DRAINAGE OF BLACK AND BOGGY SWAMPS, S. C. 17 



to Black Swamp. The fall will be 22 feet in 1.9 miles. Two 15-foot 

 bridges will be required. 



Ballifore Branch heads in the flat woods southeast of Robertville. 

 The watershed area is slightly rolling and is well under cultivation. 

 The swamp averages about 100 feet wide, and the fall on the branch 

 is 26 feet in 1.3 miles. The improvement proposed consists of a 

 handmade ditch for the entire length of 7,000 feet. One 15-foot 

 bridge will be required. 



Rose Hill Branch drains an area that is fairly rolling, and a large 

 part of which is cultivated. The swamp along this branch is rather 

 wide at the upper end, but gradually decreases to not more than 50 

 feet at the lower end. The fall is about 16 feet to the mile. The 

 proposed improvement is a handmade ditch for the entire length of 

 7,600 feet. One 15-foot bridge will be required. 



IMPROVEMENTS IN INDEPENDENT WATERSHEDS. 



Church Branch joins Black Swamp outside the drainage district. 

 The upper end of the watershed area is quite flat and consists of open 

 pine woods and grass, but the lower end is very rolling, with good 

 natural drainage; nearly all of the land is under cultivation. The 

 swamp along Church Branch is only 50 to 100 feet wide at the upper 

 end, but it gradually increases until at the lower end it is about 500 

 feet wide. The fall on this branch amounts to 40 feet in 3.9 miles. 

 The proposed improvement consists of a minimum dredge ditch 

 20,400 feet long. Five bridges of 30-foot span will be required. 



Hog Branch joins King Branch and empties into the Pallachucolla 

 Savannas, finally reaching Black Swamp lower down. The upper end 

 of the watershed is very flat, composed almost entirely of flat woods, 

 with occasional ponds and bays, all in timber. This section needs 

 drainage outlets badly, as water stands several inches deep on it for 

 long periods after heavy rains. The lower section of the watershed 

 is more rolling, and fair natural drainage is secured by reason of a 

 marked drop from the adjoining lands to the branch. A large portion 

 of this section is under cultivation. The swamp along Hog Branch is 

 very narrow at the upper end, but toward the lower end it widens to 

 about 300 feet. The total fall on this branch is 46.5 feet in 6.1 miles, 

 the slope increasing somewhat from the upper to the lower end. The 

 proposed improvement consists of a ditch throughout Hog Branch 

 and extending 2\ miles northward into the flat woods. The upper 

 mile will be a handmade ditch, and the remainder a dredge ditch of 

 minimum size, the total length being 32,150 feet. There is at present 

 in the branch a small ditch in fair condition, but so small that it has 

 not been considered in estimating the excavation. Two 30-foot 

 bridges will be needed. 



