SnowLoadCheck

Bates County, MO Roof Snow Load - 20 psf

Bates County, MO: your roof's ASCE 7 snow number, in plain English

Moderate
20 psf

Bates County's roofs are built to hold 20 psf of snow, the ASCE 7-22 figure a permit reviewer checks first. ASCE 7's low-slope-roof minimum (§7.3.4) raises the governing figure to 20 psf - higher than the 14 psf the ground-load formula alone would give, and the code says use the larger one.

In depth, not weight: that's roughly 44 inches of fresh, light snow, 16 inches of old, settled snow, or as little as 4 inches of solid ice - snow that heavy is rare here but ice from a freeze-thaw cycle adds up far faster than the depth suggests. 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.

Bates County in numbers

Bates County by the numbers

Nationally that's #1,005 out of 2,758 rated counties, the top 36%; within Missouri alone, Bates County ranks #48 of 115. That's 1.4 psf above Missouri's own county-average design load of 18.6 psf.

Bates County, FIPS 29013, is home to 16,394 people near 38.2572°N 94.3392°W. Its 20 psf ground snow load figure is the map value; 20 psf is what a roof is actually designed for.

Bates County's snowfall, most winters

9.5 in. a year: that's Bates County's NOAA 1991-2020 snowfall normal, measured at BUTLER 4W, MO US (3.6 mi away). See the density guide.

Before you rely on Bates County's number

Treat the Bates County figure as a starting point, not a final answer: it assumes standard occupancy, a heated structure and a moderately sheltered site, per ASCE 7-22's own defaults. Exposed terrain, an unheated building or a steeper roof all shift the real number.

For a real application, skip the county number and go straight to the ASCE 7 Hazard Tool - enter your coordinates and it returns a site-specific figure a plan reviewer will recognize. (How this figure is calculated.)