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J. FLOORS AND LEVELS
<br />Level area is defined as "a specified surface that does not have a slope in any direction exceeding one unit vertical in 50 units horizontal (2 percent slope).
<br />1. In buildings and facilities, floors of a given story shall be a common level throughout, or shall be connected by pedestrian ramps or passenger elevators.
<br />2. Ground and floor surfaces along accessible routes and in accessible rooms and spaces, including floors, walks, ramps, stairs, and curb ramps, shall be stable, firm, and slip-resistant.
<br />3. Changes in level up to ¼ inch may be vertical and without edge treatment.
<br />4. Changes in level between ¼ inch and ½ inch shall be beveled with a slope no greater than one unit vertical in 2 units horizontal (50 percent slope).
<br />5. Changes in level greater than ½ inch shall be accomplished by means of a curb ramp, ramp, or elevator.
<br />6. If carpet or carpet tile is used on a ground or floor surface, then it shall be securely attached; have a firm cushion, pad or backing or no cushion or pad; and have a level loop, textured loop, level cut pile, or level cut/uncut pile texture.
<br />The maximum pile height shall be ½ inch. Exposed edges of carpet shall be fastened to floor surfaces and have trim along the entire length of the exposed edge.
<br />7. If gratings are located on floors, then they shall have spaces no greater than ½ inch wide in one direction. If gratings have elongated openings, then they shall be placed so that the long dimension is perpendicular to the dominant
<br />direction of travel.
<br />K. CORRIDORS & AISLES
<br />1. Every corridor and hallway serving an occupant load of 10 or more shall not be less than 44 inches in width.
<br />2. Corridors and hallways serving an occupant load of less than 10 shall not be less than 36 inches in width.
<br />3. Corridors and hallways that are located on an accessible route and exceed 200 feet in length shall have a minimum clear width of 60 inches. If an accessible route has less than 60 inches clear width, then passing spaces at least 60
<br />inches by 60 inches shall be located at intervals of 200 feet maximum. A “T” intersection of two corridors or walks is an acceptable passing place.
<br />4. Circulation aisles and pedestrian ways shall be sized according to functional requirements and in no case shall be less than 36 inches in clear width.
<br />5. Every portion of every building in which are installed seats, tables, merchandise, equipment, or similar materials shall be provided with aisles leading to an exit.
<br />6. Every aisle shall be not less than 36 inches wide if serving only one side, and not less than 44 inches wide if serving both sides.
<br />L. HAZARDS AND PROTRUDING OBJECTS
<br />1. Abrupt changes in level, except between a walk or sidewalk and an adjacent street or driveway, exceeding 4 inches in a vertical dimension, such as at planters or fountains located in or adjacent to walks, sidewalks, or other
<br />pedestrian ways, shall be identified by warning curbs projecting at least 6 inches in height above the walk or sidewalk surface to warn the blind of a potential drop off.
<br />2. When a guard or handrail is provided, no curb is required when a guide rail is provided centered 3 inches plus or minus 1 inch above the surface of the walk or sidewalk, the walk is 5 percent or less gradient or no adjacent hazard
<br />exists.
<br />3. Objects projecting from walls with their leading edges between 27 inches and 80 inches above the finished floor shall protrude no more than 4 inches into walks, halls, corridors, passageways, or aisles.
<br />4. Objects mounted with their leading edges at or below 27 inches above the finished floor may protrude any amount into walks, halls, corridors, passageways, or aisles.
<br />5. Freestanding objects mounted on posts or pylons may overhang 12inches maximum from 27 inches to 80 inches above the ground or finished floor.
<br />6. Protruding objects shall not reduce the clear width of an accessible route or maneuvering space.
<br />7. Walks, halls, corridors, passageways, aisles, or other circulation spaces shall have 80 inches minimum clear headroom.
<br />8. Any obstruction that overhangs a pedestrian way shall be a minimum of 80 inches above the walking surface as measured from the bottom of the obstruction.
<br />9. Where a guy support is used parallel to a path of travel, including, but not limited to sidewalks, a guy brace, sidewalk guy or similar device shall be used to prevent an overhanging obstruction as defined.
<br />10.If a walk crosses or adjoins a vehicular way, and the walking surfaces are not separated by curbs, railings, or other elements between the pedestrian areas and vehicular areas, the boundary between the areas shall be defined by a
<br />continuous detectable warning which is 36 inches wide.
<br />M. STAIRWAYS
<br />Stair is defined as a change in elevation, consisting of one or more risers.
<br />1. Stairways shall have handrails on each side.
<br />2. The top of handrail gripping surface shall be mounted 34 to 38 inches above the nosing of the treads.
<br />3. Handrails shall extend a minimum of 12 inches beyond the top nosing and 12 inches plus the tread width beyond the bottom nosing. At the top, the extension shall be parallel with the floor or ground surface. At the bottom, the
<br />handrail shall continue to slope for a distance of the width of one tread from the bottom riser; the remainder of the extension shall be horizontal.
<br />4. Ends shall be returned smoothly to floor, wall or post.
<br />5. The handgrip portion of handrails shall be not less than 1-1/4 inches or more than 1-1/2 inches in cross- sectional nominal dimension or the shape shall provide an equivalent gripping surface. The handgrip portion of handrails shall
<br />have a smooth surface with no sharp corners. Gripping surfaces (top or sides) shall be uninterrupted by newel posts, other construction elements, or obstructions. Any wall or other surface adjacent to the handrail shall be free of sharp
<br />or abrasive elements. Edges shall have a minimum radius of 1/8 inch.
<br />6. The orientation of at least one handrail shall be in the direction of the run of the stair and perpendicular to the direction of the stair nosing, and shall not reduce the minimum required width of stairs.
<br />7. Handrails projecting from a wall shall have a space of 1-1/2 inches between the wall and the handrail. Handrails may be located in a recess if the recess is a maximum of 3 inch deep and extends at least 18 inches above the top of
<br />the rail. Handrails shall not rotate in their fittings.
<br />8. Interior stairs shall have the upper approach and lower tread marked by a stripe providing clear visual contrast. Exterior stairs shall have the upper approach and all treads marked by a stripe providing clear visual contrast. The
<br />stripe shall be a minimum of 2 inches wide to a maximum of 4 inches wide placed parallel to, and not more than 1 inch from, the nose of the step or upper approach. The stripe shall extend the full width of the step or upper approach
<br />and shall be of material that is at least as slip resistant as the other treads of the stair. A painted stripe shall be acceptable.
<br />9. Stair treads shall be no less than 11 inches deep, measured from riser to riser. Stair riser heights shall be 7 inches maximum and 4 inches minimum. On any given flight of stairs, all steps shall have uniform riser height and uniform
<br />tread widths.
<br />10.All tread surfaces shall be slip-resistant. Weather exposed stairs and their approaches shall be designed so that water will not accumulate on the walking surfaces. Treads shall have smooth, rounded, or beveled exposed edges.
<br />11.Risers shall be solid and shall be vertical or sloped from the underside of the leading edge of the tread above at an angle not more than 30 degrees from the vertical. Open risers are not permitted.
<br />12.The radius of curvature at the leading edge (nosing) of the tread shall be no greater than ½ inch. Beveling of nosings shall not exceed ½ inch. Nosings shall not project more than 1-1/4 inches past the face of the riser below. Nosings
<br />that project beyond risers shall have the underside of the leading edge beveled at an angle not more than 30 degrees from the vertical. The transition from the nosing to the riser shall be free of abrupt edges. All projections shall be of
<br />uniform size, including nosings at landings.
<br />13.Tactile floor identification signs shall be located at each floor level landing in all enclosed stairways in buildings two or more stories in height to identify the floor level. At exit discharge level, the sign shall include a raised five- pointed
<br />star located to the left of the identifying floor level. The outside diameter of the star shall be the same as the height of the raised characters.
<br />14. Provide guardrail barrer below the stair where vertical vertical is less than 80 inches high. The leading edge of guardrail or barrier shall be 27" maximum above finish floor. Refer to detail 2/-.
<br />N. CONTROLS & OPERATING MECHANISMS
<br />1. Controls and operating mechanisms in accessible spaces, along accessible routes or as part of accessible elements and those in Section 1.9.1 are required to be accessible.
<br />2. Clear floor space complying with Section 1118B.4 that allows a forward or parallel approach by a person using a wheelchair shall be provided at controls, dispensers, receptacles, and other operable equipment.
<br />3. The highest and lowest operable part of all controls, dispensers, receptacles, and other operable equipment shall be placed within one of the reach ranges specified in Sections 11B-205
<br />4. Controls and operating mechanisms shall be operable with one hand and shall not require tight grasping, punching, or twisting of the wrist. The force required to activate controls shall be no greater than 5 pounds.
<br />5. For accessible lavatories, faucet controls and operating mechanisms shall be operable with one hand and shall not require grasping, pinching, or twisting of the wrist. The force required to active faucet controls and operating
<br />mechanisms shall be no greater than 5 lbf. Lever-operated, push-type, and electronically controlled mechanisms are examples of acceptable designs. Self-closing valves are allowed if the faucet remains open for at least 10 seconds.
<br />O. SPACE ALLOWANCE & REACH RANGES
<br />1. The minimum clear floor or ground space required to accommodate a single, stationary wheelchair and occupant is 30 inches by 48 inches. The minimum clear floor or ground space for wheelchairs may be positioned for forward or
<br />parallel approach to an object. Clear floor or ground space for wheelchairs may be a part of the knee space required under some objects.
<br />2. One full-unobstructed side of the clear floor or ground space for a wheelchair shall adjoin or overlap an accessible route or adjoin another wheelchair clear floor space. If a clear floor or ground space is located in an alcove or
<br />otherwise confined on all or part of three sides, additional maneuvering clearances shall be provided.
<br />3. The space required for a wheelchair to make a 180-degree turn is a clear space of 60 inches diameter or a T-shaped space.
<br />4. The minimum clear width required for a wheelchair to turn around an obstruction shall be 36 inches minimum where the obstruction is 48 inches or more in length; 42 inches minimum where the obstruction is less than 48 inches in
<br />length.
<br />5. The minimum clear width for single wheelchair passage shall be 32 inches at a point and 36 inches continuously.
<br />6. The minimum width for two wheelchairs to pass is 60 inches.
<br />7. If the clear floor space only allows forward approach to an object, the maximum high forward reach allowed shall be 48 inches. The minimum low forward reach is 15 inches.
<br />8. If the clear floor space allows parallel approach by a person in a wheelchair, the maximum high side reach allowed shall be 54 inches and the low side reach shall be no less than 9 inches above the floor
<br />Q. FIXED OR BUILT-IN SEATING, TABLES & COUNTERS
<br />1. Where fixed or built-in seating, tables, or counters are provided in accessible public use or common use areas, five percent but never less than one must be accessible.
<br />2. If seating spaces for persons in wheelchairs are provided at fixed tables or counters, clear floor space shall be provided. Such clear floor space shall not overlap knee space by more than 19 inches.
<br />3. If seating for persons in wheelchairs is provided at fixed tables or counters, knee spaces at least 27 inches high, 30 inches wide, and 19 inches deep shall be provided.
<br />4. The tops of tables and counters shall be 28 inches to 34 inches from the floor or ground.
<br />5. Where a single counter contains more than one transaction station, such as a bank counter with multiple teller windows or a retail sales counter with multiple cash register stations, at least 5 percent, but never less than one of each
<br />type of station shall be located at a section of counter that is at least 36 inches long and no more than 28 to 34 inches high.
<br />R. SIGNS & IDENTIFICATION
<br />California’s standards for signage are more stringent than Section 4.30 of the ADA Standards for Accessible Design.
<br />(1117B.5)
<br />The International Symbol of Accessibility shall be the standard used to identify facilities that are accessible to and usable by physically disabled persons as set forth in Title 24 and as specifically required in this Section.
<br />(1117B.5.8.1, Fig 11B-6)
<br />1. The International Symbol of Accessibility shall consist of a white figure on a blue background.
<br />2. All building and facility entrances that are accessible to and usable by persons with disabilities and at every major junction along or leading to an accessible route of travel shall be identified with a sign displaying the International
<br />Symbol of Accessibility and with additional directional signs to be visible to persons along approaching circulation paths.
<br />3. Where permanent identification signs are provided for rooms and spaces of a building or site, raised characters shall be provided and shall be accompanied by Braille. Signs shall be installed on the wall adjacent to the latch outside
<br />of the door. Where there is no wall space on the latch side, including at double leaf doors, signs shall be placed on the nearest adjacent wall, preferably on the right. Mounting height shall be 60 inches above the finished floor to the
<br />centerline of the sign. Mounting location shall be determined so that a person may approach within 3inches of signage without encountering protruding objects or standing within the swing of a door.
<br />S. ELECTRICAL
<br />1. The highest operable part of all controls, dispensers, receptacles and other operable equipment shall be installed at an accessible location meeting the clearances and reach range requirements
<br />2. Controls and switches intended to be used by the occupant of the room or area to control lighting and receptacle outlets, appliances, or cooling, heating, and ventilating equipment, shall be located no more than 48 inches measured
<br />from the top of the outlet box nor less than 15 inches measured from the bottom of the outlet box to the level of the finish floor or working platform.
<br />3. Electrical receptacle outlets on branch circuits of 30 amperes or less and communication system receptacles shall be located no more than 48 inches measured from the top of the receptacle outlet box or receptacle housing nor less
<br />than 15 inches measured from the bottom of the receptacle outlet box or receptacle housing to the level of the finish floor or working platform
<br />T. NOTIFICATION APPLIANCES FOR THE HEARING IMPAIRED
<br />NOTE: If emergency warning systems are provided, they shall include both audible alarms and visual alarms complying with NFPA 72
<br />1. Approved notification appliances for the hearing and visually impaired shall be installed in accordance with the provisions of NFPA 72 in the following areas:
<br />a) Restrooms
<br />b) Corridors
<br />c) Music practice rooms
<br />d) Band rooms
<br />e) Gymnasiums
<br />f) Multipurpose rooms
<br />g) Occupational shops
<br />h) Occupied rooms where ambient noise impairs hearing of the fire alarm
<br />i) Lobbies
<br />j) Meeting rooms
<br />k) Any other area for common use
<br />I
<br />REDUCED VERTICAL CLEARANCE
<br />SCALE : 1/2" = 1'-0"
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<br />© Gensler
<br />Date Description
<br />Project Name
<br />Project Number
<br />Description
<br />Scale
<br />Seal / Signature
<br />2021
<br />Tel 949.863.9434
<br />Fax 949-553-1676
<br />4675 MacArthur Court
<br />Suite 100
<br />Newport Beach, CA
<br />92600
<br />USA
<br />As indicated
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<br />DISABLED ACCESS NOTES
<br />07.3757.400
<br />3rd & Broadway Residential
<br />Tower Core & Shell
<br />301 N. Broadway, Santa Ana, CA
<br />SCALE:1 1/2" = 1'-0"
<br />ACCESIBILITY NOTES SITE - CONT.11
<br />B 01/18/2022 Reissue for Plan Check
<br />H 06/17/2024 Revision to Permit
<br />I 09/20/2024 Reissue for Plan Check
<br />SCALE:1/2" = 1'-0"
<br />GUARDRAIL DETAIL @ VERTICAL CLEARANCE2I
<br />1/7/25
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