362 



PARKS 



five-foot maximum depth at any edge makes it impossible for a person to 

 enter deep water except from springboards, but still gives sufficient depth 

 for diving from edge, (e) The deep area is sufficient to accommodate divers 

 from the four springboards and diving tower. Except for the purpose of 

 diving, a few aquatic games and practice in life-saving, deep water has 

 little utility, and, when sufficient areas at depths less than five feet are 

 provided, is used very little. (/) Except in depths greater than five feet, 

 slope of bottom is nowhere more than two per cent, thus eliminating all 

 cause for slipping from this source. This slope is still sufficient to afford 

 good drainage in cleaning bottom of pool, (g) With the entire area, 15,000 

 square feet, deep enough for swimming, and 87 per cent of it less than five 

 feet in depth, the maximum of utility in proportion to water volume is 

 secured. 



4. Depths marked with lo-inch numerals of brass or mosaic tile at 

 12 points on edge of runway surrounding pool. Advantages: Shallow depth 

 of greater area of pool makes it more important to place depth markings 

 so as to be readily seen by persons approaching pool than in edge above 

 scum gutter for information of those in the water, as is customary in the 

 old-style pool. 



5. On diving tower which is located adjacent to deep area, sign is 

 placed reading as follows: "Seventeen and one-half feet from edge of pool 

 opposite tower, water is 10 feet deep." At foot of each low springboard is 

 sign reading: "Two feet from end of springboard water is seven feet deep." 

 At each high springboard sign reads, "Five feet from end of springboard 



OlAJCOI . UDIGllY 



DUIGI 

 JKIHKlTo fOOi 



BAiu uom 



PLATE No. 159. PLOT PLAN 



