Section 675IAC20-5-5. Dimensional design

   (a) No limits are specified for the shape of water attractions except that consideration shall be given to shape from the standpoint of safety and circulation of the water.

  (b) There shall be no protrusions, extensions, means of entanglement, or other obstructions in the bathing area that can cause the entrapment or injury of the bather.

(1) At no time shall interior basin divider walls be submerged during operation.

(2) Interior basin divider walls shall not exceed eighteen (18) inches in width.

  (c) There shall be construction tolerances allowed on all dimensional designs. See Table 5-1 as follows:

Table 5-1
PERMITTED CONSTRUCTION TOLERANCES FOR WATER ATTRACTIONS
Design Requirement	Permitted Construction Tolerances (in inches, unless otherwise noted)
Length, overall	+ 3
Width, overall	+ 3
Depth, deep area a, b	+ 3
Depth, shallow area b, c	+ 2
Floor nozzle flushness	+ 1/8
Stair tread and riser uniformity d	+ 3/8
Waterline, water attractions with adjustable weir skimmers	+ 1/4
Waterline, water attractions with nonadjustable skimming system (that is, gutters and zero-depth overflow trenches)	+ 1/8
Walls	+ 3 degrees
Other dimensions not specified above	+ 2
a As measured at a location measured from the basin wall equal to 60% of the nominal basin depth and at the location of the depth marking.
b For dimension requirements for diving wells, see Rule 2.
c As measured 3 feet from the basin wall at the location of the depth marking.
d Except as allowed by 675 IAC 20-2-14(e)(2): Bottom Stair Riser +/- 2 inches.

  (d) Design requirements as listed in Table 5-2 shall be applied to all water attractions under the scope of this rule as follows:

Table 5-2
DESIGN REQUIREMENTS BY WATER ATTRACTION TYPE
	Water Attraction Type
Parameter	Activity	Leisure River	Plunge	Vortex	Wave
Access entry provisions	Limited by design	Limited by design	Slide only	Limited by design	Beach end
Maximum floor slope	1:12	1:12	1:7	1:12	1:12
Maximum allowed depth	NR	42 in.	NR	42 in.	NR
NR = Not Required.

(Fire Prevention and Building Safety Commission; 675 IAC 20-5-5; filed Mar 25, 2011, 10:19 a.m.: 20110420-IR-675090789FRA; readopted filed Aug 7, 2013, 8:51 a.m.: 20130904-IR-675130181RFA)