ZIP Code 99546
Aleutians West County, Alaska — Zcta 99546
What This Means
Aleutians West County, Alaska has a moderate ground snow load of 30 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 | 99546 |
| County | Aleutians West |
| City | Zcta 99546 |
| State | Alaska (AK) |
| Ground Snow Load | 30 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): 30 PSF
ⓘ Simplified estimate for flat roofs. Sloped roofs, drift zones, and unbalanced loads need additional calculations. Consult a structural engineer for final design.
Aleutians West 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 99546?
ZIP code 99546 is in Aleutians West County, Alaska, with a ground snow load of 30 PSF, classified as moderate per ASCE 7-22.
Is my roof strong enough for snow in 99546?
With a moderate ground snow load of 30 PSF, standard residential construction typically handles this load, but verify with your local building code.
What county is ZIP code 99546 in?
ZIP code 99546 is in Aleutians West County, Alaska (AK).