DRAINAGE OF WET LANDS OF SOUTHERN LOUISIANA. 



49 



AREA NO 7, GUEYDAN, VERMILION PARISH, LA. 



This district, containing 5,600 acres, is the first one being developed in a 

 tract of some 90,000 acres lying in the southern portion of Vermilion Parish 

 and bordering on the northern shore of White Lake. The general nature of the 

 soil and other natural conditions have already been described. The elevation 

 of the surface above mean tide level is between 2 and 4 feet and the slope of 

 the surface is from north to south. This tract is a typical example of the 

 higher and firmer prairies of this section as contrasted with those of the softer 

 type immediately along the rivers of this part of the State. (See PL II, fig. 1.) 



DRAINAGE DITCH- 



1000 ZOOO 3000 -4000 sooo 



10000 FEET 



G.F:P.,del. 

 Fig. 15. — Sketch map of area No. 7, Gueydan, La., showing ditches and levees. 



Work was begun on this district in June, 1911, and the pumping plant was 

 started about March, 1912. Figure 15 shows the general arrangement of 

 canals, levees, and ditches. 



Levees. 



Along the north side of this district a drainage canal had been cut some 

 years previous to the beginning of the present work. A spoil bank of a cross-' 

 sectional area nearly sufiicient to serve as a levee still exists on the south side 

 of this canal. Along the other three sides the levee canals are on the inside of 

 the district. In cutting a 25-foot canal 5 feet deep more than enough material 



