Grant County, NE Roof Snow Load - 20 psf
Grant County, NE: your roof's ASCE 7 snow number, in plain English
Grant County's roofs are built to hold 20 psf of snow, the ASCE 7-22 figure a permit reviewer checks first. §7.3.4's low-slope minimum of 20 psf is what actually governs on a flat or low-pitch roof here - higher than the 17.5 psf the base ground-load formula gives.
In depth, not weight: that's roughly 44 inches of fresh, light snow, 16 inches of old, settled snow, or as little as 4 inches of solid ice - snow that heavy is rare here but ice from a freeze-thaw cycle adds up far faster than the depth suggests. This is a meaningful design load - most modern-code homes handle it fine, though an addition, a carport or a flat-roofed section can be a weak spot.
Grant County, NE: quick facts
- Design roof snow load20 psf
- Ground snow load, ASCE 7 map25 psf
- National rank#1,301 of 2,758
- Nebraska rank#88 of 93
- Population573
- Annual snowfall, NOAA normal42.6 in.
- FIPS31075
Grant County by the numbers
Nationally that's #1,301 out of 2,758 rated counties, the top 47%; within Nebraska alone, Grant County ranks #88 of 93. Nebraska counties average 20.2 psf; Grant County runs 0.2 psf lower than that.
Grant County, FIPS 31075, is home to 573 people near 41.914°N 101.756°W. Its 25 psf ground snow load figure is the map value; 20 psf is what a roof is actually designed for.
Grant County's snowfall, most winters
42.6 in. a year: that's Grant County's NOAA 1991-2020 snowfall normal, measured at ELLSWORTH 2W, NE US (30.6 mi away). Worth noting: the nearest station reporting snowfall normals sits 30.6 mi from Grant County's center, so treat this as a regional figure rather than an exact one. See the density guide.
Before you rely on Grant County's number
Treat the Grant County figure as a starting point, not a final answer: it assumes standard occupancy, a heated structure and a moderately sheltered site, per ASCE 7-22's own defaults. Exposed terrain, an unheated building or a steeper roof all shift the real number.
For a real application, skip the county number and go straight to the ASCE 7 Hazard Tool - enter your coordinates and it returns a site-specific figure a plan reviewer will recognize. See the methodology guide.