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School of Chemical and Environmental Engineering

Now offering two distinct diplomas: Chemical Engineering and Environmental Engineering

Design of Hydraulic Structures


School Chemical and Environmental Engineering
Course Level Undergraduate
Direction Environmental Engineering
Course ID ENVE 531 Semester 8th
Course Category Required
Course Modules Instruction Hours per Week ECTS

Lectures and Tutorials

T=2, E=1, L=0

Course Type Scientific area
Instruction/Exam Language Greek
The course is offered to Erasmus students No
Course URL https//   (in Greek)



Learning Outcomes

By the end of the course, the student has the necessary knowledge and skills to:

  • Calculate water demand per user type, “design flows” and temporal variation of consumption, return periods, rain curves, flow speeds limits and minimum slopes.
  • Analyze design elements for water distribution systems, sizing of drinking water tanks.
  • Apply basic hydraulic delineation principles, Hardy-Cross method for internal network design.
  • Select suitable materials and dimensions of water supply and sewerage pipes.
  • Evaluate the adequacy of sewage and rainwater systems in an urban environment.
  • Recognize water supply and sewerage works in relevant studies.
General Competencies/Skills
  • Search, analysis and synthesis of data and information, using the necessary technologies.
  • Promoting free, creative and inductive thinking.
  • Project design and management.
  • Awareness of th importance of the natural environment.
  • Teamwork.


Hydraulic Works is a basic engineering design course. The course deals with practical application of design concepts and dimensioning of all individual components for urban water supply and sewerage:

  1. Introduction to urban hydraulic works. Historical development of hydraulic works. Anthropogenic impacts in water resources.
  2. Principles of hydraulics in urban hydraulic works, characteristics of uniform flow, energy losses, methods for hydraulic calculations.
  3. Water supply facilities. Design elements and layouts of water distribution systems.
  4. Time scales, water consumption, demand calculation, design population and planning period, seasonal and diurnal variation of water demand, design flows.
  5. Spatial allocation, sizing and design of drinking water tanks.
  6. Sizing of pumping stations pipes, water hammer, cavitation.
  7. Distribution pipe network in urban areas.
  8. Mathematical simulation and network analysis, Q-Cross application for iteratively solving for flows in a pipe network.
  9. Sewerage: definitions - key concepts, systems and layout of networks, network design and analysis.
  10. Hydraulic principles of sewer flow.
  11. Sewage and rainwater discharge estimation, rational method, return period, rainfall curves.
  12. Sewage pipes, materials and components, simulation of rainwater discharge network, speeds limits and minimum slopes.
  13. Basic sewage and rainwater drainage networks problems.


Lecture Method Direct (face to face)

Use of Information and Communication Technology

  • E-class support.
  • Processing of time series datasets.
Instruction Organisation Activity Workload per Semester
- Lectures 26
- Study and analysis of the literature 10
- Tutorials 13
- Group project 26
Course Total 75

Assessment Method

Ι. Final exam (70%): problem solving

ΙΙ. Group project (Project) 30%.


  • I. Tsanis, Hydraulic Works. Teaching notes, Design work and exercises, Technical University of Crete, School of Environmental Engineering, February 2018.
  • A. Efstratiadis and D. Koutsoyiannis, Notes of Typical Hydraulic Works - Part 2: Distribution Networks, Department of Water Resources, Hydraulic and Maritime Engineering - National Technical University of Athens, 2006
  • D. Koutsoyiannis, Notes on Urban Hydraulic Works - Part 2: Sewerage, Water Resources, Hydraulic and Maritime Engineering - National Technical University of Athens, Athens, 2000.


Course Instructor: Associate Professor A. Koutroulis (Faculty - ChEnvEng)
Lectures: Associate Professor A. Koutroulis (Faculty - ChEnvEng)
Tutorial exercises: Associate Professor A. Koutroulis (Faculty - ChEnvEng)
Laboratory Exercises: