Enhancing%20Access%20to%20Greenhouse%20Facilities%20in%20Compliance%20with%20ADA%20Guidelines

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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
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Agenda

• Introduction
• Safety Emphasis
• Areas of Focus
• Raised beds / Tables / Benches
• Conclusion

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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

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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

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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

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Areas of Focus

• Floor and Ground Surfaces
• Changes in Surface Levels
• Ramps
• Handrails
• Turning Space
• Clearances
• Doors, Doorways and Gates
• Reach Ranges

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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

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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 12.
• Changes in level greater than ½ inch high shall
  be ramped. 112 slope

Not in Compliance
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Ramps

• Ramp runs shall have a running slope not steeper
  than 112.
• 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.

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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.

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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.

12
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.

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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.

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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.

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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.

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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.

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Raised Beds

• Types of Raised Beds
• Raised ground beds
• Deep raised beds
• Elevated beds

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Raised Ground Beds

• Height ½ to 1 foot
• Width (one side) 2 feet
• Width (two sides) 4 feet
• Diameter (circular) 4 feet

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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

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Elevated Beds

• Height 2 ½ to 3 feet
• Width (one side) 2 feet
• Width (two sides) 4 feet
• Diameter (circular) 4 feet

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Elevated Tables

• Height 2 ½ to 3 feet
• Width (one side) 2 feet
• Width (two sides) 4 feet
• Diameter (circular) 4 feet
• Multiple heights

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Table / Bench options

• Tier benching
• Pyramid benching
• Use of multiple heights

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Conclusion

• Utilizing ADA guidelines in Greenhouses can
• Create independent use
• Improve the accessibility
• Provide egress in an emergency
• Reduce injuries
• Increase productivity

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Questions?

• Kent McGuire
• The Ohio State University
• Dept. Of Food, Agriculture Biological
  Engineering
• 590 Woody Hayes Drive
• Columbus, Ohio 43210-1057
• Email mcguire.225_at_osu.edu
• Phone [phone]
• Fax [phone]

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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/abo
  ut/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.htm2007.
  Accessed 15 October, 2011.
• Blume, J. 2001. Orthos 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/ADAregs20
  10.htm. Accessed 14 June 2012.