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False promises that have depopulated our mountains

Jesús Alcanda Vergara, Forestry engineer in the Energy division of Sacyr Water, explains in this article how land-use planning decisions have displaced Spain’s rural population over recent decades.  

Jesús Alcanda Vergara

Energy division of Sacyr Water

 

It was 1991 when my friend Luis Carlos and I met at the Natural Environment Service of Zamora with José Luis Montero de Burgos (who had served for 20 years as Head of the National Reforestation Service of the Ministry of Agriculture). We were attending a meeting with the Service’s technical staff to hear the guidelines they intended to propose for a reforestation project covering 6,000 hectares devastated by fire in the Sierra de la Culebra—a project whose drafting had been entrusted to us.

Each time the Service presented an approach, Montero de Burgos, supported by decades of experience, insisted on the need to involve local people and respect their traditional practices and livelihoods. He repeated this warning again and again, responding to every new proposal put forward by the technicians.

Eventually, the discussion shifted toward what they considered to be “the problem” posed by the residents of the Sierra, which had already been proposed as a Protected Landscape.

So enthusiastic were these technicians that, with astonishing unanimity and without the slightest embarrassment, they reached an extraordinary conclusion: that what truly did not belong in the Sierra de la Culebra was the people who lived there.

They made it clear that, in order to manage this protected natural space, the local population was “excessive,” and that it should be a priority to remove as many residents as possible.

Today, 35 years later, these technicians—some of whom have since passed away—must feel satisfied. Their wishes have almost been fulfilled: the population of this Protected Landscape has been reduced by half.

Public Administrations are quick to invoke phrases such as “land management,” abstract formulas that promise what is impossible precisely because of their abstraction.

By mobilizing staff and departments around such slogans, they forget their original purpose: to administer, to serve, to allocate resources responsibly, to care for the common good. In doing so, they betray the very etymology of the word administration. Governments and their agencies—ministries, departments, councils—are meant to govern people, not merely manage things.

By replacing the verb to administer with to manage, public institutions forget their essential role: serving society. Instead, they reduce their mission to the technical control of objects and territories, detached from the people who inhabit them.

If it is already misguided to substitute administration with “management,” it is even worse to apply this logic to something as vague and complex as “territory.” This intellectual confusion becomes outright delirium when authorities decide to grant rights not to people, but to things.

To grant rights to land, rather than to human beings, and to place those rights above human needs, is a profoundly dehumanizing act. It separates power from responsibility and regulation from justice.

Following this path leads to the idea that natural spaces themselves must possess rights—an idea that has generated a chain of ecological, economic, labor, administrative, and demographic problems that shape our present. Only willful blindness could deny this.

Let us not look away. The socio-economic decline of medium- and high-mountain regions—especially within protected areas—and their resulting depopulation have a clear main cause: the Natural Environment Administration, whatever name we choose to give it. Other public bodies have played little or no role; in most cases, their involvement has been marginal at best.

For decades, this administration has acted as the absolute “Lord of the Land,” regulating every possible use, activity, and initiative that local residents might attempt. As a result, marginalized and impoverished inhabitants have been forced to abandon their land and their homes.

Congratulations: the “land managers” can now do as they please. The people are no longer in the way. Those who remain have surrendered.
Below are several examples of population decline in municipalities located within Protected Natural Areas in mainland Spain between 1986 and 2022.
These are not just place names. They are real towns that survived for centuries thanks to the efforts of their inhabitants. Today, their descendants are being steadily pushed out. The population figures show percentage changes compared to the population at the beginning of the period. All data come from Spain’s National Statistics Institute (INE).

Let us begin with the Sierra de la Culebra Protected Landscape and Special Conservation Area, where 61,000 hectares were declared protected.

 

 
 

While Spain’s total population grew by 37% between 1986 and 2022, the population of the Sierra de la Culebra fell by 48%. This 85-point gap can rightly be called a demographic hemorrhage.

Next, consider the Montaña de Riaño and Mampodre Regional Park (León), where 101,000 hectares were protected.

 

 
 

The results are equally bleak. Acebedo, Burón, Crémenes, and Maraña have been virtually wiped out. The park has lost half of its population. If this designation had created real economic opportunities, such an exodus would not have occurred.

Finally, let us look at the Baixa Limia–Serra do Xurés Natural Park in Ourense (Galicia), where up to 30,000 hectares were protected, mostly on privately owned land.

Here, population loss reaches 67%. 
 

 
 

The figures speak for themselves.

  • From 1986 to 2022, the Montes Obarenses–San Zadornil Natural Park (Burgos) experienced a population decline of 41% across its 16 municipalities. 
  • The Sierra de Gredos Regional Park (Ávila) lost 51% of its population in 28 villages during the same period. 
  • In the Montaña Palentina Natural Park, population fell by 46% in 10 villages.
  • The Arribes del Duero Natural Park saw a decline of 52% in its 24 villages in Salamanca and 46% in its 13 villages in Zamora. 
  • In the Serranía de Cuenca Natural Park, 43% of the population left its 12 municipalities. 
  • The Sierra de Alcudia and Sierra Madrona Natural Park (Ciudad Real) lost 44% of its population across eight major municipalities. 
  • Finally, in the Alto Tajo Natural Park (Guadalajara), 35 municipalities experienced a population decline of 51%.

What has happened in these mountain regions bears the unmistakable imprint of environmental administrations, supported by an endless web of national, regional, and European laws, decrees, and regulations. Together, they have turned these agencies into unquestionable rulers of rural land.

This suffocating regulatory framework has been meticulously designed. It imposes countless prohibitions, restrictions, and obligations on both land and activities. Authorities then enforce every rule with rigor, leaving no room for local initiative or economic development.

Any positive counterexample is merely an exception that confirms the rule.

These long-term demographic trends make one thing clear: the creation of Protected Natural Areas has not delivered the promised social and economic benefits. Yet this promise continues to be repeated by new advocates of new protected areas.

When these spaces were declared, residents were promised prosperity and opportunity. We have shown that these promises were false. For half of the population, protection has meant decline, not progress.

This is what happens when rights are systematically granted to things instead of to people.

 

 

 

 

Sacyr Water secures three wastewater treatment plant contracts in Spain for €84 million

  • These projects, located in Madrid, Huelva and La Orotava (Tenerife), serve a population of more than 1.6 million inhabitants.

Sacyr Water has been awarded three new contracts in Spain, totaling €84 million. The contracts include upgrading the Huelva Wastewater Treatment Plant (WWTP), renewing the operation of the La Gavia WWTP in Madrid, and constructing a new WWTP in the Orotava Valley, Tenerife.

The Regional Government of Andalusia has awarded a joint venture, comprised of Sacyr Ingeniería e Infraestructuras (40%), Sacyr Water (40%), and UC10 (20%), a €36.3 million contract to upgrade and adapt the Huelva WWTP. The project is expected to take 27 months. The plant is designed to serve an estimated population of 180,000.

The contract includes expanding the pumping station, converting existing biological reactors, adding an additional sludge line, and renovating equipment and pipes, among other improvements. It also involves separating the impulsion collector, as well as upgrading the main pumping system and the pipeline that carries wastewater from the pumping station to the WWTP. 

La Gavia

Separately, Canal de Isabel II has awarded Sacyr Water a €30.4 million contract (Lot 2) for the operation and maintenance of the La Gavia WWTP in Madrid over four years. This plant is designed to treat wastewater for a population of more than 1.35 million.

The plant has an average treatment capacity of 2 m3/sec (172,800 m3/day) and processes wastewater from the two La Gavia collectors (Gavia I and Gavia II), as well as excess water from the La China treatment plant (South Collector).

The facility utilizes tertiary treatment to convert all treated water into reclaimed water, allowing for the discharge of high-quality water into the Manzanares River. A portion of this water is reused for irrigating green spaces and street cleaning.

The infrastructure includes facilities that produce green electricity from liquid waste generated by residents. This waste is treated and converted into biogas.

Orotava Valley, Tenerife 

The Tenerife Water Council has awarded a joint venture consisting of Sacyr Ingeniería and Sacyr Water a €17.5 million contract to construct the new Regional WWTP in the Orotava Valley, with a completion timeframe of 37 months. This plant is designed to serve a population of over 100,000.

The new WWTP will have a secondary treatment capacity of 10,000 m³/day, employing membrane bioreactor (MBR) technology and sludge treatment. The project includes pre-treatment designed for a flow rate of 20,000 m³/day, ensuring compatibility with future expansions.

About Sacyr Water

Sacyr Water is a leader in desalination and integrated water cycle management. With 30 years of experience, it has become one of the world's top 10 companies in installed capacity and the leading desalination operator in Spain.

In 2025, Sacyr Water was awarded the concession and expansion of the largest wastewater reuse plant in Latin America, located in Antofagasta, Chile. This project will secure the water supply for large-scale mining in the region, eliminate 100% of discharges to the sea, and improve water sustainability in the area.

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Sacyr begins construction on new urban highway access to Asunción, Paraguay

  • Paraguay’s President and Minister of Public Works inaugurated the groundbreaking ceremony, where they highlighted project benefits for the country. 
  • The project promises to significantly improve connectivity, reduce travel times, and enhance the quality of life for over a million people traveling to Asunción.
     

 

The Rutas del Este consortium (60% Sacyr Concesiones, and 40% Ocho A) has commenced construction of the new urban highway access to Asunción concession in Paraguay, a project poised to improve connectivity between the capital and inland cities. Total investment in the project is estimated at $180 million (€154 million).

Santiago Peña, President of Paraguay, and Claudia Centurión, Minister of Public Works and Communications, officially inaugurated the groundbreaking ceremony. President Peña emphasized: "This project will benefit all of Paraguay by adding two access roads that will alleviate traffic congestion on the main highway, which carries 80% of the country's commerce."

The project consists of a structuring road network, which has relevant works such as the Ypacaraí - Areguá variants and a 3.6-kilometer elevated urban highway, with two divided roads and four lanes and two new connections to route PY02, essential to improve connectivity between the capital and the interior:

  • The first connection, starting at kilometer 41 of Route PY02, will improve accessibility through Ypacaraí, Patiño, Areguá, and Luque.
  • The second connection, beginning at kilometer 43, will enhance accessibility to San Bernardino.

These corridors will be integrated to create a more efficient system for entering and exiting the metropolitan area.

The new road system will serve seven cities: Asunción, Luque, Areguá, Ypacaraí, San Bernardino, Nueva Colombia and Emboscada. 
 

Ruta PY02

Rutas del Este consortium previously undertook the Ruta PY02 widening and expansion project (151 km), a $520 million investment that became operational in 2023. This new section further expands its capacity and enhances its design.

This is one of the most significant road projects in the Eastern Region and the first to be executed as a Public-Private Partnership (PPP) in the country. The road stretches from kilometer 36 in Ypacaraí to kilometer 187 in Caaguazú.

The corridor impacts 11 municipalities across three departments of Paraguay. The concession covers the design, financing, construction, maintenance, and operation of the road for a period of 30 years.
 

Sacyr completes construction of the US-59 highway in Diboll (Texas, United States)

  • This project marks Sacyr’s 10th road infrastructure project completed in the United States, with a total executed investment of $1.2 billion (€1.03 million)

Sacyr has completed the construction of the US-59 highway in Diboll, Texas (USA), with an investment of $146 million (€125 million). This strategic infrastructure is part of the future Interstate 69 corridor.

With this project, Sacyr has now delivered 10 road projects in the United States—two in Texas and eight in Florida—thereby consolidating its presence in the US market with a total executed investment exceeding $1.2 billion (€1.03 billion).

The US-59 project involved the construction of a new 13.2-kilometer highway to improve regional connectivity and enhance traffic flow along one of the state’s main routes. The new highway bypasses the city of Diboll, eliminating local traffic, level crossings and traffic lights, resulting in improved road safety, shorter travel times and smoother traffic flow.

Construction of the new US-59 highway

The main works on this project involved the construction of 28 bridges and the installation of 12,000 meters of concrete barrier. More than 172,000 tons of asphalt pavement were laid.

This is the second project Sacyr has completed for the Texas Department of Transportation (TxDOT).


 

Growth in the United States

Sacyr started operating in the US market in 2018 and has won 16 projects across the country.

In 2024, Sacyr, as part of a consortium, was awarded its first major transport infrastructure P3 contract in the US: a section of the I-10 highway in Louisiana. This project will require an investment of €3 billion, of which just over €2 billion corresponds to construction.

As part of the objectives set out in its 2024–2027 Strategic Plan, the company will expand its activity in key English-speaking markets, including the United States, Canada, the United Kingdom, Ireland and Australia. 

  • P3 Projects

The Pedemontana-Veneta Toll Road: a strategic asset in Italy

We are improving connections in the Veneto region with a planned investment of 2.6 billion euros

Italy  Pedemontana Veneta

The Pedemontana-Veneta toll road is one of the most important infrastructure projects in Italy. It is also one of the biggest projects in our portfolio there, with a planned investment of 2.6 billion euros. 
The company Superstrada Pedemontana Veneta is in charge of designing, building, financing, running, and maintaining the toll road for a period of 39 years following completion of construction. 
This project involved building 162 km of road. 94 km of the main road that will link 34 municipalities and the industrial area of Vicenza and Treviso. The remaining 68 km are for secondary access roads. This road will also include two tunnels - the Malo tunnel (6 km) and the S. Urbano tunnel (1.5 km) - and eight viaducts. 
The infrastructure guarantees the high demand for mobility in the most industrialized area of the Veneto region, with close to half a million companies and 4.9 million inhabitants. 

2.6

BILLION EUROS

Total investment in the project

162

KILOMETERS

Newly built road

7.5

KILOMETERS

Tunnels 

Sustainable project

The highway’s environmental impact is minimal, given that 70% of the route runs through a trench or tunnel. It presents no visual disruption or noise, nor does it constitute a barrier since it is virtually invisible from preexisting roads, services, canals, and wildlife areas.

The project was designed and built using the latest innovations in safety, technology, and sustainability, including Sacyr’s Iohnic lighting system and sound-absorbing, antiaquaplaning, photocatalytic asphalt (which attracts contaminating particles and, in conjunction with light, oxidizes nitrates and carbonates).

In addition, the colors of the trench walls vary according to municipality, making it easier for drivers to orient themselves. Pedemontana has transparent noise barriers so as not to reduce the visibility or illumination of the platform.

Pedemontana-Veneta (Italy)

Award-winning financing

The Pedemontana-Veneta toll road is part of the European TEN-T network. It is considered a nationally significant strategic asset on account of its location between the existing A4 and A27 toll roads, crossing the Veneto Region and passing through the provinces of Vicenza and Treviso. The construction of this toll road was financed by means of the largest bond issue in Europe for a greenfield project, to the tune of 1.571 billion euros. The issue has been awarded four international prizes.

  • Transport infrastructure
  • Sacyr Concessions
  • Autopistas
  • Italy

Let AI do the Planning!

We're leveraging cutting-edge AI to generate construction plans that improve projects and accelerate timelines.

Planning is a critical task in any infrastructure project, and improving this phase and speeding up its timelines is crucial for subsequent success.

For this reason, we've launched an initial innovation pilot using Miranda AI, an artificial intelligence tool, which will assist our Planning department in this vital task.

This tool was developed in collaboration with CrataAI, a startup that answered our call in the "DesafIA" challenge program of the Madrid City Council.

 

 
 

 

"We proposed a challenge to reduce deadlines in construction projects, and the Madrid City Council saw its potential to include it within the DesafIA program," explains Raúl Crespo, Planning Manager at Sacyr Engineering and Infrastructure.

"This project has allowed us to solve a business challenge through open innovation, participating in a Madrid City Council program, and selecting a startup, CrataAI, which convinced us with their thorough understanding of the proposed use case and the flexibility of their solution," adds our Open Innovation Manager, Mario Ibeas.

Miranda AI can provide significant time savings for repetitive tasks, reducing the time it takes to develop the initial planning we do when undertaking a project, automating many of the steps thanks to the use of artificial intelligence.

 

What does Miranda AI do?

 

1.    Automatically analyzes technical documentation
2.    Generates complete construction plans in minutes, ready to validate
3.    Identifies measurements, materials, yields, and dependencies
4.    Detects gaps, missing activities, and planning risks

The AI will help the Planning team gain reliability in deadlines and agility to make work hypotheses. "We cannot guess what will go well or badly, but if we know that the weather will be adverse, we can make plans. We would gain a clearer vision of what might happen to us in the future," explains the Planning Manager.

 

 
 

"This is an innovation challenge that we had tried to address in the past, but the technology was not yet mature. Now, with the Crata pilot and the opportunity to collaborate in the DesafIA program, it has become a reality," emphasizes Mario Ibeas.

"The objective is to have a base program to work on, not to replace work, but to change manual work for work of greater value, more focused on being able to do analysis or look for optimizations," explains Raúl Crespo.

For the moment, Sacyr is evaluating the tool. The ultimate goal is for it to be able to execute any type of work: civil, building and industrial. The first stage of this process could be completed in three or four months.
 

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