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Last edited 29 Jul 2019
Capability Brown - proof that engineering for sustainability works
|ICE Past President Barry Clarke, (2012/13), encourages the need to place civil engineering in context and realise the outcomes to ensure a resilient, sustainable future. Photo: Blenheim Palace, Woodstock, Oxfordshire.|
Transforming the landscape was a feature of the English Landscape Movement of the 18th century, when Capability Brown and others were in the right place at the right time to create a legacy that is still enjoyed by millions today.
The movement is an example of how civil engineering can be defined by eras triggered by policy, technology or the environment. For example, the River Navigation Acts (1651-1850), Turnpike Trusts (1707 - 1888), canals (1763-1790), railways (1821-1867), national grid (1901-1938), and motorways (1958-1996).
The characteristics of these projects are that through adaption and replacement, they can last more than one, possibly more than several, generations.
Usually they are:
- Capital-intensive with low operational costs, though their longevity means that there will be significant periods of investment throughout their life;
- Assets which are intended to be maintained indefinitely through replacement and refurbishment;
- Constructed with significant volumes of low-cost materials, and
- Complex networks that are the lifelines that society depends on for its health, wealth and wellbeing.
Creating a resilient, sustainable infrastructure requires an understanding of how it was built and maintained over several generations of civil engineers using different materials, processes and design principles.
The legacy left by Capability Brown and his peers was a result of a combination of social, economic, financial, scientific, agricultural and political change that could be regarded as the start of the modern era.
- The Scientific Revolution (16th – 18th century) marked the emergence of modern science due to developments in mathematics, physics, astronomy, biology and chemistry underpinning engineering practice.
- The Age of Enlightenment (17th – 18th century) was a philosophical movement advocating freedom, democracy and reason as the primary values of society which resulted in a decline in the influence of the church, government reformation and greater rights for the common people and a rise of the professional class – a precursor to the professional institutions.
- The Bill of Rights (1689) created a constitutional monarchy in England guaranteeing freedom of speech and freely-elected MPs from landowners.
- The formation of the Bank of England in 1694 to raise funds for government and to issue notes to promote the public good and benefit of the people by maintaining monetary and financial stability.
- The Enclosure Acts (1730 – 1780) were a precursor to improvements in agriculture, which together with trade expansion into North America and Caribbean, created wealth leading to social and political changes and increased land ownership.
- The Agricultural Revolution (1700 -1850) improved land use (land conversion, drainage and reclamation), land governance (enclosure, increase in farm size), agricultural processes (crop rotation, selective breeding) and, with improved transport (turnpikes, canals, river navigation) and markets (tariff, toll and custom free), supported a doubling in population during the 18th century.
 The impact of Capability Brown
Capability Brown was an engineer, an architect and a landscape architect who was responsible for transforming over 250 estates during that period using a signature style of a serpentine lake surrounded by pasture, woodland and parkland.
Traditional methods of construction practice and tools, known since the Roman times, were used together with contractual procedures that still exist today to undertake major earthworks, earth dams, drainage, water courses and roads, which, at the time, probably exceeded all other engineering works.
Brown’s vision was to create a landscape to provide for every need of the ‘great house’, which had to cohere, look elegant and be fit for the owner, the poet and the painter; that is, it had to meet the principles of modern design – fit for purpose, aesthetics and sustainable.
 What we can learn from past achievements
Engineering the landscape by generations of civil engineers highlights the need to place engineering in context to understand the outcomes so that the legacy created is resilient with a sustainable future that can be adapted to change.
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