f 
Bul. 1358, U. S. Dept. of Agriculture PLATE XVI! 
F172862 
Fic. |.—SETTLING BASINS REDUCE THE RATE OF SILTING OF MAIN 
RESERVOIRS 
F1I72799 
Fig. 2.—A SMALL, INEXPENSIVE Mupb DAM IN A SHORT ERODING SIDE 
CANYON ABOVE A RESERVOIR 
The structures shown in Figures 1 and 2 catch much silt, which after partly drying can be 
removed at intervals by team and scraper 
