Moderate

ZIP Code 57717

Butte County, South Dakota — Belle Fourche

30PSF (Ground Snow Load)
ModerateClassification

What This Means

Butte County, South Dakota has a moderate ground snow load of 30 PSF per ASCE 7-22. This load requires proper structural consideration during design. Roof framing, trusses, and connections should be engineered for this snow load. Ensure adequate drainage to prevent ponding.

Snow Load Details

ZIP Code57717
CountyButte
CityBelle Fourche
StateSouth Dakota (SD)
Ground Snow Load30 PSF — Moderate
Classification Range21 - 40 PSF
Data QualityMeasured

Source: ASCE 7-22 ground snow load polygons via ArcGIS

Roof Snow Load Calculator

ASCE 7-22 flat roof formula:  pf = 0.7 × Ce × Ct × Is × pg

Your ground snow load (pg): 30 PSF

Roof Snow Load: 21 PSF

ⓘ Simplified estimate for flat roofs. Sloped roofs, drift zones, and unbalanced loads need additional calculations. Consult a structural engineer for final design.

Butte County Snow Load Map

Counties colored by snow load classification. Gray = No Load, Blue = Light, Amber = Moderate, Orange = Heavy, Red = Extreme, Purple = Case Study.

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57714 25 PSF Moderate 57715 15 PSF Light 57716 20 PSF Light 57718 20 PSF Light 57719 25 PSF Moderate 57720 35 PSF Moderate

Frequently Asked Questions

What is the ground snow load for ZIP code 57717?

ZIP code 57717 is in Butte County, South Dakota, with a ground snow load of 30 PSF, classified as moderate per ASCE 7-22.

Is my roof strong enough for snow in 57717?

With a moderate ground snow load of 30 PSF, standard residential construction typically handles this load, but verify with your local building code.

What county is ZIP code 57717 in?

ZIP code 57717 is in Butte County, South Dakota (SD).