Crowley County, CO Roof Snow Load - 10 psf
Crowley County, CO roof snow load, translated
A typical heated home in Crowley County is designed to carry 10 pounds per square foot of snow on its roof, per ASCE 7-22. 7 psf is what the ground-load formula alone gives; Crowley County's 10 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 22 in. of fresh snow, 8 in. once it packs down, or 2 in. of solid ice - three very different piles for the same load. Standard residential construction handles a load this size without extra bracing; it is a modest addition on top of ordinary roof loading.
Crowley County in numbers
- Design roof snow load10 psf
- Ground snow load, ASCE 7 map10 psf
- National rank#2,039 of 2,758
- Colorado rank#21 of 24
- Population5,600
- Annual snowfall, NOAA normal14.1 in.
- FIPS08025
Where Crowley County ranks
#21 of 24 Colorado counties by design load, top 74% of 2,758 nationally - that's Crowley County's spot. That's 7.7 psf below Colorado's own county-average design load of 17.7 psf.
FIPS 08025, population 5,600, centered near 38.3062°N 103.7727°W. ASCE 7's underlying ground snow load here is 10 psf before the code's exposure and importance factors bring it to the 10 psf design figure above.
Crowley County: average annual snowfall
Crowley County sees about 14.1 in. of snow most winters, per the ORDWAY 1 ENE, CO US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Crowley 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.