Helpful Links for Determining Minimum Design Loads

Hopefully these links can save you some time and help get you more accurate design loads. A quick heads-up – you will usually need to search the town/county/state to see if the Authority Having Jurisdiction (AHJ) has a specific requirement.

Wind Load

A favorite for Wind Loads in accordance w/ ASCE 7

http://www.atcouncil.org/windspeed/index.php

Seismic

A favorite for determining your ‘base acceleration’ coefficients:

http://earthquake.usgs.gov/hazards/designmaps/

Snow

This site is no longer free but when I used it, it was useful:

http://www.groundsnowbyzip.com/

This is a little dated and really not that useful but I’ll mention it anyway:

http://www.fs.fed.us/t-d/snow_load/states.htm

Others

This is a ‘pay-for’ site but some may use it:

http://www.groundsnowbyzip.com/