10/18/2016 Pre-feasibility study is a preliminary study undertaken - - PDF document

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• Pre-feasibility study is a preliminary study undertaken to

determine, analyze, and select the best option. In this study, we assume we have more than one options then we want to we assume we have more than one options, then we want to know which one is the best in the aspects of technical, financial, social and environmental. In pre-feasibility we select the best idea among several ideas

• Feasibility study is a “go/no-go” decision point. It is obvious

that feasibilit st d ill be more acc rate than prefeasibilit that feasibility study will be more accurate than prefeasibility in all aspect

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Project area & why the project is needed

• Geographic, topographic, climatic, religious & cultural descriptions
• Population pattern

Population pattern

• Base population, growth rate, population density
• Economic and social condition
• Present living standards of various groups
• Housing conditions
• Data on education, literacy, unemployment etc
• Available water resources

Ad f f d d t t lit d tit

• Adequacy of surface and ground water w.r.t quality and quantity
• Development of water resources
• Pollution problems
• Existing water supply systems
• Existing water supply systems
• Details (Source, capacity, area served, hours of supply etc….
• No of connections tariff of existing scheme
• Need for a projects
• Improvement
• New
• Deficiencies of existing system
• Alternatives
• Major development of the industry
• Estimates of the total project cost & enumerate the major items of capital cost
• Design criteria & demand calculations
• Environmental concerns
• Land for sites
• Maps & layout of the proposed sites

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The layout should be clearly depicted through diagram &

• descriptions. It should prepared considering

p p p g

• Effective space utilization
• Safe & conductive working area for the workers
• Land improvement such as road, drainage facility etc..
• Make aware about the project to District Administration
• Arrange a meeting in the chairmanship of GA with the invitation
• Arrange a meeting in the chairmanship of GA with the invitation

to all relevant stakeholders

• Visit every stakeholders & collect necessary data
• Statistical hand books publish by District & Divisional secretariat

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• Reliability of source
• Social screening
• Social screening
• Environmental screening
• Land clearance
• Refer the similar estimate of the past project (Quantity have to be

estimated for actual work done)

• Include provision for all relevant items
• Have provisional sum items for a specific element of the works

that is not yet defined in enough detail to price

• Electricity supply
• Land acquisition
• Road authority/ railway charges
• Physical contingencies
• For any specialized input
• Include prime cost for specific items in order to maintain the

standard/quality

• Use the rates in Water Board Rate Book, District Price fixing

committee rates, Irrigation rates etc…

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 Distribution line

• Pumping or Gravity
• Distribution areas
• Main lines (From Surveyed key map)
• Main lines (From Surveyed key map)
• Extension line ( From Google Earth)
• Elevation
• Main lines (From Surveying)
• Extension line ( From Google maps, GPS, Google Earth)
• Population Survey
• Field Visits, data from GN & CBOs
• Demand Calculation

U i E l

• Using Excel
• Growth rate from Statistical hand book (District & Divisional)
• Field data
• Culvert location, type of culvert crossing
• Air valve locations, Washout Valve locations etc….
• Pipe trace (Carriage way, Hard Shoulder, Soft Shoulder etc…)
• Design using Water Cad

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Format- Field Data Sheet Approval from relevant Road Authority for reinstatement methods

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