Chickasaw County, MS Roof Snow Load - 10 psf
How much snow is too much for a roof in Chickasaw County, MS?
10 psf: that's what ASCE 7-22 requires a typical heated home's roof in Chickasaw County to carry. 7 psf is what the ground-load formula alone gives; Chickasaw 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.
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. Standard residential construction handles a load this size without extra bracing; it is a modest addition on top of ordinary roof loading.
Chickasaw County in numbers
- Design roof snow load10 psf
- Ground snow load, ASCE 7 map10 psf
- National rank#1,933 of 2,758
- Mississippi rank#24 of 82
- Population16,774
- Annual snowfall, NOAA normal0.8 in.
- FIPS28017
How Chickasaw County compares
10 psf ranks #1,933 of 2,758 US counties with a mapped snow load (top 70%) - and #24 of 82 in Mississippi. Mississippi counties average 6.5 psf; Chickasaw County runs 3.5 psf higher than that.
Population 16,774 (FIPS 28017), roughly 33.9333°N 88.9476°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 Chickasaw County, MS
NOAA's 30-year normal for Chickasaw County: 0.8 in. of snow a year, from the HOUSTON, MS US station. (fresh vs. packed vs. ice explains why.)
What this Chickasaw 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.
Chickasaw 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.