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MOSQUITO ERADICATION 



If no water is available, the ditch should be inspected after the 

 first shower, and any corrections that may be needed made then. 



COST OF ORDINARY HAND DITCHING 



Anti-mosquito ditching is generally estimated on a lineal 

 foot, rod or mile basis, instead of a cubic yard basis. Costs, 

 of course, vary materially with the size of the ditch, the nature 

 of the soil, the rate of wages paid and the efficiency of labor. 

 For these reasons, it is impossible to give any exact figures as 

 to costs of hand ditching. 



As a general proposition, it may be said that, with ordinary 

 soil, unskilled labor and wages from $2 to $3 a day, the cost of 

 the average hand-dug ditch should range somewhere between 2 

 cents and 5 cents a lineal foot. Swamp work, of course, will 

 greatly exceed these figures. The presence of large numbers of 

 roots and stumps also will increase costs. 



The following figures represent approximate hand-ditching 

 costs on several jobs handled by the writer in the South, the 

 ditches having an average sectional area of from 2 to 4 square 

 feet and the ditch mileage on each job ranging from 4 to 10 

 miles: 



HAND DITCHING IN SWAMPS 



Ditching by hand in real swamp areas is tedious and costly 

 in the extreme. Where practicable, the ditches should be laid 

 out with lines and the men spread out as already described. In 

 some cases, however, this is not practicable. 



In a large anti-mosquito swamp drainage project in Georgia, 

 with which the writer was connected, the earth was so soft that 



