14 BULLETIN 114, L T . S. DEPARTMENT OF AGBICULTURE. 
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 Koad, and the minimum dredge ditch for the remainder 
of the 25,240 feet total length. Two 30-foot bridges will be required. 
The Savannas he 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 
shghtly 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 2h 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. 
