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Mace: The Peru Reconstruction with Changes programme

Operating under the UKDT partnership with Arup and Gleeds

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  • What we know
  • What we’re doing
  • What it’s worth

What we know

El Niño is a climate pattern that has an impact on ocean temperatures, the speed and strength of ocean currents, the health of coastal fisheries, and the weather. 

It produces widespread and sometimes severe changes in the climate from Australia to South America, and climate change appears to be increasing the frequency and severity of El Niño events. 

In 2017, El Niño Costero had a devastating impact on communities across Peru. Heavy rain led to coastal flooding and erosion, causing over US$5bn of damage to critical and social infrastructure. Highways, hospitals and schools were damaged, hundreds of thousands of people lost their homes and many more lost precious farmland.

To expedite action, Peru selected the UK as a delivery partner in 2020, under a government-to-government contract, to restore critical infrastructure and improve socio-economic opportunities for communities and businesses across the country.

What we’re doing

As part of the agreement for the reconstruction programme, Mace was appointed, alongside Arup and Gleeds, on the UK Delivery Team to support the Authority for Reconstruction with Changes (ARCC).

They improved the safety, security and opportunity for the people of Peru by building and renovating 74 schools and 15 new health centres, as well as creating 51,000 hectares of reforestation, afforestation, terracing and revegetation, and supporting the development of 20 flood defence projects.

Despite challenges imposed by the COVID-19 pandemic, the delivery team hit the ground running through remote mobilisation of over 100 specialists, working closely with ARCC colleagues in Lima, Piura and Trujillo in northern Peru.

The five-year programme aims to not only rebuild and restore for the 1.5million people impacted, but build resilience by creating green and brown infrastructure that will reduce the risk of future flooding and landslides.

From river defence works, to dams and water flow control, and natural infrastructure, our integrated management plan spans 19 river basins, five gullies and seven new urban drainage systems.

The portfolio additionally includes the procurement for seven city drainage system projects and an Early Warning System covering seven regions of Peru, and delivery of an extensive training and knowledge-transfer programme.

illustration of three birds in navy

What it’s worth

Through the reduction in the risk of natural disasters due to mass movements and floods, the Peru Reconstruction with Changes programme will minimise exposure, reduce vulnerability and increase the resilience of people, property and the environment in Peru.

The very nature of the programme is about improving the lives of local communities and creating opportunities now and for decades to come. To date, all projects within the portfolio have received environmental and sustainability training, 9,000 jobs have been created for local workers, and five schools have been relocated to more suitable locations to improve future resilience.

Biodiversity is playing a central role in the programme with the creation of new forests in desolate areas, and the implementation of a GIS platform will enable the health of trees and biodiversity survival rates to be monitored.


The Peru Reconstruction with Changes programme is a leading example of how global best practice can leave a sustainable legacy for people for generations to come. The benefits go far beyond the delivery of the individual projects, as the programme provides thousands of employment opportunities for local communities, upskilling of labour, and contributes to important socio-economic growth.

Jason Millett CEO for Consultancy, Mace

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