ZIP Code 49801
Dickinson County, Michigan — Iron Mountain
What This Means
Dickinson County, Michigan 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 Code | 49801 |
| County | Dickinson |
| City | Iron Mountain |
| State | Michigan (MI) |
| Ground Snow Load | 60 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): 60 PSF
ⓘ Simplified estimate for flat roofs. Sloped roofs, drift zones, and unbalanced loads need additional calculations. Consult a structural engineer for final design.
Dickinson 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 49801?
ZIP code 49801 is in Dickinson County, Michigan, with a ground snow load of 60 PSF, classified as heavy per ASCE 7-22.
Is my roof strong enough for snow in 49801?
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 49801 in?
ZIP code 49801 is in Dickinson County, Michigan (MI).