Stutsman County, ND Roof Snow Load - 28 psf
Stutsman County, ND roof snow load, translated
A typical heated home in Stutsman County is designed to carry 28 pounds per square foot of snow on its roof, per ASCE 7-22.
On a roof that means 61.6 in. of fresh snow, 22.4 in. once it packs down, or 5.6 in. of solid ice - three very different piles for the same load. Modern-code homes carry a load like this without issue; an older addition, a carport, or any flat-roofed section is where it is worth checking first.
Stutsman County at a glance
- Design roof snow load28 psf
- Ground snow load, ASCE 7 map40 psf
- National rank#249 of 2,758
- North Dakota rank#17 of 49
- Population21,546
- Annual snowfall, NOAA normal46.1 in.
- FIPS38093
Where Stutsman County ranks
#17 of 49 North Dakota counties by design load, top 9% of 2,758 nationally - that's Stutsman County's spot. 29.4 psf is North Dakota's typical county figure - Stutsman County comes in 1.4 psf under it.
FIPS 38093, population 21,546, centered near 46.9722°N 98.9561°W. ASCE 7's underlying ground snow load here is 40 psf before the code's exposure and importance factors bring it to the 28 psf design figure above.
Stutsman County: average annual snowfall
Stutsman County sees about 46.1 in. of snow most winters, per the JAMESTOWN STATE HOSP, ND US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Stutsman County's figure
The figure above assumes the case ASCE 7-22 treats as typical: a heated, ordinary-occupancy home on a partially exposed site. Change any of those - exposure, heating, roof pitch, occupancy category - and the real design number moves.
A building permit needs the number at your exact address, not the county average - the free ASCE 7 Hazard Tool returns that from your coordinates in about a minute and produces a PDF a plan reviewer will accept. (How this figure is calculated.)