Heavy

ZIP Code 58201

Grand Forks County, North Dakota — Grand Forks

60PSF (Ground Snow Load)
HeavyClassification

What This Means

Grand Forks County, North Dakota has a heavy ground snow load of 60 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 Code58201
CountyGrand Forks
CityGrand Forks
StateNorth Dakota (ND)
Ground Snow Load60 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): 60 PSF

Roof Snow Load: 42 PSF

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

Grand Forks 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

58202 60 PSF Heavy 58203 60 PSF Heavy 58204 60 PSF Heavy

Frequently Asked Questions

What is the ground snow load for ZIP code 58201?

ZIP code 58201 is in Grand Forks County, North Dakota, with a ground snow load of 60 PSF, classified as heavy per ASCE 7-22.

Is my roof strong enough for snow in 58201?

With a heavy ground snow load of 60 PSF, your roof must be specifically engineered for this load. Consult a structural engineer if building or renovating.

What county is ZIP code 58201 in?

ZIP code 58201 is in Grand Forks County, North Dakota (ND).