16 BULLETIN 198, TJ. S. DEPARTMENT OF AGEICULTUEE. 



All improvements were planned from the data collected by the 

 preliminary survey, as the ditches have not been located in the field. 

 The location survey may show that some shght changes would be 

 advisable, but such changes wiU not materially affect the amount of 

 excavation. The lateral ditches in most cases follow section lines to 

 avoid cutting up the land into irregular tracts, but it was necessary 

 to locate some of them without regard to land lines. The main 

 ditches are briefly discussed in following paragraphs: 



Ditch No. 13. — It is proposed to construct an earth dam, at an 

 estimated cost of S5,000, across Walnut Lake near the center of sec. 

 11, T. 10 S., R. 4 W., and to divert the water from the Wells Bayou 

 watershed to Bayou Macon through ditch No. 13. The probable 

 high water in Walnut Lake will be 155.7, which is approximately the 

 same as that under existing conditions. The low-water elevation will 

 not be changed to any appreciable extent. A small earth dam is to 

 be constructed across Caney Bayou in sec. 33, T. 10 S., E.. 4 W., at 

 an estimated cost of $300, to prevent overflow mto the district from 

 Eastham Brake. The side slopes of ditch No. 13 are planned to be 

 1 to 1 except from station 450 (in sec. 12, T. 11 S., R. 4 W.) to station 

 781 (the end), where side slopes of 2 to 1 are necessary on account of 

 the sandy soil that will be encoimtered. 



Ditch No. 19. — ^A solid waste bank, to prevent overflow, is neces- 

 sary at the following points along ditch No. 19 : On the east side where 

 the ditch crosses Wells Bayou in sec. 7, T. 10 S., R. 3 W.; on the west 

 side at both crossings of Dry Bayou in sec. 31, T. 10 S., R. 3 W. ; and 

 on the west side at Coon Bayou in sec. 6, T. 11 S., R. 3 W. An earth 

 dam, estimated to cost $1,000, is planned to be constructed across 

 Coon Bayou in the northeast part of sec. 18, T. 11 S., R. 3 W., to 

 prevent high water in ditch No. 19 from flowing to the east. This 

 dam should be constructed with a small sluice gate in order that Coon 

 Bayou may be drained during low water. On account of the sandy 

 soil the side slopes are made 2 to 1 from station 765 (in sec. 19, T. 10 

 S .,R. 3 W.) to station 895 (in sec. 6, T. 11 S., R. 3 W.), and from sta- 

 tion 1003 to station 1014 (in sec. 18, T. 11 S., R. 3 W.). The section 

 from station 765 to station 895, where the average depth of cut is 

 about 14 feet and the maximum cut is 21.5 feet (on the bank of Amos 

 Bayou), is estimated at 9 cents per cubic yard. All other excava- 

 tion on this ditch is estimated at 8 cents. From station 949 to sta- 

 tion 1003 (in sec. 7, T. 11 S., R. 3 W.) the ditch foUows the channel of 

 Coon Bayou and no excavation is required. The section from station 

 949 to station 976 must be cleared and grubbed. This work is estimated 

 at $3,000 per mile. From station 976 to station 1003 the only improve- 

 ment needed is clearing at an estimated cost of $2,000 per mile. 



The excavation work in ditch No. 19 ends in Bayou Macon on the 

 south Hne of sec. 28, T. 11 S., R. 3 W. From this point to Macon 



