Technical Articles

What is BS EN 13661:1999


BS EN 13661:1999 is an important technical standard in the field of engineering. It provides guidelines and requirements for designing and manufacturing hydraulic steel structures, such as gates, penstocks, and stoplogs. This article aims to explore the key aspects of BS EN 13661:1999, including its scope, main provisions, and significance in the industry.

Scope and Key Provisions

BS EN 13661:1999 specifically addresses hydraulic steel structures used for water control purposes. These structures play a crucial role in managing water flow, preventing flooding, and facilitating various water-related activities. The standard sets forth detailed technical specifications for the design, materials, fabrication, inspection, testing, and commissioning of such structures.

One of the key provisions of BS EN 13661:1999 is the requirement for structural integrity and stability under severe operating conditions. It outlines criteria for assessing the hazards associated with extreme forces, such as high water pressure, impact loads, and seismic events. Additionally, the standard defines performance criteria for components like gates, ensuring they can withstand operational stresses and maintain watertightness.

Moreover, BS EN 13661:1999 emphasizes the importance of maintaining long-term functionality and durability of hydraulic steel structures. It includes recommendations for corrosion protection, appropriate surface finishes, and maintenance procedures. These guidelines aim to prolong the service life of the structures, reduce maintenance costs, and enhance overall reliability.

Significance in the Industry

BS EN 13661:1999 serves as a benchmark for engineers, manufacturers, and regulatory bodies involved in the design and production of hydraulic steel structures. Compliance with this standard ensures that these structures meet essential safety, performance, and quality requirements. By adhering to BS EN 13661:1999, engineers can design structures that withstand harsh environmental conditions and fulfill their intended functions effectively.

Furthermore, adherence to BS EN 13661:1999 helps in promoting international harmonization of hydraulic steel structure standards. This facilitates global trade and enables the exchange of expertise and best practices among professionals in different countries. Additionally, it provides clients and end-users with confidence in the reliability and longevity of the products.


In conclusion, BS EN 13661:1999 is a vital technical standard that outlines guidelines for the design and manufacturing of hydraulic steel structures. It ensures structural integrity, functionality, and long-term durability of these structures, making them safe and reliable for managing water flow. Adherence to this standard benefits engineers, manufacturers, and end-users alike, promoting global harmonization and facilitating the exchange of high-quality products and expertise.


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