Bradley County, TN Roof Snow Load - 10 psf
Bradley County, TN: your roof's ASCE 7 snow number, in plain English
Bradley County's roofs are built to hold 10 psf of snow, the ASCE 7-22 figure a permit reviewer checks first. §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.
In depth, not weight: that's roughly 22 inches of fresh, light snow, 8 inches of old, settled snow, or as little as 2 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. A modest addition to standard roof loading. Ordinary residential construction handles this without extra bracing.
Bradley County, TN: quick facts
- Design roof snow load10 psf
- Ground snow load, ASCE 7 map10 psf
- National rank#1,704 of 2,758
- Tennessee rank#16 of 95
- Population113,782
- Annual snowfall, NOAA normal0 in.
- FIPS47011
Bradley County by the numbers
Nationally that's #1,704 out of 2,758 rated counties, the top 62%; within Tennessee alone, Bradley County ranks #16 of 95. 10.3 psf is Tennessee's typical county figure - Bradley County comes in 0.3 psf under it.
Bradley County, FIPS 47011, is home to 113,782 people near 35.1539°N 84.8594°W. Its 10 psf ground snow load figure is the map value; 10 psf is what a roof is actually designed for.
Bradley County's snowfall, most winters
0 in. a year: that's Bradley County's NOAA 1991-2020 snowfall normal, measured at RINGGOLD 2 SE, GA US (21.1 mi away). See the density guide.
Before you rely on Bradley County's number
Treat the Bradley 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. See the methodology guide.