Lincoln County, AR Roof Snow Load - 10 psf
How much snow is too much for a roof in Lincoln County, AR?
10 psf: that's what ASCE 7-22 requires a typical heated home's roof in Lincoln County to carry. §7.3.4's low-slope minimum of 10 psf is what actually governs on a flat or low-pitch roof here - higher than the 7 psf the base ground-load formula gives.
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. A modest addition to standard roof loading. Ordinary residential construction handles this without extra bracing.
Already snow on the roof in Lincoln County?
Lincoln County in numbers
- Design roof snow load10 psf
- Ground snow load, ASCE 7 map10 psf
- National rank#1,969 of 2,758
- Arkansas rank#51 of 75
- Population12,868
- Annual snowfall, NOAA normal1.8 in.
- FIPS05079
How Lincoln County compares
10 psf ranks #1,969 of 2,758 US counties with a mapped snow load (top 71%) - and #51 of 75 in Arkansas. That's 0.1 psf below Arkansas's own county-average design load of 10.1 psf.
Population 12,868 (FIPS 05079), roughly 33.9564°N 91.7424°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 Lincoln County, AR
NOAA's 30-year normal for Lincoln County: 1.8 in. of snow a year, from the CANE CREEK SP, AR US station. (fresh vs. packed vs. ice explains why.)
What this Lincoln 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.
Lincoln 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. (How this figure is calculated.)