Heavy

ZIP Code 57470

Hand County, South Dakota — Rockham

50PSF (Ground Snow Load)
HeavyClassification

What This Means

Hand County, South Dakota has a heavy ground snow load of 50 PSF per ASCE 7-22. This is a significant structural load. Roofs must be specifically engineered for this snow load. Consider snow guards, proper insulation to prevent ice dams, and roof designs that shed snow effectively.

Snow Load Details

ZIP Code57470
CountyHand
CityRockham
StateSouth Dakota (SD)
Ground Snow Load50 PSF — Heavy
Classification Range41 - 60 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): 50 PSF

Roof Snow Load: 35 PSF

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

Hand 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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Nearby ZIP Codes

57467 50 PSF Heavy 57468 50 PSF Heavy 57469 50 PSF Heavy 57471 50 PSF Heavy 57472 50 PSF Heavy 57473 50 PSF Heavy

Frequently Asked Questions

What is the ground snow load for ZIP code 57470?

ZIP code 57470 is in Hand County, South Dakota, with a ground snow load of 50 PSF, classified as heavy per ASCE 7-22.

Is my roof strong enough for snow in 57470?

With a heavy ground snow load of 50 PSF, your roof must be specifically engineered for this load. Consult a structural engineer if building or renovating.

What county is ZIP code 57470 in?

ZIP code 57470 is in Hand County, South Dakota (SD).