LBDS
333 West Ocean Blvd.
Long Beach CA 90802
Phone: (562) 570-LBDS (5237)
Fax: (562) 570-6753
Structural Design Questions
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1. What is the basic wind speed, in mph, used for the determination of the wind loads in the City of Long Beach?

Wind Design Parameters Information Bulletin BU-021.

2. What is the exposure category that reflects the general characteristics of ground surface irregularities in the City of Long Beach?

The surface roughness and exposure category for buildings and structures not within the proximity of the Pacific Ocean shoreline is B. Those within the proximity of the Pacific Ocean shoreline is D. For more information on what is considered to be within or not within the proximity of the Pacific Ocean shoreline, please refer to Information Bulletin BU-021 Wind Design Parameters.


3. Are there any special wind regions in the City of Long Beach that I need to consider in my design?

There are no special wind regions in the City of Long Beach that you need to consider in your design.

4. What is the minimum design flood elevation of lowest floor in the City of Long Beach located in flood zone?

The minimum design flood elevation of lowest floor is 7 ft for Structure Category II (including majority of residential and commercial projects) & III; and 8 ft for Structure Category IV based on ASCE 24-05 Table 2-1.

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