14 BULLETIN 114, TJ. S. DEPARTMENT OF AGRICULTURE. 



The fall on this branch amounts to 38 feet in 4.8 miles, or about 8 feet 

 to the mile. The watershed area is quite rolling, with marked- differ- 

 ences in elevation between the highlands and the bays, and nearly 

 all of the former are now under cultivation. The proposed improve- 

 ments on this branch consist of a handmade ditch for the 6,700 feet 

 above the Mill Road, and the minimum dredge ditch for the remaiiider 

 of the 25,240 feet total length. Two 30-foot bridges will be required. 



The Savannas lie in the flattest section of the district, nearest the 

 Savannah River. The area drained, except that tributary to Rum 

 Branch, is extremely flat for the most part, being composed almost 

 entirely of flat swamp covered with an excellent growth of timber. 

 The soil is very rich and could be converted into valuable farm 

 land. The Savannas are several hundred feet wide, with no dis- 

 cernible channel or run. The vegetation in the upper part of this 

 swamp is quite different from that in the other branches, for the others 

 are covered with thick growths of timber and brush., while the 

 Savannas are comparatively open, having a thick growth of grass 

 and rushes about 3 feet high and only an occasional bush. The fall 

 in the Savannas is only 6 feet in 3.8 miles. The proposed improve- 

 ment consists of a dredge ditch of minimum section for the entire 

 length of 19,950 feet. No new bridges will be needed. 



To prevent the occasional overflow from the Savannah River, the 

 breaks in the clay ridge on the west boundary of the district should 

 be closed by low dikes. The amount and cost of this work has not 

 been estimated. 



Rum Branch drains an area consisting mostly of good rolling land 

 now under cultivation, but including Rogers Bay and several other 

 large bays. The upper end of the swamp along this branch is about 

 800 feet wide, but -it soon narrows to about 100 feet, which width is 

 maintained for about 2 miles; below this the width becomes very 

 irregular. Neither the bays nor the lower end of the swamp is under 

 cultivation. The fall of this branch is ample for its whole length, 

 being 54.5 feet in 6.4 miles, or 8.5 feet to the mile. The proposed 

 improvements consist of a handmade ditch for the upper 5,400 feet 

 and a minimum dredge ditch through the remainder of the branch, 

 which has a total length of 34,200 feet. Two new 30-foot bridges will 

 be required. 



Hurricane Branch drains about 1 square mile of fairly high and 

 slightly rolling ground, practically all under cultivation. The swamp 

 is very narrow the whole length of the branch. The fall amounts to 

 23.5 feet in 2.1 miles. There is at present a good ditch throughout 

 the length of Hurricane Branch, 4 to 10 feet in top width, 3 to 4 feet 

 in bottom width, and 2\ to 6 feet deep. This ditch has a good flow 

 of water, but it could be improved by cleaning and straightening, 

 which improvements are the only ones recommended on this branch. 

 The length of the ditch is 11,150 feet. 



