INITIATING THE CAMPAIGN 



71 



THE ESTIMATE OF COST 



When the data mentioned have all been collected, work on the 

 estimate may be started. The instructions already quoted 

 provide for estimation of the costs of brushing streams or existing 

 ditches (one side only) clearing streams or existing ditches 

 (clearing channel of obstructions, connecting pools in stream 

 bod, etc.) and of new ditching, as follows: 



FORM XO. 3 



Note. — A-l, A-2, etc., indicate branches of Ditch or Stream A shown on 

 map. The lineal foot costs, given above for the sake of illustration, should 

 by no means be taken as applicable to all conditions. 



The above estimate gives the cost of the new work necessary — 

 in other words, the construction cost. 



The next thing required is an estimate of the maintenance 

 cost for the season — that is, the cost of keeping the ditches, 

 streams, etc., in shape. This consists of keeping grass, weeds, 

 floating matter and other obstructions out of them. Owing to 

 the great variations encountered, due to differences in topography, 

 soil, precipitation, etc., it is impossible to give any general rate 

 for this work. 



The next thing that requires attention is estimation of the 

 cost of the oil that will be needed and the cost of applying it, 

 including transportation. Some general information on oiling 

 jobs is given in the chapter relating to oiling. 



The cost of control by means of fish should next be calculated. 

 This is variable, according to local conditions and the scope of 

 the work. It should include costs of collection, aquaria, distri- 

 bution, protection, pond and stream cleaning, etc. 



