11B-1009.5 Transfer systems

Note: This document or portion of document references a state or local code that aligns with the 2010 ADA Standards requirements.

11B-1009.5 Transfer systems.

Transfer systems shall comply with Section 11B-1009.5.

11B-1009.5.1 Transfer platform.

A transfer platform shall be provided at the head of each transfer system. Transfer platforms shall provide 19 inches (483 mm) minimum clear depth and 24 inches (610 mm) minimum clear width.

A plan view shows a transfer platform at the top of a series of transfer steps leading down into the water. The platform at the top has a clear depth of 19 inches minimum and a clear width of 24 inches minimum.

FIGURE 11B-1009.5.1 SIZE OF TRANSFER PLATFORM

11B-1009.5.2 Transfer space.

A transfer space of 60 inches (1524 mm) minimum by 60 inches (1524 mm) minimum with a slope not steeper than 1:48 shall be provided at the base of the transfer platform surface and shall be centered along a 24 inch (610 mm) minimum side of the transfer platform. The side of the transfer platform serving the transfer space shall be unobstructed.

A plan view shows clear deck space 60 by 60 inches minimum at the base of the transfer platform surface that is centered along a 24 inch minimum unobstructed side of the transfer platform.

FIGURE 11B-1009.5.2 CLEAR DECK SPACE AT TRANSFER PLATFORM

11B-1009.5.3 Height.

The height of the transfer platform shall comply with Section 11B-1009.4.2.

11B-1009.5.4 Transfer steps.

Transfer step height shall be 8 inches (203 mm) maximum. The surface of the bottom tread shall extend to a water depth of 18 inches (457 mm) minimum below the stationary water level.

Advisory 11B-1009.5.4 Transfer steps. Where possible, the height of the transfer step should be minimized to decrease the distance an individual is required to lift up or move down to reach the next step to gain access. ◼

An elevation drawing shows transfer system steps that are 8 inches high maximum which extend to a water depth of 18 inches minimum below the stationary water level

FIGURE 11B-1009.5.4 TRANSFER STEPS

11B-1009.5.5 Surface.

The surface of the transfer system shall not be sharp and shall have rounded edges.

11B-1009.5.6 Size.

Each transfer step shall have a tread clear depth of 14 inches (356 mm) minimum and 17 inches (432 mm) maximum and shall have a tread clear width of 24 inches (610 mm) minimum.

A plan view shows a transfer system with each step having a tread clear depth of 14 to 17 inches and a tread clear width of 24 inches minimum.

FIGURE 11B-1009.5.6 SIZE OF TRANSFER STEPS

11B-1009.5.7 Grab bars.

At least one grab bar on each transfer step and the transfer platform or a continuous grab bar serving each transfer step and the transfer platform shall be provided. Where a grab bar is provided on each step, the tops of gripping surfaces shall be 4 inches (102 mm) minimum and 6 inches (152 mm) maximum above each step and transfer platform. Where a continuous grab bar is provided, the top of the gripping surface shall be 4 inches (102 mm) minimum and 6 inches (152 mm) maximum above the step nosing and transfer platform. Grab bars shall comply with Section 11B-609 and be located on at least one side of the transfer system. The grab bar located at the transfer platform shall not obstruct transfer.

Exception: Grab bars on transfer systems shall not be required to comply with Section 11B-609.4.

Two elevation drawings show grab bars at transfer systems. Figure (a) shows individual grab bars on the platform and each step with the top of the gripping surface 4 to 6 inches above each step and transfer platform. Figure (b) shows a continuous grab bar with the top of the gripping surface 4 to 6 inches above the step nosing and transfer platform.

(a) individual grab bars

(b) continuous grab bars

FIGURE 11B-1009.5.7 GRAB BARS

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2022 California Standards for Accessible Design Guide (effective January 1, 2023)