Heavy

ZIP Code 01469

Middlesex County, Massachusetts — Townsend

60PSF (Ground Snow Load)
HeavyClassification

What This Means

Middlesex County, Massachusetts 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 Code01469
CountyMiddlesex
CityTownsend
StateMassachusetts (MA)
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.

Middlesex 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

01466 50 PSF Heavy 01467 50 PSF Heavy 01468 50 PSF Heavy 01470 50 PSF Heavy 01471 50 PSF Heavy 01472 50 PSF Heavy

Frequently Asked Questions

What is the ground snow load for ZIP code 01469?

ZIP code 01469 is in Middlesex County, Massachusetts, with a ground snow load of 60 PSF, classified as heavy per ASCE 7-22.

Is my roof strong enough for snow in 01469?

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 01469 in?

ZIP code 01469 is in Middlesex County, Massachusetts (MA).