Ayesa Engineering has been awarded a contract to provide project management support for Santiago Metro Line 9.

The company will provide engineering management advisory services, counterpart engineering, environmental and community relations consultancy, works co-ordination, service change management, expropriation and easement management, as well as project planning and control.

The new 27km-long Line 9 will be entirely underground and include 19 stations, along with depots and maintenance facilities. It will run through the districts of Recoleta, Santiago, San Miguel, San Joaquín, La Granja, San Ramón, La Pintana, and Puente Alto.

Line 9 – backed by a US$2.733bn investment – will be the first in Santiago to feature a four-line interchange at Cal y Canto station, located at the edge of the historic city centre. Connecting with Lines 2, 3, and 7, it will be a major transfer hub with six interchange points, easing pressure on Line 4 and providing faster, more direct routes into the heart of the Chile’s capital city.

“To integrate Line 9 with the existing network, some stations will need to be constructed at depths exceeding 40m, which presents a significant engineering challenge,” said Mariluz Ramírez, director of transport LATAM at Ayesa. “We’ll need to design highly efficient vertical transport systems to manage heavy passenger volumes between Line 9, surface access, and connecting lines.”

This latest award builds on Ayesa’s work with Santiago Metro. In 2022, Ayesa was appointed to provide technical inspection services for the installation, testing, and commissioning of systems and equipment for the Line 3 extension. The company is currently supervising civil works on sections 2, 3, and 4 of Line 7.