Woodruff County, AR Roof Snow Load - 10 psf
Woodruff County, AR roof snow load, translated
A typical heated home in Woodruff 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; Woodruff 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. A modest addition to standard roof loading. Ordinary residential construction handles this without extra bracing.
Woodruff County, AR: quick facts
- Design roof snow load10 psf
- Ground snow load, ASCE 7 map10 psf
- National rank#2,038 of 2,758
- Arkansas rank#69 of 75
- Population5,808
- Annual snowfall, NOAA normal1.4 in.
- FIPS05147
Where Woodruff County ranks
#69 of 75 Arkansas counties by design load, top 74% of 2,758 nationally - that's Woodruff County's spot. 10.1 psf is Arkansas's typical county figure - Woodruff County comes in 0.1 psf under it.
FIPS 05147, population 5,808, centered near 35.1928°N 91.2445°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.
Woodruff County: average annual snowfall
Woodruff County sees about 1.4 in. of snow most winters, per the AUGUSTA, AR US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Woodruff 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.)