Preparing River Tapi for Floods
INTRODUCTION
River Tapi is originating from a Multai Hills
(Gavilgadh hill ranges of Satpura) and flowing through three states Maharastra, Madya Pradesh and
Gujarat having length of 725 Kms. The flow of water and water level in the river Tapi is controlled at Ukai dam which is 100 kms away from Surat city. The foundation of dam is resting on Dolerite dykes
(Basalt). It is constructed for irrigation purpose mainly and also served the purpose of flood control, generation of hydropower and supply of industrial and drinking water. The average rainfall in the catchment area is about 785 mm and average yearly run off is 17,226 MCM. The area of Surat city situated at delta stage of the river is 326.51 sq.km. and population is about 40 lacs. The city is having
60,000 Shops & Establishment in trading activity.
The city is also famous for diamond industry. The
Major industries like Essar Steel, Reliance, ONGC, L
& T, Gail, Kribhco, Shell, NTPC, GSPC, Torrent
Power etc. are situated in the city. The study area is shown in Fig. No.1. Floods are occurring in river
Tapi time to time, due to which major portion of the city is submerged creating lot of damage in residential as well as industrial areas. There is a need of reducing the effect of flood. In this paper the aspects of river channel modification are considered for enhancing the carrying capacity and reducing the effect of flood in the city.
NECESSITY OF CHANNEL MODIFICATION
Flood occurs at Surat city frequently due to sudden release of water from Ukai dam in river Tapi. At the time of floods in river Tapi, Surat city and surrounding regions are most affected. The city has faced many floods since long back. There was a flood in the Surat in 1959, 1968, 1998 and 2006. The summary of the flood is given in the Table No. 1. The
Surat city and surrounding villages are part of flood drainage of Tapi River. The carrying capacity of river was about 6 Lacs cusecs. Since 1883 floods are
River Tapi is originating from a Multai Hills
(Gavilgadh hill ranges of Satpura) and flowing through three states Maharastra, Madya Pradesh and
Gujarat having length of 725 Kms. The flow of water and water level in the river Tapi is controlled at Ukai dam which is 100 kms away from Surat city. The foundation of dam is resting on Dolerite dykes
(Basalt). It is constructed for irrigation purpose mainly and also served the purpose of flood control, generation of hydropower and supply of industrial and drinking water. The average rainfall in the catchment area is about 785 mm and average yearly run off is 17,226 MCM. The area of Surat city situated at delta stage of the river is 326.51 sq.km. and population is about 40 lacs. The city is having
60,000 Shops & Establishment in trading activity.
The city is also famous for diamond industry. The
Major industries like Essar Steel, Reliance, ONGC, L
& T, Gail, Kribhco, Shell, NTPC, GSPC, Torrent
Power etc. are situated in the city. The study area is shown in Fig. No.1. Floods are occurring in river
Tapi time to time, due to which major portion of the city is submerged creating lot of damage in residential as well as industrial areas. There is a need of reducing the effect of flood. In this paper the aspects of river channel modification are considered for enhancing the carrying capacity and reducing the effect of flood in the city.
NECESSITY OF CHANNEL MODIFICATION
Flood occurs at Surat city frequently due to sudden release of water from Ukai dam in river Tapi. At the time of floods in river Tapi, Surat city and surrounding regions are most affected. The city has faced many floods since long back. There was a flood in the Surat in 1959, 1968, 1998 and 2006. The summary of the flood is given in the Table No. 1. The
Surat city and surrounding villages are part of flood drainage of Tapi River. The carrying capacity of river was about 6 Lacs cusecs. Since 1883 floods are