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Rural Gravity Water Supply in Nepal
Hi
We are assisting a small charity putting in a new rural gravity water supply in Nepal. A design has been done by an local engineer from the DWO which includes approx. 2km of buried pipe (50mm and 32mm dia)-he has been to site and seen the terrain. The funders are concerned over the labour cost and feasibility of burying the pipe which contours round a steep forested hillside and want to lay it on the ground instead. I think we will be using HPDE pipe and suspect using a DI pipe above ground would be more expensive than the labour costs of burying an HDPE one. I'm also concerned about damage to an above ground pipe, either intentional or by animals, people cutting foliage for animals etc. Any advice on the way forward appreciated, including some estimates of m/day of trench that can be achieved by hand in difficult terrain, I assume depth of burial should be to 1m. What is reasonable to ask the community to contribute in terms of free labour as their contribution to the project?- I've seen figures of around 20% of the capital cost?
Kind Regards
Lisa Varey Principal Engineer
01946 598927 www.westlakes.co.uk
Posted by LC Jones, RedR KP Moderator
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retagged
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Rural Gravity Water Supply in Nepal
Hi
We are assisting a small charity putting in a new rural gravity water supply in Nepal. A design has been done by an local engineer from the DWO which includes approx. 2km of buried pipe (50mm and 32mm dia)-he has been to site and seen the terrain. The funders are concerned over the labour cost and feasibility of burying the pipe which contours round a steep forested hillside and want to lay it on the ground instead. I think we will be using HPDE pipe and suspect using a DI pipe above ground would be more expensive than the labour costs of burying an HDPE one. I'm also concerned about damage to an above ground pipe, either intentional or by animals, people cutting foliage for animals etc. Any advice on the way forward appreciated, including some estimates of m/day of trench that can be achieved by hand in difficult terrain, I assume depth of burial should be to 1m. What is reasonable to ask the community to contribute in terms of free labour as their contribution to the project?- I've seen figures of around 20% of the capital cost?
Kind Regards
Lisa Varey Principal Engineer
01946 598927 www.westlakes.co.uk
Posted by LC Jones, RedR KP Moderator
