PATHS 65 



should be made for the removal of the water which has 

 collected. This can be done by providing a chute of agri- 

 cultural tile to the nearest catch-basin or sewer. Drain- 

 age for street sidewalks can be had by running a short pipe 

 to the gutter. 



If a path is close to a steep terrace, it may be necessary 

 to carry surface water in a gutter hi the path itself. (Fig. 

 14, page 45.) In the case of gravel walks or of cement, 

 asphalt or brick walks with gravel wings, the gutter may 

 be made of small stone blocks. Inlets and catch-basins 

 will have their gratings in the gutters. These gratings 

 should be slightly depressed or else the water will pass 

 them without entering. If the slope is steep the gratings 

 should be placed level or sometimes at a slight inclination 

 against the grade. If the walk is nearly level it may not 

 be necessary to pave the entire gutter. It is often enough 

 to place the blocks every foot or two, which is sufficient to 

 prevent the washing away of the gravel. 



(2) Shape in Plan. Park walks may be either straight 

 or curved, depending on the nature of the design. In 

 the formal garden the straight walk is proper, but in the 

 informal design straight lines should be avoided. Curves 

 should not be laid out arbitrarily. A curve should always 

 have its reason. This is afforded by a natural obstacle or 

 by the topography. If natural obstacles do not exist, they 

 can be introduced in the design. 



(3) Wings. In order to increase the effective width of 

 a park walk, wings of gravel 4 feet wide on each side are 

 often used. These wings may have the full cinder foun- 

 dation as in the cement, asphalt or brick pavement. In 

 economical construction the cinder foundation is omitted. 

 (See Fig. 15, on page 47.) When the paths are not crowded, 

 all of the walking will be on the middle part, the wings 



