Slide 1

1PRESENTATION ON LAKE RESTORATION PROJECTS BEING TAKEN UP BY B.D.A.

BANGALORE DEVELOPMENT AUTHORITY

1

Bangalore Development Authority Aims & Objectives: Regulation and Planning of Bangalore Metropolitan Area.BDA has a jurisdictional area of 1046 sq kms. Formation of Residential Layouts and Allotment of Sites at subsidized rates to the needy people.Taking up the required Infrastructure Facilities in Bangalore city such as Construction of Flyovers, Road Infrastructure, Construction of Complexes etc.. Construction of Affordable Housing Projects and Allotment of Houses to the needy people.Environmental Conservation Initiatives Such as Lake Restoration projects, Enhancing Green Cover, Development of Parks etc.

2

2

Present Scenario of Lakes in BangaloreBangalore City alone has got a total no of around 280 to 300 lakes.Lakes has lost its identity due to Rapid urbanization.Majority of the lakes are filled with sewage.Majority of the lakes have undergone encroachment of the lake areas, cropping up of unauthorized structures in the lake areas, dumping of garbage etc.Absence of proper monitoring and maintenance system for lakes.Absence of a proper funding mechanism for lakes.

3

4IMPORTANCE OF LAKE RESTORATION PROJECTS Based on Government directions, as an environmental protection initiative BDA has taken up the conservation and preservation of Natural water Bodies to their original glory in and around Bangalore .City. For Prevention of Pollution To prevent encroachmentTo develop the lake as a fresh water storage pond For Flood Mitigation To Preserve the Lake to its original GloryTo develop the lake as a recreational centre. To preserve and recharge the depleting underground water table.

4

Methodology followed by BDA for Project PreparationProjects Prepared as Per National Lake Conservation programme (NLCP), MoEF, New Delhi Guidelines and with a Master plan concept.

Sewage Diversion & Treatment Proposals prepared as per CPHEEO, MoUD, New Delhi Guidelines.

Remodelling of Inlet/Outlet Channels inline with BBMP SWD Master Plan proposals.

Lake boundary identification and Encroachment removal.

Works Categorized into Core & Non Core Components.

Works proposed to be taken up in two stages.

5

5

Removal of encroachment. & boundary fixing Chain link fencing all along the periphery of the lake to check unauthorized encroachment and dumping of debris & construction waste.Deweeding. Desilting. Formation of peripheral Bunds all along the periphery of the lake Construction of Wet lands to remove nutrients from non point source. Construction of Sewage Water Diversion channel / pipelines.Construction of Silt traps to check the entry of silt. Construction of Screen barriers to check the entry of floating objects.6Methodology followed by BDA for Lake Restoration Projects

6

Construction of RCC Storm Water inletsImprovements to the Waste Weir.Creation of islands for the re-habitation of birds.Landscaping and development of parks and childrens play area.Afforestation. Lighting all along the periphery of lakes.Construction of localized tertiary sewage treatment plants where ever necessary to maintain the water level in the lake for 365 daysSupply of excess treated water to down stream lake series through separate pipeline7Methodology followed by BDA for Lake Restoration Projects

7

Phase I 13 Lakes Phase II 32 Lakes Phase III 78 LakesLocation of Lakes

Phase I 13 Lakes Phase II 32 Lakes Phase III 78 Lakes8

STATUS OF LAKE RESTORATION WORKS TAKEN UP BY B.D.A.Sl No PhaseCategory of workTotal No. of Works Total No. of Works completed Total No. of works under progress Total No of works for which Revenue certification / eviction orders pending Lake Area(A - G)Encroachment Identified(A - G)Encroachment Cleared(A - G)1PHASE-1Comprehensive development of Lakes 13121--766 - 3331 - 1614 - 272PHASE-2Fencing works321517162373-3757 - 36 04 - 24Comprehensive development of Lakes - - - - - - - 3PHASE-3Fencing works 78256481917-17187 - 0044 - 00Total 1235224645057 - 37276 - 1263 - 11

9

10Sl.NoPhase Total No. of WorksEstimated CostIn CrsExpenditureIn CrsTotal No. of Works completedTotal No. of works under progressTenders under processRevenue certification pendingNos1Phase-1Comprehensive development of Lakes1390.2187.51121--2Phase-2Fencing works

Comprehensive development of Lakes3219.503.701517-16-541.50-----3Phase-3 Fencing works78225-25064748Total123876.2191.2152244764

STATUS OF LAKE RESTORATION WORKS

10

Details of Revenue Certification, Rehabilitation, Sewage and Lake Feeding ABSTRACTSl No PhaseCategory of workTotal No. of Works Total No. of Works completed Total No. of works under progress Total No of lakes for which Revenue certification / eviction orders pending Total No of Lakes for which rehabilitation is required Total No of Lakes which are polluted by sewage Total No. of Lakes which require feeding of treated water1PHASE-1Comprehensive development of Lakes 131210305 (211)- 032PHASE-2Fencing works3215171617 (1031)2622Comprehensive development of Lakes - - (07)- - - - 3PHASE-3Fencing works 782564835 (1069)5537Total 12352246857 (2311)8162

11

B. NARAYANAPURA LAKE:- SEWAGE ENTRY

B. NARAYANAPURA LAKE: ENCROACHMENT IN TANK AREA

12

KALKERE- RAMPURA LAKE:- GARBAGE DUMPING SEWAGE ENTRY

VIBUTHIPURA LAKE:- ENCROACHMENT & SEWAGE ENTRY

13

Chain link fencing to Lingadeeranahalli Lake (32 Lakes)Chain link fencing to Chikkabettahalli Lake (32 Lakes)

14

Barbed wire Fencing to Sooli Kere

15

Completed Projects Mallathahalli LAKE (13 Lakes) 16

Newly Commissioned 5.0 MLD STP near Malathahalli Lake

16

Sewage entry through SWD before commissioning of STPSewage diverted to STP. No sewage entry into lakeLake view after restorationLake filled with tertiary treated water after restorationCompleted Projects Mallathahalli LAKE17

17

Mallathahalli LAKE

18

18

Ullala LakeDuringAfterBefore19

19

Kommaghatta Lake

DuringAfterBefore

After Restoration20

20

Sompura Lake

DuringAfterBefore21

21

Issues of Lake restoration works The following are the issues which had slowed down the progress of lake restoration works.

All the lakes are transferred from BBMP / Forest Department to BDA for further development / maintenance, wherein the majority of the lakes are encroached, polluted with sewage and garbage dumping.

Any lake restoration project has to be started with revenue survey of the lake area, identification of encroachment, demarcation of encroachment and finally eviction of encroachment which has to be done by the revenue department, since the proprietary of all the lakes vests with the revenue department.

The clearance of encroachment on the lake areas is one of the serious issues which has slowed down the progress of lake works. In 64 cases the certification of encroachment, issue of eviction orders are pending which has to be taken up on priority.

7

22

Issues of Lake restoration works 81 Lakes under BDA control are affected by huge sewage flows, which has to be connected from the source to the main trunk sewer lines through a conduit which has to be taken up by BWSSB on priority.

Since the majority of the lakes in the core areas of the city are encroached, which has huge no of habitants, wherein rehabilitation of such encroachers has to be taken up on priority. As a rough estimate 57 lakes contains 2311 Nos of un-authorized habitants which needs to be rehabilitated. This issue is to be taken up on top priority by the Urban Deputy Commissioner and The Commissioner Slum Board.

In majority of the lakes, the Rajakaluves connecting lake to lake to transport the surplus water are non existant which has led to flooding, loss of property etc. So these Rajakaluves has to be demarcated on ground, encroachments to be removed and an earthen section of the Rajakaluve has to be provided for a free flow .

Lack of adequate financial resources .

Lack of proper maintenance mechanism.

Lack of adequate man power .

23

23

Suggestions / Recommendations There should be a more rigorous approach from the revenue authorities in tackling encroachments and related issues. Strict penal actions from the enforcing authorities in tackling encroachments, dumping of garbage, Entry of sewage into the lakes. There should be an integrated sewage network system for the entire Bangalore Metropolitan area, to be addressed by BWSSB on top priority. The Rehabilitation of the un-authorized habitants on the lake areas has to be taken up on priority by the Slum Development Board and the Revenue Authorities. The existing lake development authority should be made as a single nodal agency who can execute, enforce, monitor, maintain all urban lakes. The existing Lake Development Authority should be strengthened with adequate man power. A proper funding mechanism should be developed to provide adequate funds for execution and maintenance of lake systems.

24

25

25