Sabarmati Riverfront Development Project
Total Page：16
File Type：pdf, Size：1020Kb
SABARMATI RIVERFRONT DEVELOPMENT PROJECT A Multidimensional Environmental Improvement and Urban Rejuvenation Project … one of the most innovative projects towards urban regeneration in the world to make the city livable & sustainable (KPMG ) SABARMATI RIVER and AHMEDABAD The River Sabarmati flows from north to south splitting Ahmedabad into almost two equal parts. For many years, it has served as a water source and provided almost no formal recreational space for the city. As the city has grown, the Sabarmati river had been abused and neglected and with the increased pollution was posing a major health and environmental hazard to the city. The slums on the riverbank were disastrously flood prone and lack basic infrastructure services. The River became back of the City and inaccessible to the public Ahmedabad and the Sabarmati :1672 Sabarmati and the Growth of Ahmedabad Sabarmati has always been important to Ahmedabad As a source for drinking water As a place for recreation As a place to gather Place for the poor to build their hutments Place for washing and drying clothes Place for holding the traditional Market And yet, Sabarmati was abused and neglected Sabarmati became a place Abuse of the River to dump garbage • Due to increase in urban pressures, carrying capacity of existing sewage system falling short and its diversion into storm water system releasing sewage into the River. Storm water drains spewed untreated sewage into the river • Illegal sewage connections in the storm water drains • Open defecation from the near by human settlements spread over the entire length. • Discharge of industrial effluent through Nallas brought sewage into some SWDs. the river and abused Sabarmati • Illegal construction/encroachment of huts/slum on the river bed. Encroachments reduced the river’s flood carrying capacity The river was inaccessible to the public SABARMATI RIVER FRONT DEVELOPMENT PROJECT For implementation of The Sabarmati Riverfront Development Project is a city level this Project: intervention. A Company has been set up by AMC in the It is conceived and being implemented as a pioneering multi- Year 1997. benefit project with significant urban transformation potential. This project is to transform the historic but neglected river Sabarmati into a vibrant and vital focus for Ahmedabad city to be returned back to the citizens of Ahmedabad. Ahmedabad The riverfront development is already turning the Sabarmati into Municipal a major asset, which will improve the efficiency of infrastructure Corporation (AMC) and the quality life in Ahmedabad. Revitalize as vibrant urban space which in fact was carrying significant sewage flow and used as dumping yard for disposal of garbage. As a process in urban renewal, the Sabarmati Riverfront Development Project has all the elements of; • Environmental, • Transform the non-perennial river Sabarmati River Front Development • Cultural and social sustainability Corporation Ltd. in • Financial, 1997 Objectives 1. Environmental Improvement 2. Creating network of public open spaces 3. Providing adequate public access to the river 4. Rehabilitation of the slums 5. Rehabilitation of Gujari Bazaar 6. Rehabilitation of Dhobis (Washermen) 7. Creating vibrant urban neighborhood 8. Recreational Activities Land Use Plan Sr Sanctioned Land Use Area Ha % 1Roads 44 22 2Garden 27 14 3Open Space 37 18 4 Public Purpose 29 14 5 Lower Promenade 27 13 6 Multi Use for sale 29 14 7 Sports 7 4 8 Residual (Utilities, Residential, 2 1 Commercial, General, Education Total 202.8 Project Implementation Sabarmati River ; River Hydraulic Water in the Riverimplementation • Basic infrastructures; Dharoi Dam • Diaphgragm wall Sabarmati River • Reatiinig wall Ahmedabad City Narmada Main Canal • Staircases Narmada River Sardar sarovar Dm RIVER HYDRAULICS The objective of the river hydraulic study was to ensure for: River width in such a way that, expected High Flood Level(HFL) in the River in its natural condition, does not significantly increase after it is constricted and trained. Height of Retaining walls and Embankment in relevance to HFL The Depth of Diaphragm wall to protect scouring of the Riverbed Stability of existing bridges by protecting piers against increased velocity as per the design HFL River Hydraulic and Alignment Original Condition East Bank West bank After Project Defined waterway East Bank West bank Reclaimed land River Training as per hydraulic requirement 679 m 214 m 275 m 190 m 329 m 30 m 275 m 24 m Basic Infrastructural Works: Diaphragm Wall, Anchor Slab, Ghats and Ramps Retaining Wall, Staircases and Ramps Extension of Outfalls, Interceptor Sewage & Junction Chamber, Pumping Station Pier Protection of existing Bridges Earth Fill Construction Process: Original Condition SRFD Land Private Construction Process: Diaphragm Wall and Anchor Slab Anchor Slab Diaphragm Wall SRFD Land Private Construction Process: Retaining Wall and Earth Fill Retaining Wall Lower Promenade Earth Fill SRFD Land Private Construction Process Further Development Diaphragm Wall and Anchor Slab Earth fill to start work. Diaphragm Wall and Anchor Slab Diaphragm Wall: Anchor Slab: • To align the smooth profile for water way • To anchor the Diaphragm wall with RCC key • For Scour Protection • To provide Walk way in proximity of the • To retain earth water body • Length: 22150 Rmt • Length: 22150 Rmt • Thickness: 2 Feet • Width : Avg. 10.3 Meter • Depth: Avg. 50 Feet • Thickness: 250 mm • Key: 1.5 Meter Diaphragm Wall Anchor Slab Retaining Wall RCC retaininmg wall : To retain earth filling and protection up to high flood level. Heght : 9.0 m to 4.5 m Retaining Wall Pier Protection of existing bridges For all five existing bridges as shown below, have been protected against expected increased velocity of flood: Subhash Bridge Gandhi Bridge Nehru Bridge Ellis Bridge Sardar Bridge General Earth Fill Sewerage Network To stop flow of sewage and to keep the river clean Diversion (Interceptor) of Sewage • East Bank: 15 Km • West Bank: 12.3 Km Total work: RCC pipe (1.2 m to 2.2 m Dia) 17800 Rmt RCC Box drains (1.7 m x 1.8 m to 2.25 m x 1.8 m twin box) 3200 Rmt Rising main: 5000 Rmt and GRP pieline : 1300 Rmt. Total drains: 48 Nos (28 on West & 20 on East) Junction chambers: Total 41 Nos. (23 on West and 18 on East) East Bank Pumping station West bank Interceptor To Sewage sewage line treatment plant Road Network East Bank: Four lane road creating North - South link of 10.55 km connecting river with East Ahmedabad through 10 approaches. The major connection with the road leading to the Airport avoiding traffic congestions. Connection with the fort wall city having many markets in central Ahmedabad and biggest city bus terminus i.e. Laldarwaja etc. West Bank: This is also four lane road of 9.25 km length parallel to the major Noth - South Ashram road on this side. This will help to manage traffic of commercial development of West Ahmedabad and proposed Central Business District through 11 approaches. Project Cost of various Components as on 31/10/2014 Sr. Description Amount Rs. Cr Status 1 Diaphragm wall, Anchor Slab and Earth 264.68 Completed Fill up to lower walkway 2 Retaining Wall and Special Earth Fill 180.39 Completed 3 General Earth Fill 68.00 Completed 4 Finishing of Lower Promenade 35.58 Ongoing Remaining 13.30 Cr 5 Road & Underpasses 68.31 Ongoing Remaining 50.00 Cr 6 Diversion of Sewer and Pumping Station 126.92 Completed 7 River Front Market 21.20 Completed 8 Laundry Campus 7.48 Completed 9 Event Ground 2.39 Ongoing Remaining 16.00 Cr 10 Toilet Blocks 6.50 Ongoing Remaining 1.00 Cr 11 Garden Works 15.77 Completed 12 Upper Promenade Finishing 1.00 Ongoing Remaining 1.00 Cr Total 798.22 Before – After : D/s of Subhash Bridge Current Before – After : Gandhi Bridge West D/s Current Before - After: Gandhi Bridge D/s Before – After: D/s of Dr. Ambedkar Bridge Project View West East Sabarmati River The Sabarmati is now accessible for public ! Source – 26 th February 2011, DNA Sabarmati Riverfront Development Sabarmati Riverfront Development Inclusive Development Rehabilitation of the slums Rehabilitation of Gujari Bazaar Rehabilitation of Dhobis (Washermen) Environmental Improvement Rehabilitation of the slums • More than 10000 families residing in the riverbed/affected by the project. • Relocated and rehabilitated on well developed residential colonies. • Eliminated the risk of flooding for these many poor communities and • Improved Social and Economic well-being of them. Rehabilitation of Gujari Bazaar The project has strengthened and upgraded the existing Gujari Bazaar (Unorganized Sunday market) on nearby well developed riverfront market . Capacity : 1641 vendors Parking: • Two wheelers: 1942 • Car: 428 Area: 63,000 Sq. Mt. Tree Plantation: 800 Nos. Now Before Dhobis using river bed for this activity have Rehabilitation of been rehabilitated. Sate of art Laundry campus and unique of it’s Dhobis (Washermen) kind in the country. Total seven blocks have been constructed Facility to use terrace to get the clothes dry Can use washing machines, dryers. Used water is discharged in to the existing STP just behind. Area : 9380 Smt, Capacity : 168 Dhobi Toilet Block, Admin Office, Electric sub station, etc. Before Now Environmental Improvement • Interceptor sewer system ensuring clean water in the river • Retention of water in the river almost for the whole year • Having 12.5 million cubic meter storage of the water, recharge of ground water aquifers of the city. • Plantation of more than 20000 trees and Development of various gardens and parks, Biodiversity park etc. as Green Area. Public Gardens •River Front Park at Subhash Bridge : East (1.2 Km long, 62 ,000 Smt Area) •Garden at Usmanpura : West (0.6 Km long, 18,500 Smt Area) Creating network of public spaces Ongoing Bio diversity Park Near Vasna Barrage on West Bank : Area 15 Ha. Upcoming Flower Garden Bh. V.S.