ZIP Code 60081
McHenry County, Illinois — Spring Grove
What This Means
McHenry County, Illinois 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 Code | 60081 |
| County | McHenry |
| City | Spring Grove |
| State | Illinois (IL) |
| Ground Snow Load | 25 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): 25 PSF
ⓘ Simplified estimate for flat roofs. Sloped roofs, drift zones, and unbalanced loads need additional calculations. Consult a structural engineer for final design.
McHenry County Snow Load Map
Counties colored by snow load classification. Gray = No Load, Blue = Light, Amber = Moderate, Orange = Heavy, Red = Extreme, Purple = Case Study.
Check Another ZIP Code
Nearby ZIP Codes
Frequently Asked Questions
What is the ground snow load for ZIP code 60081?
ZIP code 60081 is in McHenry County, Illinois, with a ground snow load of 25 PSF, classified as moderate per ASCE 7-22.
Is my roof strong enough for snow in 60081?
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 60081 in?
ZIP code 60081 is in McHenry County, Illinois (IL).