1842.] to be supplied from the River Jumna. 763 



point will be thirty-six inches, the expenses necessary for spurs and 

 bunds will be trifling. 



8. From the head to a point at a distance of 4,755 feet, the course 

 of the canal is passed by two rows or mountain streams, one of minor 

 importance having a dam with two openings of ten feet each, the other 

 with a dam of ten openings, as represented at fig. 13. The quantity 

 of boulders, or river stone, in this part of the country will render the 

 execution not only easy, but will enable them to be completed at a 

 very moderate expense. These dams will be precisely the same as 

 those in use of the Doab Canal, with sleeper planks, etc. etc. 



9. The second division of the work may be considered as that from 

 the letters A to N, or 18,916 feet ; on this line the course of the Canal 

 creeps along the slopes and scarps of the high banks, descending to the 

 Jumna ; and the level of the Canal bed, which is proposed to be twenty- 

 four inches per mile, strikes out on the surface of the country at the 

 latter figure. Four mountain streams will be passed by aqueducts, two of 

 them having a span of fifty-one, of forty-five, and the other of twenty- 

 five feet. Care and attention is all that is required to surmount the 

 difficulties of excavation on this line ; neither the original labor, nor 

 the chance of after- accident is equal to that which I anticipated on the first 

 mile of the Beejapoor water-course. The soil is full of large shingle or 

 boulders, and the excavation which has been estimated for, is ample to 

 render the work fully efficient. Portions of the line where the Canal 

 comes in contact with high banks is proposed to be constructed of 

 masonry, as represented on the section in fig. 15. The masonry chan- 

 nel will lead to and from the masonry aqueducts, as well as from the 

 dam of ten openings, which I have described as constituting part of the 

 work of the first division, and immediately south of this dam, grooves 

 for sleeper planks will \>e made in the main channel, so as to keep it 

 clear of water during floods. As the breadth of main channel and 

 that of dam- openings correspond, the same sized plank will do for both. 



10. The third division, from the letter N to the Seetla or Sutwala 

 Row, or a distance of 21,834 feet, is plain digging. Six lines of drain- 

 age are crossed : two by aqueducts of twenty-five feet span each ; four 

 by dam or outlet, one of which has ten openings of ten feet each ; and 

 three outlets of ten feet each. The slope of the Canal bed is still 

 continued on a descent of twenty-four inches per miles the extra 



5 H 



