THE USE BOOK. 173 



eventually, wkh_the_cooeration of the local authori- 

 ties, to build a complete system of free roads and trails 

 through each Fore 



The Forest Service is not only willing but anxious 

 to cooperate in the construction and maintenance of 

 roads, trails, and bridges within the National Forests, 



Any community which desires to take advantage of 

 this offer should communicate with the Forest officer in 

 charge through the supervisor. 



The supervisor will transmit the request to the Forester in a 

 report covering the following points : Location and length of 

 the^Toad, width of roadway, and proposed maximum grade; 

 advantages to be gained and necessity of construction; number 

 and class of residents benefited; exactly what the local resi- 

 dents or county will contribute toward its construction and 

 maintenance in money, labor, tools, pov/der, or construction 

 material ; definite recommendations as to what action should 

 be taken by the Forest Service. 



A detailed estimate of cost to the Forest Service covering the 

 following points (this outline should also be followed in report- 

 ing on roads to be built entirely by the Forest Service) : 



Cost of survey. Unless it is certain that a good grade can be 

 had, a survey should be made of the route. What the survey 

 will cost will depend upon whether it is necessary to run more 

 than one line or not, and whether or not there is much brush. 



Cost per mile for clearing the right of way for the road. 



Cost per mile for grading. This will involve a thorough 

 knowledge of the country through which the road will pass, and 

 can only be obtained by a thorough inspection of the route. 

 The character of the soil should be carefully noted in addition 

 to the slope, size of openings necessary for waterways, and 

 approximate location of turn-outs. Bear in mind that there is 

 a vast difference in the cost of grading in earth and in solid 

 rock, the former costing from 16" to 25 cents per cubic yard, 

 while the latter will cost from 80 cents to $1.50^ per cubic 

 yard, depending in a great measure upon the labor employed. 



