Moody County, SD Roof Snow Load - 28 psf
Moody County, SD roof snow load, translated
A typical heated home in Moody 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. 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.
Moody County at a glance
- Design roof snow load28 psf
- Ground snow load, ASCE 7 map40 psf
- National rank#274 of 2,758
- South Dakota rank#31 of 65
- Population6,529
- Annual snowfall, NOAA normal40.4 in.
- FIPS46101
Where Moody County ranks
#31 of 65 South Dakota counties by design load, top 10% of 2,758 nationally - that's Moody County's spot. That's 0.2 psf below South Dakota's own county-average design load of 28.2 psf.
FIPS 46101, population 6,529, centered near 44.0124°N 96.6761°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.
Moody County: average annual snowfall
Moody County sees about 40.4 in. of snow most winters, per the FLANDREAU, SD US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Moody 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.