Moderate

ZIP Code 20611

Charles County, Maryland — Bel Alton

25PSF (Ground Snow Load)
ModerateClassification

What This Means

Charles County, Maryland has a moderate ground snow load of 25 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 Code20611
CountyCharles
CityBel Alton
StateMaryland (MD)
Ground Snow Load25 PSF — Moderate
Classification Range21 - 40 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): 25 PSF

Roof Snow Load: 17.5 PSF

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

Charles 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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20608 25 PSF Moderate 20609 20 PSF Light 20610 25 PSF Moderate 20612 25 PSF Moderate 20613 25 PSF Moderate

Frequently Asked Questions

What is the ground snow load for ZIP code 20611?

ZIP code 20611 is in Charles County, Maryland, with a ground snow load of 25 PSF, classified as moderate per ASCE 7-22.

Is my roof strong enough for snow in 20611?

With a moderate ground snow load of 25 PSF, standard residential construction typically handles this load, but verify with your local building code.

What county is ZIP code 20611 in?

ZIP code 20611 is in Charles County, Maryland (MD).