14 NATIONAL FOKEST MANUAL. 



predecessors, of sufficient water for the full operation of the project 

 works. 



Application must be made for the occupancy and use of such 

 lands for a definite, limited period only, which period will allow a 

 reasonable time for the preparation and filing of the final applica- 

 tion as prescribed in Regulation L-ll. The time prescribed in the 

 preliminary permit may upon application be extended by the Sec- 

 retary if the completion of the final application has been prevented 

 by unusual climatic conditions that could not reasonably have been 

 foreseen or by some special or peculiar cause beyond the control of 

 the permittee. 



An application for a preliminary power permit shall not be com- 

 plete until every map or paper required by Regulation L-9 and by 

 this regulation shall have been filed in the form prescribed. 



Beg. L-ll. All applications for final permits to occupy and use 

 National Forest lands for power projects of more than 100 horse- 

 power total capacity shall consist of the following items (in addi- 

 tion to those specified in Regulation L-9) : 



(D) An application in triplicate on Form 60. 



(E) - 



Maps of location and plans of structures on tracing linen, with 

 three print copies cut to uniform size not larger than 28 by 40 inches 

 and not smaller than 24 by 36 inches, with graphical scale not less 

 than 6 inches in length drawn, thereon. Separate sheets shall be 

 used for maps of location whenever the whole survey can not be 

 shown upon a single sheet. 



(1) The following maps and plans shall be sumbitted for each 

 reservoir that will be a part of the power project or projects applied 

 for: (a) A contour map of each reservoir site, dam, and dam site 

 on a scale of not more than 400 feet to the inch, with a contour in- 

 terval of not more than 10 feet. The contour map for each reservoir 

 site shall show the high- water flow line and in case the reservoir is 

 to be used in whole or in part for diversion purposes, the flow line 

 fixed by the estimated average effective head, and also a table of areas 

 and capacities 'for each flow line and each contour line, (b) A cross 

 section of each dam site along the center line of the proposed dam, 

 with a graphical log properly located thereon of each boring, test 



Sit, or other exploration, and a brief statement of the character and 

 ip of underlying material r (c) Plans, elevations, and cross sections 

 of the dams, showing spillways, sluiceways, or sluice pipes, and other 

 outlet works; and also a statement of the volume of the dam, the 

 character of the materials used, and the type of construction. 



(2) The following maps and plans shall be submitted for the 

 entire length of each water conduit, from intake to tailrace outlet, 

 that will be a part of the power .project or projects applied for: 

 (a) A contour map and profile of the entire water-conduit location 

 on a scale of not more than 400 feet to the inch, with contour interval 

 of not more than 10 feet. The contours shall cover either an area 

 of 100 feet in width on each side of the center line of the water 

 conduit or a difference in elevation of at least 25 feet above and below 

 the grade line of the conduit. This map shall show the transit line 

 of the survey and the center line of the proposed final location of 

 the water conduit, including curves between tangents. This map 

 shall also show what sections of the water conduit will be in flume, 

 ditch, tunnel, pipe, etc., and the grade of each section, (b) PlansJ 



