ZIP Code 52101
Winneshiek County, Iowa — Decorah
What This Means
Winneshiek County, Iowa has a moderate ground snow load of 35 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 Code | 52101 |
| County | Winneshiek |
| City | Decorah |
| State | Iowa (IA) |
| Ground Snow Load | 35 PSF — Moderate |
| Classification Range | 21 - 40 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): 35 PSF
ⓘ Simplified estimate for flat roofs. Sloped roofs, drift zones, and unbalanced loads need additional calculations. Consult a structural engineer for final design.
Winneshiek 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 52101?
ZIP code 52101 is in Winneshiek County, Iowa, with a ground snow load of 35 PSF, classified as moderate per ASCE 7-22.
Is my roof strong enough for snow in 52101?
With a moderate ground snow load of 35 PSF, standard residential construction typically handles this load, but verify with your local building code.
What county is ZIP code 52101 in?
ZIP code 52101 is in Winneshiek County, Iowa (IA).