§ 16.15.110. Shape, slope, and depth.

A.

Decks shall slope away from the pool to perimeter deck drains to prevent debris from being washed into the gutter return system. Decks may not slope more than a ratio of 1:24.

B.

Pool bottoms may not slope more than a ratio of 1:8, unless the edge of a steeper slope is clearly marked by a floating safety line or permanent barrier. The safety line shall be kept in place at all times, except when the pool is used for lap swimming or competition and is closed to the general public. The safety line or permanent barrier shall be placed one foot toward the shallow end, away from the break point line, and shall be strung tightly to allow a swimmer to hold onto the line. Underwater ledges are prohibited. Pool sides shall be vertical:

1.

To a water depth of at least six feet; or

2.

For a distance of 2.5 feet below the water level, below which the wall shall be curved to the bottom with a radius not to exceed:

a.

At the three-foot depth, a six-inch radius cove at the base of a two and one-half-foot vertical section;

b.

At the three and one-half-foot depth, a one-foot radius cove at the base of a two and one-half-foot vertical section; and

c.

At the five-foot depth, a one and one-half-foot radius cove at the base of a three and one-half-foot vertical section; from this point, the springline or point of departure from vertical may, through an eight-foot transitional zone, measured horizontally, to a typical deep end wall design consisting of at least a two and one-half-foot vertical section, with a curved section from that point meeting the floor of the pool; the requirements of this paragraph are indicated on Table B of this subsection.

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TABLE B

MAXIMUM RADIUS COVING OF POOL INTRUSION DIMENSIONS BETWEEN POOL FLOOR AND WALLS

Pool depth	2 ft.	3 ft.	3.5 ft.	5 ft.	5 ft.
Minimum sidewall vertical depth (springline)	1.5 ft.	2 ft., 2 in.	2.5 ft.	3.5 ft.	3.5 ft.
Maximum radius of curvature	6 in.	10 in.	1.0 ft.	1.5 ft.	**

 

**Maximum radius equals pool depth minus the vertical wall depth. Radius of coving may not intrude into pool within diving envelope.

Note: For pool depths failing between the depths listed in this table, values may be interpolated.

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C.

The deck shall be at least six and one-half feet wide. Where diving boards are located, the deck shall be at least 13 feet wide.

D.

The ratio of the area of the pool deck to the surface of the pool water shall be at least 1: 1.

E.

The dimension in the diving area of a pool shall conform to Table C of this subsection.

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TABLE C

DIVING AREA DIMENSION REQUIREMENTS

Height of Board (in meters)	Minimum Water Depth at End of Board and 12 Ft. Beyond	Horizontal Separation between Board, Tower, and Side Walls	Unobstructed Head Room Above Diving Board/Tower
0.0—2.0 m.	11 ft., 10 in.	10 ft.	16 ft., 6 in.
2.1—3.0 m.	12 ft., 6 in.	10 ft.	16 ft., 6 in.
3.1 m. or higher	15 ft.	10 ft.	16 ft., 6 in.

 

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F.

Water depth shall be clearly and durably marked on the pool walls and deck in numerals at least four inches high with a color-contrasting background. The depth of the water in the pool shall be plainly marked at or above the water surface on the vertical pool wall. Depth markers shall be:

1.

Installed on the edge of the deck or walk next to the pool, at maximum and minimum depths, at each point where the pool depth drops more than one foot, and at intermediate one-foot increments of depth; and

2.

Placed at intervals not greater than 25 feet around the perimeter of the pool.

G.

The words "NO DIVING" shall be clearly and durably printed on the deck where depths are less than five feet. Lettering shall be at least four inches high with a color-contrasting background.

H.

If depth markers cannot be placed on the vertical walls above the water level, other markings that are plainly visible to persons in the pool shall be used. The depth in the diving areas shall be clearly marked.

(AO No. 99-11, § 6, 2-9-99)