214 ENGINEERING FOR LAND DRAINAGE. 



but to outline the ground to be gone over in arriving 

 at the cost of drainage in any locaHty in order that the 

 figures may tell their own story in a comprehensive 

 way. It may be remarked that some land will pay a 

 large profit on the cost of drainage, while other land 

 is not worth it. 



Cost of Work under Drainage District Organisation, 



In case of drainage work which must be done under 

 the provisions of a State drainage law, great care 

 should be taken by the engineer and others who have 

 direction of the proceedings to act strictly in accord- 

 ance with the directions of the statute in every partic- 

 ular. The plans and estimates form the basis of all 

 subsequent work and should be most carefully prepared 

 and considered. 



The cost of each drain, whether open or of large tile, 

 which is used for an outlet should be estimated sep- 

 arately, and be so scheduled, for the reason that in the 

 classification and assessment of lands according to 

 benefit conferred the cost of separate drains should be 

 taken into account. The cost of the various items for 

 which the law makes the organization responsible 

 should be closely canvassed. 



The cost of engineering, and of administration, which 

 includes legal expenses, fees of commissioners, and 

 superintendence, should be added to the cost of the 

 execution of the work. This, of course, will vary with 

 the size of the district and the legal difficulties that 

 may arise, but is usually not less than 1 5 per cent of 

 the cost of construction. 



Offsetting the estimated expense of the work should 



