Extreme

ZIP Code 04413

Washington County, Maine — Brookton

90PSF (Ground Snow Load)
ExtremeClassification

What This Means

Washington County, Maine has an extreme ground snow load of 90 PSF per ASCE 7-22. This requires robust structural engineering with heavy-duty framing. Snow removal plans, snow guards, and reinforced roof systems are essential. Consult a licensed structural engineer for any construction.

Snow Load Details

ZIP Code04413
CountyWashington
CityBrookton
StateMaine (ME)
Ground Snow Load90 PSF — Extreme
Classification Range61+ 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): 90 PSF

Roof Snow Load: 63 PSF

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

Washington 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

04410 90 PSF Extreme 04411 70 PSF Extreme 04412 70 PSF Extreme 04414 CS Case Study 04415 CS Case Study 04416 70 PSF Extreme

Frequently Asked Questions

What is the ground snow load for ZIP code 04413?

ZIP code 04413 is in Washington County, Maine, with a ground snow load of 90 PSF, classified as extreme per ASCE 7-22.

Is my roof strong enough for snow in 04413?

With a extreme ground snow load of 90 PSF, your roof must be specifically engineered for this load. Consult a structural engineer if building or renovating.

What county is ZIP code 04413 in?

ZIP code 04413 is in Washington County, Maine (ME).