ZIP Code 57601
Dewey County, South Dakota — Mobridge
What This Means
Dewey 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 Code | 57601 |
| County | Dewey |
| City | Mobridge |
| State | South Dakota (SD) |
| Ground Snow Load | 50 PSF — Heavy |
| Classification Range | 41 - 60 PSF |
| Data Quality | Measured |
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
ⓘ Simplified estimate for flat roofs. Sloped roofs, drift zones, and unbalanced loads need additional calculations. Consult a structural engineer for final design.
Dewey 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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Frequently Asked Questions
What is the ground snow load for ZIP code 57601?
ZIP code 57601 is in Dewey 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 57601?
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 57601 in?
ZIP code 57601 is in Dewey County, South Dakota (SD).