Drainage l>y Steam Poicer. 



IGl 



jamin Hick and Son, of Bolton, the celebrated engine-manufac- 

 turers, got the contract, and their work has given the greatest 

 satisfaction. 



In laying out the drainage works, Mr. Boosie 

 •availed himself of those very valuable plans 

 now publishino^ by the Board of Ordnance, 

 upon a scale of 6 inches to the mile, and which, 

 "when completed, will comprise the whole of 

 the six northern counties of England. The 

 levels taken were all checked by, and had re- 

 ference to, the levels shown on these plans. 



The embankments which had to be con- 

 structed were made with a slope of If to 1, 

 and were puddled in the centre for 2 feet wide, 

 and to a depth of 1 or 2 feet below the founda- 

 tion. In the margin is a section of the em- 

 bankment, sluice, 6cc., as they appear at a short 

 distance to the west of the engine. 



The new watercourse shown in the section 

 is used for conveying the drainage water to 

 The soil excavated from this was 



the engine. 



m lormmg the embankment 



and Mr. 



Boosie found that an excavation of 25 cubic ^"^^ 

 feet was required to make good an embank- 

 ment of 20. 



From the preceding section it will be seen 

 that the new watercourse was 19 feet from 

 the foot of the embankment. Although so 

 •distant, yet, in forming the latter, it was neces- 

 sary in one part of the work, where the founda- 

 tion was a soft peat, to pile the ground for 30 

 yards in length, to prevent the weight of the 

 embankment pressing in the side of the water- 

 course. In addition to this it was also thought 

 desirable to divert a considerable length of the 

 watercourse to a greater distance. 



The mode adopted in piling is shown by 

 the following sketch. 



Side nest Embankment. 



deep. \ 



< - 4 ft. - > 



The piles were young larch-trees, 18 to 20 feet 

 long, and to them strong rails were transfixed 

 and fastened by nails to a depth of from 2 to 3 



VOL. XIV. 



