# Presented by- Assistant Executive Engineer, Water Resources Department Government of Maharashtra. 15 th Induction Training: WALMI Abad. 29 April 2008 1.

## Presentation on theme: "Presented by- Assistant Executive Engineer, Water Resources Department Government of Maharashtra. 15 th Induction Training: WALMI Abad. 29 April 2008 1."— Presentation transcript:

Presented by- Assistant Executive Engineer, Water Resources Department Government of Maharashtra. 15 th Induction Training: WALMI Abad. 29 April 2008 1 PPT Downloaded from http://www.pravinkolhe.com/

Worksheets for- Computation of BCR according to CWC Guidelines. Preliminary Irrigation Programme. Design of Drip & Sprinkler Irrigation System. Land leveling. Rate of Infilteration 2 PPT Downloaded from http://www.pravinkolhe.com/

Feasibility tests: Engineering/Technical feasibility Economic feasibility Financial feasibility Social feasibility Political feasibility Environmental feasibility Discounted Cash Flow Techniques: Benefit-Cost Ratio (BCR) Method Net Present Worth method Internal Rate of Return (IRR) Method 3 PPT Downloaded from http://www.pravinkolhe.com/

BCR continue… Compounding: It is the process by which future values of the present payments can be determined with certain interest rate. Discounting: It is the process by which future payments can be converted to present by a discount rate. Worksheet for BCR computation 4 PPT Downloaded from http://www.pravinkolhe.com/

5 Worksheet for PIP

6 PPT Downloaded from http://www.pravinkolhe.com/ Design of Sprinkler Irrigation Method Design of Drip Irrigation Method

Objective Better Aeration Efficient Water Application Better drainage, without erosion. 7 PPT Downloaded from http://www.pravinkolhe.com/ What is Land Forming: Process of providing planned grade for better aeration and efficient water application on farm.

Land Forming Techniques 8 PPT Downloaded from http://www.pravinkolhe.com/ Land Smoothening: Process of forming uniform slope in the direction of irrigation without changing the natural land slope. Land Grading: Process of developing desired land slope in the direction of irrigation by changing natural land slope Land Leveling: It is the process of giving zero slope in the direction of irrigation and as well as in cross direction.

Land Leveling This technique is mainly used for basin irrigation where low land paddy is grown and field-to-field irrigation is practiced. 9 PPT Downloaded from http://www.pravinkolhe.com/ Worksheet for Land Leveling

Infilteration: It is the downward entry of water into the soil. Infiltration rate (Ir): The actual rate at which the water enters the soil under specified conditions Cumulative Infiltration (Y): It is the quantity of water that enters the soil in a given time Measurement of Infilteration: 10 PPT Downloaded from http://www.pravinkolhe.com/ 1 Concentric Cylinder Infiltrometer 2 Basin Ponding Test. 3 Blocked Furrow Infiltrometer

Concentric Cylinder Infiltrometer Worksheet for Rate of Infilteration 11 PPT Downloaded from http://www.pravinkolhe.com/