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2010 ADA Standards for Accessible Design Pocket Guide

1003.3.2 Boarding Pier Clearances.

Boarding piers at boat launch ramps shall provide clear pier space 60 inches (1525 mm) wide minimum and shall extend the full length of the boarding pier. Every 10 feet (3050 mm) maximum of linear pier edge shall contain at least one continuous clear opening 60 inches (1525 mm) wide minimum.

EXCEPTIONS: 1. The clear pier space shall be permitted to be 36 inches (915 mm) wide minimum for a length of 24 inches (610 mm) maximum provided that multiple 36 inch (915 mm) wide segments are separated by segments that are 60 inches (1525 mm) wide minimum and 60 inches (1525 mm) long minimum.

2. Edge protection shall be permitted at the continuous clear openings provided that it is 4 inches (100 mm) high maximum and 2 inches (51 mm) wide maximum.

Advisory 1003.3.2 Boarding Pier Clearances. These requirements do not establish a minimum length for accessible boarding piers at boat launch ramps. The accessible boarding pier should have a length at least equal to that of other boarding piers provided at the facility. If no other boarding pier is provided, the pier would have a length equal to what would have been provided if no access requirements applied. The entire length of accessible boarding piers would be required to comply with the same technical provisions that apply to accessible boat slips. For example, at a launch ramp, if a 20 foot (6100 mm) long accessible boarding pier is provided, the entire 20 feet (6100 mm) must comply with the pier clearance requirements in 1003.3. Likewise, if a 60 foot (18 m) long accessible boarding pier is provided, the pier clearance requirements in 1003.3 would apply to the entire 60 feet (18 m). The following example applies to a boat launch ramp boarding pier: A chain of floats is provided on a launch ramp to be used as a boarding pier which is required to be accessible by 1003.3.2. At high water, the entire chain is floating and a transition plate connects the first float to the surface of the launch ramp. As the water level decreases, segments of the chain end up resting on the launch ramp surface, matching the slope of the launch ramp.
Pier clearances are shown in plan view.  Accessible boarding pier at a boat launch ramp has clear pier space 60 inches (1525 mm) long minimum, the full length of the boarding pier.  Every 10 feet (3050 mm) maximum of linear pier edge contains at least one continuous clear opening 60 inches (1525 mm) long minimum.

Figure 1003.3.2 Boarding Pier Clearance

A plan view shows that the width of the clear pier space can be 36 inches (915 mm) wide minimum for a length of 24 inches (610 mm) maximum where multiple 36 inch (915 mm) wide segments are separated by clear segments 60 by 60 inches (1525 by 1525 mm) minimum.

Figure 1003.3.2 (Exception 1) Clear Pier Space Reduction at Boarding Piers

An elevation drawing shows pier edge protection that is 4 inches (100 mm) high maximum and 2 inches (51 mm) thick maximum.

Figure 1003.3.2 (Exception 2) Edge Protection at Boarding Piers

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