January 12, 2021

ASCE Tsunami Design Zone Maps for Selected Locations. American . Minimum Design Loads for Buildings and Other Structures (ANSI/ASCE ). Minimum Design Loads for Buildings and Other Structures, ANSI/ASCE , This standard, which replaces ASCE , features revised earthquake load. Guide to the Use of the Wind Load Provisions of ASCE (formerly ANSI A ). The objective of the Guide to the Use of the Wind Load Provisions of ASCE.

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Windspeeds are site-specific for the location provided and are found by interpolation of map contours to the nearest 1-mph.

ASCE 7 Windspeed

This site will be taken offline soon. Windspeeds are also provided for serviceability purposes for,and year nasi periods when using ASCE The material presented in the windspeed report should not be used or relied upon for any specific application snsi competent examination and verification of its accuracy, suitability and applicability by engineers or other licensed professionals.

Users of the information from this website assume all liability arising from such use.

The reason this utility is needed is that the spatial resolution of the windspeed maps that are displayed in ASCE 7 are not sufficient to determine a site specific windspeed. There are no reference city or town locations on the ASCE 7 windspeed maps and while anei boundaries are shown, the resolution is affected when the maps adce expanded large enough to distinguish the boundaries and approximate the city locations.


Without providing too much detail, the design windspeeds are different because the basis for wind design was service-level, fastest mile windspeeds in ASCEservice-level, 3-second gust windspeeds in ASCE and strength-level, 3-second gust windspeeds in ASCE It is assumed that the users of this site have competency to understand how to calculate and apply design qnsi loads to structural models of buildings or other structures. An underestimation of windspeed could result is a design that does not meet the requirements for minimum wind design loads for the building under consideration.

Guide to the Use of the Wind Load Provisions of ASCE (formerly ANSI A)

Please start using the new site at https: This site uses the now discontinued free Google geo data API which no longer works. Users are cautioned to be sure to use the correct windspeed associated with the edition of ASCE 7 being used in the design. Users are cautioned to provide the most accurate location for the building site by specifying either the known street address, city and state or the latitude and longitude to at least five 5 decimal places.


Click the radio button for decimal and then the coordinates auto-populate in the decimal location. ATC does not intend that the use of this information replace the sound judgment of such competent professionals, having experience and knowledge in the field of practice, nor to substitute for the standard of care required of such professionals in interpreting and applying the results of the windspeed report provided by this website.

While the information presented on this website is believed to be correct, ATC and its sponsors and contributors assume no responsibility or liability for its accuracy.

To find the windspeed for a specific site, select one of the following methods: