Mississippi County, AR Roof Snow Load - 10 psf
How much snow is too much for a roof in Mississippi County, AR?
10 psf: that's what ASCE 7-22 requires a typical heated home's roof in Mississippi County to carry. The physics-based figure alone would be 7 psf, but ASCE 7's own low-slope minimum (§7.3.4) sets a floor of 10 psf for flat and low-pitch roofs here, which is the number that actually governs.
Picture it, not just weigh it: 22 in. if it's fresh powder, 8 in. once it settles, or a mere 2 in. if it's ice. This is a modest add-on to standard roof loading - ordinary residential construction carries it without extra bracing.
Mississippi County at a glance
- Design roof snow load10 psf
- Ground snow load, ASCE 7 map10 psf
- National rank#1,811 of 2,758
- Arkansas rank#22 of 75
- Population38,095
- Annual snowfall, NOAA normal1.8 in.
- FIPS05093
How Mississippi County compares
10 psf ranks #1,811 of 2,758 US counties with a mapped snow load (top 66%) - and #22 of 75 in Arkansas. That's 0.1 psf below Arkansas's own county-average design load of 10.1 psf.
Population 38,095 (FIPS 05093), roughly 35.7669°N 90.0522°W. The 10 psf ground snow load ASCE 7-22 maps here becomes 10 psf once the code's own design factors are applied.
Typical snowfall in Mississippi County, AR
NOAA's 30-year normal for Mississippi County: 1.8 in. of snow a year, from the KEISER, AR US station. (fresh vs. packed vs. ice explains why.)
What this Mississippi County figure assumes
This is a county-level reference figure for a typical heated home built to Risk Category II (ordinary residential), on a partially exposed lot - the assumptions ASCE 7-22 itself treats as the default case. A steeper roof, a fully exposed hilltop lot, an unheated structure, or a higher risk category all change the actual number.
Mississippi County's permit office wants an address-specific figure, not this county average - the ASCE 7 Hazard Tool is free, takes under a minute, and outputs a PDF most reviewers accept. See the methodology guide.