Cover Image
close this book A training manual in conducting a workshop in the design, construction, operation, maintenance and repair of hydrams
close this folder Session 17: Site development (2 hours)
View the document Handout 17A: Settling area - take-off system
View the document Handout 17B: Hydram box
View the document Handout 17C: Guidelines/checklist
View the document Handout 17D: Site development
View the document Handout 17E: Glossary of terms

Session 17: Site development (2 hours)

Time: 2 Hours

Objective: At the end of this session, participants will be able to:

· describe various construction techniques for the major components of a hydram system, i.e., take off from the source, hydram box, storage facility and necessary piping, and

· develop cost estimates for total systems.

Overview: During this session, participants will describe present construction techniques at their sites and compare them. If participants have little/no experience in water development, simple techniques will be described. This session is not intended to provide construction skills for ram components.

Materials: Handouts Costs lists developed prior to workshop, especially PVC and galvanized pipe, concrete Approximate costs developed during construction of hydrams in workshop. Chalkboard, chalk or flipcharts and markers



1. Introduce the session with a brief statement that so far the workshop focus has primarily been the hydram itself and that we now want to look at a bigger picture, i.e., the system. State the objectives of the session and review Handout 2B.

10 min.

2. Take off from source. Ask participants to describe methods they're familiar with for taking water off a stream and/or catching springs. Generate a list of design issues and write these on board/flip chart. If participants are not familiar with systems, trainer should describe settling basin, spring catchment, and group should identify in-country resources for developing water sources.


3. Ask participants how to protect hydram itself: keeping drive pipe rigid, free of bends, providing adequate drainage, avoiding damage by animals, vandals, or to curious people/children. Develop guidelines for construction of hydram box, per Handout.

10 min.

4. Storage Facility. Repeat Step 2 for storage facilities.

10 min.

5. Have participants size a ram for their application, and cost out the entire system, using the workshop estimates, their knowledge of skilled labor rates. If participants do not have a specific application in mind, develop a sample problem, using information generated in workshop to date, i.e.,

45 min.

cost of rams built


maximum h:H for these rams


approximate 1 and L


provide hypothetical q


Check computations to ensure that all components accounted for.


6. Ask participants what, if any, additional issues are raised by these site development considerations in terms of costs to community, current systems that hydram could run off of, existing storage systems, costs for reticulation.


7. Summarize by stating that all of these must be considered in overall hydram system. Distribute Handouts 17 C, D, and E.