ZIP Code 08520
Mercer County, New Jersey — Hightstown
What This Means
Mercer County, New Jersey 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 | 08520 |
| County | Mercer |
| City | Hightstown |
| State | New Jersey (NJ) |
| 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.
Mercer 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 08520?
ZIP code 08520 is in Mercer County, New Jersey, with a ground snow load of 25 PSF, classified as moderate per ASCE 7-22.
Is my roof strong enough for snow in 08520?
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 08520 in?
ZIP code 08520 is in Mercer County, New Jersey (NJ).