Dakshin Dinajpur

Master plan for Flood Management and Erosion Control in North Bengal, Phase - I

B

alurghat  Block

Name of District

Dakshin Dinajpur

Area - 2162 Sq. K.M.

Name of block

Balurghat

Area - 363.9 Sq. K.M.

Number of village in block

 

311 Mouza

Number of towns / cities in block

 

Nil

River / Streams / Rivulets / Nalla       

Name of River

Total length in the block (Km)

High flood level (m)

Danger level (m)

Atreyee

23 K.M.

24.46 (M)

23.15 (M)

Problem Location (as based on the historical data of past 10 years)

Erosion Problem

Name of stream / nalla

Year

Period of occurrence

Length of river bank eroded (m/km)

Location (name of important structure in its vicinity)

After-effect

Kashia Khari

1995

10-7-95 to 12-7-95
28-9-95 to 3-10-95

1.5 KM

Fatepur

No embankment has been constructed

Atreyee River

1995

10-7-95 to 12-7-95
28-7-95 to 3-10-95

1/2 K.M

ParPatiram to Singpara

Protection wall has been constructed

1998

4-9-98 to 6-9-98

Atrayee River

1995
1998

do

2 K.M.

Khaspur to Fulghara

No protection wall has been built

do

do

do

1 K.M.

Chakkashi

Protection wall has been constructed

do

1998
1999

do

1/2 K.M

Raghunathpur

No Protection wall has been constructed

Inundation Problem

Name of stream/ nalla

year

Period of occurrence

Area under submergence (ha)

Average   depth of water

Average period of water detention (hrs/days)

Affected (no)

Infrastructure (road/railways /buildings)

Existing means of drainage

Human

Live Stock

 

Cropped

Forest

Habitation

 

Atrayee

1995 1998

10-7-95 to
12-7-95
28-9-95 to
3-10-95
4-9-98 to
6-9-98

30100 ha

29252 ha

6290 ha

24.46 m in the river 7 m on land

11 days

137369

19347

Road - 187 K.M. Dwelling house 24328

Nil

Kashia
Khari
Kalkali
Khari

do

Breach  embankment

River

Year

Period of occurrence

Name of embankment

Locati on of breach

Cause of breach

Width/height of breach

Depth of water of site

Nature of soil

Atrayee

1995 1998

10-7-95 to 12-7-95   28-9-95 to 3-10-95

Parpatiram Nuniapara

Nuniapara

Pressure of flood water

17ft
15ft

35ft at river site

Sandy soil

do

do

do

Chakvrigu to Bhairabitala

Bhairabitala

do

19ft
14ft

31ft at river site

do

do

do

do

Khidirpur

Khidirpur Battala

do

16ft
13ft

17ft at river site

do

do

do

do

Dangi

Near B.S.F. Camp

do

13ft
14ft

19ft at river site

do

Sedimentation / Shifting of River

River/stream

Sedimentation

Shifting of river course

Location

Average height

Period of occurrence

Location

Distance of shift (m)

Period (month/years)

Atreyee

Patiram duck bunglow para to Dangi

13 ft

From 1978 to 2001

Nil

Nil

Nil

Kashia Khari

Baul to Fatepur

4ft

do

Nil

Nil

Nil

Ichhaman

Patiram Sahapara to Jhapurshi

3ft

do

Nil

Nil

Nil

Land slides

Date of occurrence

Location

After effects in term of obstructing

 

River flow

Road communication

Nil

Nil

Nil

Nil

Water ways for road / railway bridge

Name of bridge

River

Location

Design waterway (m)

Design discharge (cumec)

Max observed discharge (cumec)

HLF of river

Patiram

Atreyee

Patiram to Parpatiram

255 M

2850 M

2850 M

24.46 M on 28-9-95

Saroj Setu

do

Near collectorate building

do

do

do

do

Existing Preventive Measures

For Erosion Control

Particulars

Spurs

Embankment

Revetments

Guide bunds

Launching aprons

Pitched islands

Vegetal growth

Total length in the block

Nil

14.175 K.M.

15.505 K.M.

Nil

14.175 K.M

Nil

Nil

Number

Nil

10

10

Nil

10

Nil

Nil

Locatio / river

Nil

River Atrayee

River Atrayee

Nil

Atrayee

Nil

Nil

For Flood Management

Particulars

Diversion of flood flow to local beels

Small check dams (height of dams)

Afforestation (area in ha)

Any other measures

No of schemes

Nil

 

Nil

 

Nil

 

Nil

Location

Nil

 

Nil

 

Nil

 

Nil

Effectiveness of above measures

A qualitative perception with regard to effectiveness of existing remedial measures may be given in brief 

Embankment is as noted above have been constructed for the purpose of protection of erosion but not as flood protection. There is no scope of diversion of flood flow to any bills or to any river. It will be very effective if high embankments than water level as raised in 1995 are constructed on both side of river Atrayee.

Suggested solutions

Flood occurs in the block generally due to lack of proper water drainage system. In rainy season, water coming from upper catchment of river Atrayee and water logging due to local rainfall cannot flow in normal course as the water level of Bangladesh becomes high. River Atreyee has lost her depth and is suffering from low water capacity. This river is coming from Bangladesh and re-enters the country. Owing to lack of water capacity, she can't bear the heavy water pressure at the time of heavy rainfall locally and at upper catchment. The condition of kharis is same. These were excavated long ago and no digging programme was undertaken for that. Over the years, embankments were not properly prepared out of flood, due to lack of available fund. So, water drainage system needs renovation by re-excavation of kharies. River Atrayee will be dredged in collaboration with Bangaladesh as this river flows through greater land of Bangladesh. The length of this river in India is about 55 km

.

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