Growth Management Planning Division
New Wind Zone Maps |
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If you have any questions about the maps Please contact Mike Ruzowski at mruzowski@co.okaloosa.fl.us or
(850) 651-7523 M-F 8-5.
Background information
Wind speed lines have changed because of the improved
science (i.e. computer simulations).
The updated maps are based on a new and more
complete analysis of hurricane characteristics performed
over the past 10 years.
The wind speed indicated for each wind speed line is
different for the 2010 standard due to change in wind
speed calculation philosophy.
The wind borne debris was changed from opening
protection required for currently for 120 mph and higher
wind speeds under current code to opening protection
required for 110 mph equivalent current code wind
speed (140 mph 2010 wind speeds) and higher wind
speeds for the 2010 standard.
2010 Florida Building Code Wind Standard
ASCE 7-10 Wind Loads
ASCE Wind Map by Peter Vickery
The new ASCE 7-10 Wind speeds are provided in 3-second peak gust speeds and now require three (3) Risk Category maps.
They are as follows:
OCCUPANCY CATEGORY I view map
NATURE OF OCCUPANCY
Buildings and other structures that represent a low hazard to human life in the event of failure, including but not limited to:
Agricultural facilities.
Certain temporary facilities.
Minor storage facilities.
OCCUPANCY CATEGORY II view map (NOTE: this map will be the one most used for buildings being built)
NATURE OF OCCUPANCY
Buildings and other structures except those listed in Occupancy Categories I, III and IV
OCCUPANCY CATEGORY III view map
NATURE OF OCCUPANCY
Buildings and other structures that represent a substantial hazard to human life in the event of failure, including but not limited to:
Buildings and other structures whose primary occupancy is public assembly with an occupant load greater than 300.
Buildings and other structures containing elementary school, secondary school or day care facilities with an occupant load greater than 250.
Buildings and other structures containing adult education facilities, such as colleges and universities, with an occupant load greater than 500.
Group I-2 occupancies with an occupant load of 50 or more resident patients but not having surgery or emergency treatment facilities.
Group I-3 occupancies.
Any other occupancy with an occupant load greater than 5,000a.
Power-generating stations, water treatment facilities for potable water, waste water treatment facilities and other public utility facilities not included in Occupancy Category IV
Buildings and other structures not included in Occupancy Category IV containing sufficient quantities of toxic or explosive substances to be dangerous
to the public if released.
OCCUPANCY CATEGORY IV view map
NATURE OF OCCUPANCY
Buildings and other structures designated as essential facilities, including but not limited to:
Group I-2 occupancies having surgery or emergency treatment facilities.
Fire, rescue, ambulance and police stations and emergency vehicle garages.
Designated earthquake, hurricane or other emergency shelters.
Designated emergency preparedness, communications and operations centers and other facilities required for emergency response.
Power-generating stations and other public utility facilities required as emergency backup facilities for Occupancy Category IV structures.
Structures containing highly toxic materials as defined by Section 307 where the quantity of the material exceeds the maximum allowable quantities of
Table 307.1(2).
Aviation control towers, air traffic control centers and emergency aircraft hangars.
Buildings and other structures having critical national defense functions.
Water storage facilities and pump structures required to maintain water pressure for fire suppression.
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Elliot Kampert, Director
1804 Lewis Turner Blvd, Suite 200
Fort Walton Beach, FL 32547
Phone: (850) 651-7180
Fax: (850) 651-7058
E-Mail
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