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CalcsConnect returns environmental design loads for a set of coordinates, so your product does not need its own hazard lookup. Coverage differs by region and by data type. A request for data that does not exist for a location returns an error rather than an estimate.

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Coverage by region

The country is detected from the coordinates you send. You can override that detection with a country code when you need to.

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What each data type returns

  • Wind. Wind speed design values. US locations return a value per risk category, I through IV. Other regions return a base wind speed.
  • Tornado. Tornado wind speed design values. United States only, under ASCE 7-22, for risk categories III and IV.
  • Snow. Ground snow load design values. ASCE 7-22 returns a value per risk category. ASCE 7-16 returns a single ground snow load.
  • Seismic. Mapped values (Ss, S1), site-modified values (Sms, Sm1), design values (Sds, Sd1), long-period transition period (TL), and seismic design category. Risk category and site class are both parameters.
A single call can return every applicable load for a location at once, with elevation and terrain roughness as options.

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Handling gaps

Not every location has every data type. Design your integration to treat a gap as a valid answer rather than a failure.
  • Snow and tornado requests return 404 where the data is not available for that location.
  • Seismic requests return 400 for locations outside the United States.
  • The combined endpoint returns the load types it can, sets the rest to null, and reports what was missing in its warnings.
Falling back to a user-entered value keeps the calculation moving when a lookup comes back empty. Endpoints, parameters, and response schemas are documented under GIS environmental loads on the Calcs.com developer portal.