Book 1 - City of St. Petersburg

BASIS OF DESIGN BOOK 1
3 GENERAL PLANNING CRITERIA
FIRE AND LIFE SAFETY
REQUIREMENTS
(continued)
Fire Department Access and Facilities
To enable effective fire-fighting operations on the Pier, access for
fire appliances will be made along the length of the 20-ft section
of the Overwater Drive all the way to the end of the Promontory
where a vehicle ‘turning circle’ will be provided. Because the
Pier is part of a fire apparatus access road, it will be constructed
and maintained in accordance with AASHTO regulations and
designed for the imposed loads created by a fire appliance of up
to 50,000 lbs.
While there will be no defined Fire Department access path on
the Pier, the entire 20-ft wide portion of the Overwater Drive
will be designed for fire vehicle access. When responding to a
fire incident on the Pier, a management vehicle (a small car or
golf buggy type vehicle) will take the lead to ‘part the crowd’
and make way for the fire vehicle. Given the close interaction
of vehicles and occupants in this scenario, an emergency
management procedure designed to cater for such situations
will be developed. It is to be noted that a large portion of the
Pier’s evacuation is expected to be completed before the arrival
of the Fire Department. As a consequence, the need for fire
vehicle access would occur only towards the end of the occupant
evacuation phase and the extent of fire vehicle/occupant
interaction would be greatly reduced. Water supplies for firefighting
will be provided by the use of a standpipe system with
outlets provided every 300 ft along the Pier. A wet system will be
provided at the Marina.
Fire Protection Systems
Source of Water
Water will be provided by an estimated 6” fire service (one for
the Welcome Mat and Hub and one for the Pier) supplied from
the city water main. Backflow prevention devices will be installed
in accordance with the St. Petersburg water and sewer rules and
regulations.
An electric fire pump may be provided to supply the
required 100 psi at the highest and most remote standpipe
hose connection. The fire pump system will be designed in
accordance with NFPA 20 and include a pressure maintenance
pump, control panels and test connection. The fire pump will be
located in a dedicated room outside the flood line.
The site will be provided with Siamese (fire department)
connections. The Siamese connection will serve both the
automatic sprinkler system and the fire standpipe system.
Sprinkler System
All enclosed buildings will be sprinklered with the exception of
the main electrical room. Sprinklers will be designed based on
the occupancy hazard of the design areas.
All pipe sizes will be based on hydraulic calculations.
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THE NEW ST. PETERSBURG PIER