xl. ABSTRACT OF PROCEEDINGS — APPENDIX. 



to bank is three and a half miles, but four islands reduce 

 the length of the weir to two and a half miles. The river 

 Godavery drains 115,570 square miles, and has a maximum 

 discharge of over 1,000,000 cusecs. The rise of flood at 

 the weir is 27 to 28 feet ; the bed of the river is pure sand. 



At the head of the Delta there are four channels; of 

 these the two eastern ones unite again almost Immediately 

 and form what is called the Gowtami-Godavari; and the 

 two western channels similarly unite to form the Vasista- 

 Godavari. The land between these two principal branches 

 forms the central delta, and that lying to the east of the 

 Gowtami-Godavari forms the Eastern Delta ; also the land 

 lying to the west of the Vasista-Godavari forms the Western 

 Delta. 



The weir is 14 feet in height, and the three sets of head 

 sluices give a total area of 654f square feet. The develop- 

 ment of the various canals and distributary channels in the 

 three sections of the delta was undertaken gradually, and 

 to-day the system is one of the largest and most successful 

 in India, returning over 20% on the capital invested. 



The Kistna Delta system was designed by Sir Arthur 

 Cotton soon after the construction of the Godavari Weir. 

 The Kistna Weir is about 3,000 feet long, with a total 

 length of 4,000 feet, including the under sluices, and is con- 

 structed at a narrow portion of the river where a spur of 

 sandstone runs down to the bed of the river at each side 

 of the weir. The site for the weir was selected on account 

 of the excellent supply of good stone immediately available 

 from the rocky hills on each side. On each flank of the 

 weir scouring sluices are provided in order to keep a clear 

 channel in front of the regulating sluices of the two main 

 canals where they take off. The flood waters rise nearly 

 20 feet above the weir crest with a velocity of eleven miles 

 an hour. 



