CHAPTER X V . 

 ESTIMATES OF COST. 



An estimate of the cost of a proposed drainage work 

 is expected of the engineer, and is important before the 

 execution of the work begins. In the case of the drain- 

 age of a field or farm, a preliminary estimate may be 

 made from an inspection of the land based upon a 

 knowledge of what the drainage of other tracts of land 

 similar in requirements has cost. No correct estimate 

 can be made, however, until the lines have been lo- 

 cated and measured and the sizes of tile to be used 

 decided upon. 



The cost of material and labor in the locality where 

 the work is to be done must be ascertained and tabu- 

 lated. The following is a schedule of the items that 

 should be considered in estimates for farm drainage : 



1. Total number of each size of tile required. 



2. Cost of tile at factory. 



3. Cost of freight to nearest railroad station, if 

 shipped. 



4. Hauling from factory or station and distributing 

 on the drain lines. 



5. Digging ditches and laying tile. 



6. Filling ditches. 



7. Laying out and superintending. 



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