LAWNS: GRADING AND UPKEEP 



67 



Fig. 67. — A section through foundation wa 

 showing the revised grade at the point where th^ 

 natural grade slopes toward the house. The 

 line CC is the line of the natural grade; the line 

 BB is the revised surface grade; the line AA is 



the revised sub-grade. An agricultural tile is provided at the base of the well to prevent 



seepage running into the cellar. 



Fig. 68. — A section showing the construction of a dry well for surface water. — See page 68 



LAWNS ASCENDING FROM HIGHWAYS 



If the house is located on ground ascending from the highway, 

 with stOl higher ground in the rear of the house site, it is necessary 

 to provide a plateau for the building (Fig. 65). This should be 

 approached with a bold hand and the cutting out behind the build- 

 ing made broad and generous to avoid a sense of being shut in. The 

 revised siu-face should be sloped away frora the building in all direc- 

 tions. The minimum fall on the axis of the building should be 

 one-eighth of an inch to the foot, while from the center toward the 

 ends of the building at least one-quarter of an inch to the foot should 

 be provided for. 



LAWNS DESCENDING FROM HIGHWAYS 



Somewhat the same conditions prevail on ground descending 

 from the highway (Fig. 66). In both instances the precaution 

 of waterproofing the house foundations, either with a tar paint or 

 by building them of waterproofed concrete, should not be over- 

 looked. 



SUB- GRADE 



The lawn surface around the house should have a minimum 

 slope of one-half an inch to the foot and care should be taken to 

 see that the sub-grade has a similar inclination (Fig. 67). No mat- 

 ter how great the surface slope away from the house is, if the old 



