1. Field Training at DIRD, Pune
By-
Er. Pravin Kolhe
Er. Jaywant Shinde
Er. Sandeep Nalwade
Er. Bapusaheb Gade
Er. Vijaykumar Thorat
Er. I.M. Chisti
25 Jan 2008
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2. Content
Introduction
Inauguration and
Lectures
Site Visit and problem
identification
Tests in lab
Design Schemes and
remedies
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3. Introduction
As per schedule of
training program we
joined DIRD, Pune
on 21st January
2008 to study about
the drainage
systems.
One week training
ended on 25th
January 2008.
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4. Inauguration
Venue: C.C. Inglis
Hall, DIRD Pune
Hon’ble Guest:
Er. K.M. Shah Saheb,
Superintending
Engineer and Director
of DIRD,
Er. Giri Saheb,
Superintending
Engineer
Er. Shivaji Rajale,
Executive Engineer,
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5. Lecture: Land Drainage and
Reclamation Technology
Er. Rajale saheb
explained-
Types of stresses
faced by crop
Diagnostic criteria of
salt affected land and
water.
Remedies for saline
and water logged land
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6. Lecture: DIRD Procedure and
Practice
Shri. Kapare saheb
explained about-
Activities of DIRD
Classification of salt
affected and water
affected area
Classification of drain
Future strategy
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7. Lecture: Soil Survey Techniques for
Irrigation Projects
Shri. Amritkar saheb
explained-
Purpose of soil
survey
Types of soil survey
Soil Series
Parameters of soil
series-
Place/Location/Village
Soil Texture
IAR norms for depth
DIRD norms for depth
Slope classes
Erosion classes
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8. Site Visit: Water logging
Site: ‘Additional
Mandavgan Drainage
scheme’, Ganegaon, Tal-
Shirur.
Observations-
Well Water Level and
sample collection
Soil sample collection
Drain discharge
measurement
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9. Water Logging
We observed 18
wells in the given
catchment and
collected 2 well
water samples.
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10. Field Visit: Salinity
Salts can be
observed on soil.
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11. Field Visit: Crop Damage
Damaged crops are
also observed at site
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12. Field Visit: Sample Collection
24 samples of soil
were collected from 6
auger holes at
following depths-
1. 0-20 cm
2. 20-40cm
3. 40-80cm
4. 80-120cm
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13. Tests on Soil and water Samples
Tests on soil-
EC: Electrical
Conductivity
pH
Hydraulic
Conductivity
Saturation
Mechanical Analysis
Tests on water-
EC
pH
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14. Test Results
It is observed that all
the soil samples
were saline. i.e.
EC>3 and pH>8
The well and drain
water is also saline
with EC>3.
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15. Demarcation of affected area
The points are
marked on the given
catchment map.
Based on EC values,
contour lines were
marked
The affected area is
shown on the map
It is very difficult to
demarcate the area
with only 24 samples.
The accuracy depends
on the number of
samples.
Remote sensing
technique can be used
to get more accurate
results
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16. Remedial Actions proposed
Preventive measures
Sprinkler and Drip
Irrigation
Crop Pattern and crop
rotation
Leakage Prevention
from canal
Proper land slope and
drainage arrangement
Curative measures
Cross drains
Controlling Water
Table and Soil
moisture
Soil Amendment
Soil leaching
Bio drainage
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17. Remarks and future scope
Proper drainage is
essential to avoid water
logging
It is difficult to demarcate
the area on map
accurately.
Cross drains may be
provided to reduce the
discharge.
The adjoining land should
be protected from water
logging in future.
New techniques, like
Remote sensing can be
used to speed up work
accurately.
Maintenance of existing
drainage scheme is an
important factor.
Cleaning of natural
nalla.
Involvement of farmers.
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18. Special Thanks to…
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Er. K.M. Shah saheb,
Superintending Engineer
and Director, DIRD, Pune
and Er. Giri Saheb, SE.
Er. Kiran Joshi,
Sectional Engineer
Er. Shivaji Rajale
Saheb, Executive
Engineer, IRD