Transcript Enhancing Access to Greenhouse Facilities in Compliance with ADA Guidelines Kent McGuire, Ohio AgrAbility Program Coordinator Lisa M.

Enhancing Access to Greenhouse
Facilities in Compliance with ADA
Guidelines
Kent McGuire, Ohio AgrAbility Program Coordinator
Lisa M. Johnson, PhD Student
The Ohio State University
Department of Food, Agricultural, and Biological Engineering
Agenda
•
•
•
•
•
Introduction
Safety Emphasis
Areas of Focus
Raised beds / Tables / Benches
Conclusion
Introduction
70% of greenhouse space is
dedicated to what is being grown
• Leaves very little space to work
• May not accommodate individuals
with a disability
Applying ADA guidelines can
• Create independent use
• Improve the accessibility
• Provide egress in an emergency
• Reduce injuries
Introduction to the Americans with
Disabilities Act
• Titles of the ADA
– Title I – Employment
– Title II – Public Services (and public transportation)
– Title III – Public Accommodations (and Commercial
Facilities)
– Title IV – Telecommunications
– Title V – Miscellaneous
Safety Emphasis
•
•
•
•
Reduce Falls
Reduce overexertion injuries
Maintain proper posture
Minimize over-extending from
reaching
• Reduce contact with objects and
equipment
• Provide means of egress for
everyone
Added benefit
• Increase productivity for individuals
with limitations
Areas of Focus
–
–
–
–
–
–
–
–
Floor and Ground Surfaces
Changes in Surface Levels
Ramps
Handrails
Turning Space
Clearances
Doors, Doorways and Gates
Reach Ranges
Floor and Ground Surfaces
• Floor and ground surfaces
shall be stable, firm, and slip
resistant.
• Openings in the floor or
ground surfaces shall not be
larger than ½ inch diameter.
• Consider the dominant
direction of travel when
preparing or maintaining
stable / firm surfaces.
• Consider drainage and
watering processes to prevent
wet surfaces
Changes in Level
• Changes in level of ¼
inch high maximum shall
be permitted.
• Changes in level between
¼ inch high minimum and
½ inch high maximum
shall be beveled with a
slope not steeper than
1:2.
• Changes in level greater
than ½ inch high shall be
ramped. 1:12 slope
Not in Compliance
Ramps

Ramp runs shall have a running slope not steeper than 1:12.

The rise for any ramp shall be thirty inches maximum.

Ramps shall have landings at the top and the bottom of each
ramp run.

The landing width shall be at least as wide as the widest ramp
run.

The landing clear length shall be 60 inches long minimum.

Ramp runs with a rise greater than six inches shall have
handrails.
Handrails
• Top of gripping surfaces shall
be between 34” and 38”
above the finished floor.
• Clearances between the
handrail and adjacent
surfaces shall be at least
1.5”.
• Handrail gripping surfaces
shall be continuous.
• Handrails shall not rotate.
Turning Space
• The turning space shall
be a space of sixty
inches diameter
minimum. The space
shall be permitted to
include knee and toe
clearance.
Turning Space

The turning space shall be a T-shaped space within a
60” square minimum with arms and base of 36” width,
minimum.
 Each arm of the T =12” minimum in each direction
 Single direction = 24” minimum.
 Includes knee and toe clearance.
Clearances
200’ max
• The clear width of the walking surface shall be
36” minimum.
• An accessible route with a clear width less
than 60” shall provide passing spaces at
intervals of 200 feet maximum.
Doors, Doorways and Gates
• Door openings shall provide a clear width of
32” minimum.
• Maneuvering clearances shall extend the full
width of the doorway.
• Swinging doors and gates shall have
maneuvering clearances.
• Door closers and gate closers shall be
adjusted so that from the open position of
90°, the time required to move the door to a
position of 12° from the latch is 5 seconds
minimum.
Reach Ranges
• When a parallel approach to an
element and the high side reach
is over an obstruction, the
height of the obstruction shall
be 34” max and the depth of
the obstruction shall be 24”
max.
• The high side reach shall be
54” max for a reach depth of
10” max.
• When reach depth exceeds 10”,
the high side reach shall be 46”
max for a reach depth of 24”
maximum.
Reach Ranges
• Where a forward reach is
unobstructed, the high forward
reach shall be 48” max and the
low forward reach shall be 15”
min above the finished floor.
• Where a high forward reach is
over an obstruction, the high
forward reach shall be 48” max
where the reach depth is 20” max.
• Where the reach depth exceeds
20” the high forward reach shall
be 44” max and the reach depth
shall be 25” max.
Raised Beds
• Types of Raised Beds
– Raised ground beds
– Deep raised beds
– Elevated beds
Raised Ground Beds
•
•
•
•
Height – ½ to 1 foot
Width (one side) – 2 feet
Width (two sides) – 4 feet
Diameter (circular) – 4 feet
Deep Raised Beds
•
•
•
•
Height – 2 to 2 ½ ft
Width (one side) – 2 ft
Width (two sides) – 3 to 4 ft
Diameter (circular) – 3 to 4 ft
Elevated Beds
•
•
•
•
Height – 2 ½ to 3 feet
Width (one side) – 2 feet
Width (two sides) – 4 feet
Diameter (circular) – 4 feet
Elevated Tables
•
•
•
•
•
Height – 2 ½ to 3 feet
Width (one side) – 2 feet
Width (two sides) – 4 feet
Diameter (circular) – 4 feet
Multiple heights
Table / Bench options
• Tier benching
• Pyramid benching
• Use of multiple heights
Conclusion
Utilizing ADA guidelines in Greenhouses can
• Create independent use
• Improve the accessibility
• Provide egress in an emergency
• Reduce injuries
• Increase productivity
Questions?
Kent McGuire
The Ohio State University
Dept. Of Food, Agriculture & Biological Engineering
590 Woody Hayes Drive
Columbus, Ohio 43210-1057
Email: [email protected]
Phone: 614-292-0588
Fax: 614-292-9448
Thank You
• References:
–
–
–
–
–
–
Americans with Disabilities Act. 1990. Americans with Disabilities Act (ADA) of 1990, as
amended: 2008. United States Access Board, Washington, D.C.: Available at
http://www.access-board.gov/about/laws/ada.htm. Accessed 4 June, 2012.
Americans With Disabilities Act. 2010. 2010 ADA Standards for Accessible Design, Section
35.151 of 28 CFR Part 35 (2010).
Bureau of Labor Statistics. 2007. Fatal Occupational Injuries by Industry and Event or
Exposure; All United States, 2007. Available at http://www.bls.gov/iif/oshcfoi1.htm#2007.
Accessed 15 October, 2011.
Blume, J. 2001. Ortho’s All About Greenhouses.Meredith Books, Des Moines. Iowa.
Department of Justice. 2012. Revised ADA Regulations Implementing Title II and Title III.
Available at http://www.ada.gov/regs2010/ADAregs2010.htm. Accessed 14 June 2012.