Daggett County, UT Roof Snow Load - 20 psf
Daggett County, UT roof snow load, translated
A typical heated home in Daggett County is designed to carry 20 pounds per square foot of snow on its roof, per ASCE 7-22. 14 psf is what the ground-load formula alone gives; Daggett County's 20 psf low-slope minimum (§7.3.4) beats it, so that figure is the one that governs on flat and low-pitch roofs.
On a roof that means 44 in. of fresh snow, 16 in. once it packs down, or 4 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.
Daggett County in numbers
- Design roof snow load20 psf
- Ground snow load, ASCE 7 map20 psf
- National rank#1,290 of 2,758
- Utah rank#3 of 10
- Population956
- Annual snowfall, NOAA normal62.1 in.
- FIPS49009
Where Daggett County ranks
#3 of 10 Utah counties by design load, top 47% of 2,758 nationally - that's Daggett County's spot. 16.6 psf is Utah's typical county figure - Daggett County beats it by 3.4 psf.
FIPS 49009, population 956, centered near 40.8901°N 109.5058°W. ASCE 7's underlying ground snow load here is 20 psf before the code's exposure and importance factors bring it to the 20 psf design figure above.
Daggett County: average annual snowfall
Daggett County sees about 62.1 in. of snow most winters, per the MAESER 9NW, UT US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Daggett 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. See the methodology guide.