AWW2013: Improving Water Security in Water Stressed Bagmati River Basin in Nepal by Rabindra Ray and...

7/29/2019 AWW2013: Improving Water Security in Water Stressed Bagmati River Basin in Nepal by Rabindra Ray and Bharat Bahadur Kc

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Im rovin Water Securit in WaterIm rovin Water Securit in Water

StressedStressed BagmatiBagmati River Basin,River Basin,

Ram Kumar Shrestha & Rabindra Ra

Ram Kumar Shrestha & Rabindra Ra

NepalNepal

(Engineer)Government of Nepal

Ministry of Urban Development

(Engineer)Government of Nepal

Ministry of Urban Development

High Powered Committee for Intregated Development ofBagmati Civilization (HPCIDBC)

High Powered Committee for Intregated Development ofBagmati Civilization (HPCIDBC)

www.bagmati.gov.np



ContentsContents

ntro uct on

Ba mati Action Plan

Status of Activities

Future Plan

e way orwar

Conclusion



Nepal



P a r t

U p p e

Basin in Nepal d l e p a r t

M i

e r P a r tTotal Catchment area :

3750 sq. km.

L oTotal length of the river inNepal : 220km



Bagmati River in Kathmandu Valley



A few length of Bagmati River in KV

6



Water Use – Drinkin

Water ResourceDevelopment and

Irrigation andothers

Water Resource – surface

Upper BagmatiRiv r B in

Water Quality

Flood Control

River Area

Management

Riverfront environment

Solid waste

squatter andencroachment of the river

illegal sand mines

Water Resource

Middle andLower Bagmati

Management

Flood Control

River Basin Water Disaster Mitigation Debris flow

Watershed conservation



Importance of Bagmati River

agma ver an swatershed is veryimportant for Nepal,

Pashupatinath

, ,

culturally, economically,socially and

.

Kathmandu, the capitalcity, situated on thebanks of Bagmati.

The length of BagmatiDhap Sunarighat

within Kathmandu Valleyis 45 km.

People bathing at Guheswori Gaurighat



Issues/Problems of Bagmati in Kathmandu

Decrease in river flow Disposal of untreated waste Encroachments of river

Solid waste dumping on river sand extraction Haphazard urbanization

growth



Discharge of Bagmati River

28.76

34.75

25

30

35

c s

• Highdifference in

12.53

15.4218.77

15

20

c h a

r g e C u m

e weather

flow

1.98 3.443.22

0

5

10 D i s

• Watershorta e in

G o k a r n a J o r p a t

T i l g a n g a S h

a n k h a m u l

B a b a r

m a h a l

T h a p a t h a

l

S u n d a

r i g h a t

K h o k a m a

Location

dry season

Dry Season Discharge m3/s Monsoon Discharge m3/s



600

500

300

D ( m g / L )

200 B

Sundarijal Gokarna Jorpati Guheshwori Tilganga Minbhawan Sankhamul Thapathali Teku Dovan Sundarighat0

Dec. 3 8 18 13 130 320 220 430 250

Jan. 2 17 44 26 220 320 178 256 350 280

Feb. 3 14 46 15 147 310 190 335 410 370Mar. 7 8 49 12 198 277 234 247 460 352





agma c on an

developed by HPCIDBC & NTNCwith the financial support of UNEP

.

Bagmati Action Plan was approvedby the Government of Nepal inAugust 2009.

It envisages HPCIDBC as the leadimplementing agency for riversystem env ronment mprovement

in Kathmandu.



Bagmati Action Plan …….

Natural ConservationZone 1

Peri UrbanZone 3

Down Stream

Zone 5



Bagmati Action Plan …….

Clean, green and healthy river system inKathmandu valley; that is full of life and valuedby all.



Policy formulation and Planning for restoration of Riversystem n t e cap ta c ty, at man u a ey

Construction of infrastructure to protect and restore the

• Construction of sewer system

• Construction of waste water treatment plant• Construction of access road and green belt

Defining the river alignment and width of flow regime

Monitor and regulate the activities along the river sidearea



40

5041 46

40

20

3029

0

10

Year 1 Year 2 Year 3 Year 4 Year 5

3.8 4 . .

Required BudgetMUSD

Expected AllocationMUSD



Activities Carried out byHPCIDBC



Activities Carried out by HPCIDBC …………..

Conservation of water recharge areas, Dhap (origin of Bagmati)

Be

fo

e

No



Construction of sewer lines reen belts access roads alon the

Activities Carried out by HPCIDBC…………..

river, river demarcation and bank protection work




pera on o as e a er rea men an a u eswor

Ca acit : 16.3 MLD

Guheswori to Tilganga Tunnel

length : 572 m Dia: 2mDrying Bed



the Waste Water Treatment Plant, HPCIDBC

1200

1400 Influent

Effluent

800

1000

O D

m g / l

400

600

0

200

Apr-12 May-12 Jun-12 Jul-12 Aug-12 Sep-12




Now Before



Tow ards a Bagmat i Rive r Bas in Road Map

Where we are? Where do we get there? Where do we want to go?

Water resource Develo & im lement a Sociall environmentalldevelopment

dangerouslyunsustainable in theupper Watershed

sustainable Water

resource Mgt. systemfor deep GW use

& economically

sustainable WS & WWTPin the valley

Lane 1

River environmentmanagement

almost out of

Develop and implementcomprehensive River

Environment Mgt. system

Clean, green & healthyriver system that if ful

of life & valued by allLane 2con ro

Rapid andunsustainable urban

Sustainable WaterResource development

Infrastructure in thelower basin and disaster

development inlower basin

Limited capacity and

& Irrigation Water useManagement

support a step wise

mgt. creatingopportunities outside KV

Multi-stakeholdersresources rom

Governmental institution &civil society to bring

adequate response to basinissues

approach for bldg. inter-sector collaboration,

awareness & appr.Decision

mechanisms for

integrated management

of water resources in thebasin

Lane 4



mp ementat on on agmat pr nc p e

VisionClean, green and healthy

WaterInduced

that is full of life and valued by all .

Water

RiverEnvironmentManagement

sasterManagement

resourceManagement

n u ona se up

Infrastructure

Information

Foundation of

Four "I"s

Involvement of Stakeholders



Fut ure Plan

Rainwater harvesting, Ground water recharge andlivelihood development in buffer zone.

Augmentation of river discharge by constructingdam in upper Bagmati.

Watershed Management activities in upper

Bagmati. (ADB/PPTA/8050)

Dam Height Storage Yield

Nagmati Dhap 18 m 0.7 mcm 24 l/s

Nagmati 60 m 5.0 mcm 230 l/s

Bagmati 50 m 3.4 mcm 200 l/s



Fut ure Plan …..



Proposed WWTP in Kathmandu

Gokarna)

Guheshwor i

Madhyapur Thimi )

B al k u m ar i 2 16 M L D

Sundarighat

397 MLD

NakhuChovar



The Way Forward

Developing HPCIDBC as a subsidiary RiverBasin Organization (RBO) for Kathmandu

a ey.

Institutional Strengthening and capacity.

Defining organization for Bagmati Basin.



Conclusion

• Bagmati River and its tributaries environmentalsituation has not deteriorated IRREVERSIBLY. Itcan e regenera e env ronmen a y w suppor

from Development Partners, Donor Agencies, CivilSociety, NGOs and INGOs etc.

• As Bagmati attaches spiritual and emotional

important temples, shrines, ghats, etc. are locatedalong the river banks and are used for different

cultural and ritual purposes), conservation of riversis very important for the protection of both naturalresources and rich cultural herita e of the Valle .



. . .

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AWW2013: Improving Water Security in Water Stressed Bagmati River Basin in Nepal by Rabindra Ray and...

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