidewalks and 33 new pedestrian connections—more than double the previous 16.

Energy efficiency is one of the project's core challenges. To meet this goal, the corridor will feature a photovoltaic installation to generate clean energy for tunnel operations while also providing shaded areas along the boulevard.

"Developing large-scale, intelligent, and sustainable infrastructure to drive regional progress and competitiveness, and to improve citizens’ quality of life, is at the heart of Ayesa’s value proposition”.

Álvaro Bravo

Head of Site Supervision and Control at Ayesa