Jal Jeevan Mission (JJM), launched on August 15th 2019, is an initiative of Ministry of Jal Shakti, Union Government of India. This initiative has envisioned to provide treated, safe and adequate drinking water to all households in rural India through individual tap connections by 2024. The government has set a target of providing tap connections to more than 190 million households in a short span of 5 years. Given the tight schedule and deadlines, the government has encouraged private enterprises to come up with innovative design mechanisms for timely completion of project. Since its announcement in August 2019, JJM has provided water supply to more than 56.3 million households in short span of two and half years and with this, as on date 46 % of households in rural India have been provided with safe drinking water supply infrastructure.
It can be understood from the above that, timely preparation of detailed design for water distribution system is one of the key milestones in completion of the project. Clear Water Dynamics (CWD), one of the consulting firms for JJM in Chamarajanagara Dist. of Karnataka State, India, have used GIS enabled PCSWMM software integrated with drone survey to achieve above mentioned goal.
Drone survey was carried out over the entire boundary of the habitation. The outputs from the drone survey namely, Digital elevation Model (DEM) and orthomosaic imagery were used as inputs for building the hydraulic networks. Design works involved sizing of distribution pipelines from Overhead Tanks in a habitation to all the households along the existing roads.
Following is the methodology used for design of water distribution network:
his procedure involves elaborate mechanism involving multiple components such drone survey, field survey, preparation of village map and design of water distribution system to arrive the project estimates. With GIS enabled interface and intuitive tools in PCSWMM, we are able to put together all the information required for the design of distribution and estimates preparation into a single place which helps in faster completion of project. With the above mentioned innovative and integrated mechanism, CWD has been able to complete preparation of detailed design reports of 600 plus habitations in record time.
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