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Improving Water Security in Water Stressed Bagmati River Basin, Nepal.


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presented by Ram Kumar Shrestha and Rabindra Ray in Asia Water Week 2013, Manila 11-13 March 2013

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Improving Water Security in Water Stressed Bagmati River Basin, Nepal.

  1. 1. Improving Water Security in WaterImproving Water Security in Waterp o g ate Secu ty atep o g ate Secu ty ateStressedStressed BagmatiBagmati River Basin,River Basin,Ram Kumar Shrestha & Rabindra RayRam Kumar Shrestha & Rabindra RayNepalNepaly(Engineer)Government of NepalMinistry of Urban Developmenty(Engineer)Government of NepalMinistry of Urban DevelopmentHigh Powered Committee for Intregated Development ofBagmati Civilization (HPCIDBC)High Powered Committee for Intregated Development ofBagmati Civilization (HPCIDBC)
  2. 2. I t d tiContentsContents Introduction Bagmati Action Plang Status of Activities Future PlanTh f d The way forward Conclusion
  3. 3. Nepal
  4. 4. rPartBagmati RiverUpperBagmati RiverBasin in NepalddlepartMidwerPartTotal Catchment area :3750 sq. km.T l l h f h i iLowTotal length of the river inNepal : 220km
  5. 5. Bagmati River in Kathmandu Valley
  6. 6. A few length of Bagmati River in KV6
  7. 7. Water Use – Drinking,Key Areas on Water Security in Bagmati River BasinWater ResourceDevelopment andManagementg,Irrigation andothersWater Resource – surface& Ground waterUpper BagmatiRiver BasinManagement & Ground waterWater QualityFlood ControlRiver BasinRiver AreaManagementRiverfront environmentSolid wastesquatter andencroachment of the riverillegal sand minesWater ResourceDevelopment & IrrigationMiddle andLower BagmatiDevelopment &ManagementIrrigationFlood ControlRiver Basin Water Disaster Mitigation Debris flowWatershed conservation
  8. 8. Importance of Bagmati RiverB ti Ri d it Bagmati River and itswatershed is veryimportant for Nepal,Strategically religiouslyPashupatinathStrategically, religiously,culturally, economically,socially andenvironmentally.environmentally. Kathmandu, the capitalcity, situated on theybanks of Bagmati. The length of BagmatiDhap Sunarighatwithin Kathmandu Valleyis 45 km.People bathing at Guheswori Gaurighat
  9. 9. Issues/Problems of Bagmati in KathmanduDecrease in river flow Disposal of untreated wastewaterEncroachments of riverregimewater regimeSolid waste dumping on riverbanksand extraction Haphazard urbanizationand rapid populationbank and rapid populationgrowth
  10. 10. Discharge of Bagmati RiverDischarge of Bagmati RiverDischarge of Bagmati River28.7634.75253035ecs• Highdifference indry and wet12.5315.4218.7710152025schargeCumedry and wetweatherflow1.98 3.443.220510Disti l i t• Watershortage inGokarnaJorpatiTilgangaShankhamulBabarmahalThapathaliSundarighatKhokamaLocationshortage indry seasonDry Season Discharge m3/s Monsoon Discharge m3/s
  11. 11. Variation of BOD along Bagmati RiverVariation of BOD along Bagmati River600400500300400OD(mg/L)100200BOSundarijal Gokarna Jorpati Guheshwori Tilganga Minbhawan Sankhamul Thapathali Teku Dovan Sundarighat0100Dec. 3 8 18 13 130 320 220 430 250Jan. 2 17 44 26 220 320 178 256 350 280Feb. 3 14 46 15 147 310 190 335 410 370Mar. 7 8 49 12 198 277 234 247 460 352
  12. 12. Water Quality of the Bagmati and its TributariesWater Quality of the Bagmati and its Tributaries
  13. 13. B ti A ti PlBagmati Action Plan Bagmati Action Plan has been Bagmati Action Plan has beendeveloped by HPCIDBC & NTNCwith the financial support of UNEPand UNHABITATand UNHABITAT. Bagmati Action Plan was approvedby the Government of Nepal inAugust 2009. It envisages HPCIDBC as the leadimplementing agency for rivert i t i tsystem environment improvementin Kathmandu.
  14. 14. Zoning of the Kathmandu ValleyBagmati Action Plan …….Zoning of the Kathmandu ValleyNatural ConservationRuralZone 1Zone 2 RuralPeri UrbanUrbanZone 2Zone 3Zone 4 UrbanDown StreamZone 4Zone 5
  15. 15. VisionBagmati Action Plan …….VisionClean, green and healthy river system inKathmandu valley; that is full of life and valuedby all.
  16. 16. Mandate/Resonsibility to HPCIDBC Policy formulation and Planning for restoration of Rivert i th it l it K th d V llMandate/Resonsibility to HPCIDBCsystem in the capital city, Kathmandu Valley Construction of infrastructure to protect and restore theBagmati River SystemBagmati River System• 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
  17. 17. Financial StatusFinancial Status60 5440506041544640292030294 5 5 5 5010Year 1 Year 2 Year 3 Year 4 Year 53.8 4 4.5 5 5.5Required BudgetMUSDExpected AllocationMUSD
  18. 18. Activities Carried out byHPCIDBC
  19. 19. Activities Carried out by HPCIDBC …………..Conservation of water recharge areas, Dhap (origin of Bagmati)BeforreNoww
  20. 20. Construction of sewer lines, green belts, access roads along theActivities Carried out by HPCIDBC…………..Construction of sewer lines, green belts, access roads along theriver, river demarcation and bank protection work
  21. 21. O ti f W t W t T t t Pl t t G h iActivities Carried out by HPCIDBC …………..Operation of Waste Water Treatment Plant at GuhesworiCapacity: 16.3 MLDp yGuheswori to Tilganga Tunnellength : 572 m Dia: 2mDrying Bed
  22. 22. Monthly average COD of influent and effluent of1600Monthly average COD of influent and effluent ofthe Waste Water Treatment Plant, HPCIDBC120014001600InfluentEffluent8001000CODmg/l400600C0200Apr-12 May-12 Jun-12 Jul-12 Aug-12 Sep-12
  23. 23. Bagmati River Bank Protection work/River trainingActivities Carried out by HPCIDBC …………..Bagmati River Bank Protection work/River trainingNow Before
  24. 24. Towards a Bagmati River Basin Road MapWhere we are? Where do we get there? Where do we want to go?Water resource Develop & implement a Socially, environmentallydevelopmentdangerouslyunsustainable in theupper Watershedp psustainable Waterresource Mgt. systemfor deep GW usey, y& economicallysustainable WS & WWTPin the valleyLane 1River environmentmanagementalmost out ofcontrolDevelop and implementcomprehensive RiverEnvironment Mgt. system(Bagmati Action Plan)Clean, green & healthyriver system that if fulof life & valued by allLane 2controlRapid andunsustainable urban(Bagmati Action Plan)Sustainable WaterResource developmentInfrastructure in thelower basin and disasterLane 3development inlower basinLimited capacity andf& Irrigation Water useManagementsupport a step wisemgt. creatingopportunities outside KVMulti-stakeholdersLane 3resources fromGovernmental institution &civil society to bringadequate response to basinissuesapproach for bldg. inter-sector collaboration,awareness & appr.Decisionmechanisms forintegrated managementof water resources in thebasinLane 4
  25. 25. IWRM I l t ti B ti ( i i l )IWRM Implementation on Bagmati (principle)VisionClean, green and healthyriver system in Kathmandu;WaterInducedDi triver system in Kathmandu;that is full of life and valuedby all.WaterRiverEnvironmentManagementDisasterManagement I t iti l tresourceManagement Intuitional setup Infrastructure InformationFoundation ofFour "I"s Involvement of Stakeholders
  26. 26. Future Plan Rainwater harvesting, Ground water recharge andlivelihood development in buffer zone. Augmentation of river discharge by constructingdam in upper Bagmati. Watershed Management activities in upperBagmati. (ADB/PPTA/8050)Dam Height Storage YieldNagmati Dhap 18 m 0.7 mcm 24 l/sNagmati 60 m 5.0 mcm 230 l/sBagmati 50 m 3.4 mcm 200 l/s
  27. 27. Contour Photograph of proposed Dam siteFuture Plan …..Contour Photograph of proposed Dam site
  28. 28. Proposed WWTP in KathmanduGokarna)GuheshworiMadhyapur Thimi)BhaktapurBalkumari 216 MLDSundarighat397 MLDBhaktapurNakhuChovar
  29. 29. The Way Forward Developing HPCIDBC as a subsidiary RiverBasin Organization (RBO) for KathmanduV llValley. Institutional Strengthening and capacitydevelopment of HPCIDBCdevelopment of HPCIDBC. Defining organization for Bagmati Basin.
  30. 30. Conclusion• Bagmati River and its tributaries environmentalsituation has not deteriorated IRREVERSIBLY. Itb t d i t ll ith tcan be regenerated environmentally with supportfrom Development Partners, Donor Agencies, CivilSociety, NGOs and INGOs etc.• As Bagmati attaches spiritual and emotionalsignificance to the Nepali people (most of thesignificance to the Nepali people (most of theimportant temples, shrines, ghats, etc. are locatedalong the river banks and are used for differentcultural and ritual purposes), conservation of riversis very important for the protection of both naturalresources and rich cultural heritage of the Valley.esou ces a d c cu u a e age o e a ey
  31. 31. www bagmati gov